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Ask HN: File format for declarative language? - mchahn
I'm in the process of developing a pure declarative language. The source consists of simple JS-like data structures that would be at home in a JSON file. I have two questions ...<p>- I'm naturally considering using JSON, but I don't think it is great for writing original code. It has too much visual clutter like quotes. My next thought was YAML but it seems kind of obtuse and overly-complex. Any thoughts on this would be appreciated. Am I overlooking any?<p>- Assuming I have a format chosen, can I use a new custom file suffix matching my language or must it be `.yml`, `.json`, etc.? One could argue that the suffix should match the syntax (`.json`) or one could argue it should match the semantics (my language). There are languages than match C syntax but don't have the `.C` suffix (if I'm not mistaken).
======
twangist
If you opt for making your declarative language a subset of JSON or YAML,
presumably it will be a proper subset, with some further expectations and
constraints. It makes total sense to use a custom file extension — say,
`.mdl`, "my declarative language", for the sake of discussion. Users will be
able to easily find their files written in your language without having to
wade through all possible files of the superset format. A `.mdl` file really
is its own thing, it's not just a .json or .yml file. It may be the case that
a `.mdl` file is a just `.json` or `.yml` file, but the converse will not be
true.
The only advantage I can think of that accrues from using the more common
extension is editor support: a user's favorite editor may well provide syntax
highlighting and checking, auto-indenting, etc. for `.json` or `.yml` files,
but not for `.mdl` files out of the box. You might want to develop `.mdl`
profiles (sic) for popular editors.
Any decent parser for the 'true' format will accept either a string or a full
filename (including extension) and shouldn't expect a fixed file extension.
Regrettably I can't think of a single example right now, but I know I've
encountered many programs that use custom file extensions which have turned
out to be just some familiar format after all.
That said, it's another question whether either JSON or YAML is a great
choice. I agree with your reservations about both. In fact I've had the very
same problem in a couple of development projects, one recently. JSON is
friendlier than XML, true, but it's not really a language to think in, even
declaratively — too much clutter. YAML is certainly versatile enough, but it
provides probably more than you need, and it is... yes, obtuse. Of course, it
depends on your intended users; I found it was too "programmerly" for mine. I
ended up developing a custom parser for a language with more syntactic sugar
than YAML, which has its advantages and disadvantages.
------
brudgers
One way to look at it is as a domain specific language and the choice as
between an embedded DSL or a stand alone DSL. The advantage of an embedded DSL
is that a lot of existing tooling can be leveraged and the entire host
language can be leveraged. On the other hand, debugging in the new language
may wind up requiring deep knowledge of the host. JVM languages often have
that drawback.
But at a higher level, the new language should be designed around it's use
case. If it's always used in a JavaScript context, the JSON might make more
sense. If it's for *nix hackers then YAML might be better. If it's for
phlembotomists then perhaps something altogether new.
Good luck.
------
mchahn
Thanks everyone. You've given me more to think about. Unfortunately I'm still
on the fence. Usually I'm a lot more decisive. I guess it shouldn't matter in
the long run. But you know how it is, I want my new language to be perfect.
~~~
ahazred8ta
[https://en.wikipedia.org/wiki/S-expression](https://en.wikipedia.org/wiki/S-expression)
and [https://en.wikipedia.org/wiki/Xupl](https://en.wikipedia.org/wiki/Xupl)
are available and have many language bindings
------
twunde
1)There are a couple alternatives. There's TOML, axon.
2)It can be whatever you want. It's your language. If you are reusing a
current format it will be easier for devs and sysadmins to keep the current
syntax
------
borplk
If you don't mind I'd like to ask what the language is about?
| {
"pile_set_name": "HackerNews"
} |
Show HN: Videoloupe for Mac – A new video player and editor for macOS - kennycarruthers
https://www.videoloupe.com
======
kennycarruthers
Developer here...
Two years ago, the Hacker News community helped kick off my indie-developer
"career" with Fileloupe for Mac. Now I'd like to share my second app,
Videoloupe for Mac with everyone. If you're a macOS user and do anything with
video, then Videoloupe probably has some cool features you'll find
interesting.
I've "soft launched" the app this week and would love any feedback. There's a
free trial, but if you'd like to purchase a copy then please take advantage of
this 50% off coupon code: VLHACKERNEWS
[https://www.videoloupe.com](https://www.videoloupe.com)
I've benefitted so much from reading the stories of other indie developers
here on Hacker News. Hopefully my story helps encourage others. Thanks so
much.
| {
"pile_set_name": "HackerNews"
} |
Show HN: My humble little side project to support OSS and developer happiness - sleight42
http://rubypair.com
======
damncabbage
Just a heads-up: signing in with GitHub automatically puts you in _both_ the
Remote and In-Person lists if you just cancel out of the form that pops up
after you authenticate.
~~~
sleight42
Yup. That's intentional for now. We assume that you signed up for a reason.
You just didn't tell us exactly why. So we make a broad assumption. ;)
------
tomstuart
What does this site do? Is it a directory of developers who are willing to
pair, or something more/else? Can I find out without signing up?
~~~
sleight42
Ok, we kind of glossed over that. I'll update the about page.
In a nutshell: we're about helping kindred developer spirits find one another
for local/remote pairing. Later on, I'm hoping to add more features to
actively mediate the experience.
I'd love to integrate with pair.io to help other people remote pair. But, for
now, I use a simple arrangement of SSH+tmux+vim+skype to remote pair with
folks when I do.
------
ahmetalpbalkan
Why is this Ruby-specific? I see other language tags in other people's
interests.
~~~
sleight42
Totally. Nola already had the domain so we went with that. I still see the app
as an experiment. Once we get things more nailed down, I'm thinking about
opening it up beyond Ruby.
Besides, frankly, we "Rubyists" tend to be polyglots. That is to say: there's
nothing stopping Java developers from signing up. :D
| {
"pile_set_name": "HackerNews"
} |
[iOS] Create a Protocol-Oriented Animations Library in Swift 3 - kalub92
https://www.youtube.com/watch?v=AySlYrel7fc
======
fish111222999
I saw this video a while back. Pretty good stuff. Any good protocol-oriented
book suggestions?
~~~
kalub92
Hmm... The Packt Publishing POP book is good and actually it looks like they
just came out with the Swift 3 version! I only have the Swift 2 version but it
really compares the POP method with OOP and shows it's strengths and pitfalls.
[https://www.amazon.com/gp/aw/d/1787129942/ref=mp_s_a_1_1?ie=...](https://www.amazon.com/gp/aw/d/1787129942/ref=mp_s_a_1_1?ie=UTF8&qid=1491399538&sr=8-1&pi=AC_SX236_SY340_QL65&keywords=protocol+oriented+programming)
| {
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The tyranny of chairs: why we need better design - SirLJ
https://www.theguardian.com/artanddesign/2020/aug/25/the-tyranny-of-chairs
======
mattlondon
Just out of curiosity, am I the only one that seems to be happy to just sit on
a dining chair when at my desk?
When the WFH wave hit, people seemed to be going mad buying webcams and office
chairs. Loads of people I work with spent a _lot_ of energy researching and
discussing chairs etc.
I have a sit-stand desk and I stand for perhaps 2 to 3 hours any working day.
But the rest of the time I just sit on a normal old wooden dining chair. No
pain. No aches. No RSI. No CTS.
I've been doing this for decades and nothing seems to have gone wrong yet. I
do run 2 to 4 times a week so I do wonder if that helps avoid problems?
Are all the uber-expensive office chairs just snake oil? Or have I just been
lucky?
~~~
2OEH8eoCRo0
>I do run 2 to 4 times a week so I do wonder if that helps avoid problems?
I think there are a lot of stressed and unconditioned office workers who want
some magical device to solve everything. Vertical mice, split vertical
keyboards, expensive chairs. None of it replaces exercise.
Might be a controversial opinion.
~~~
nostromo
This is my experience.
I had lower back pain while sitting at a desk when I was younger.
Once I started lifting weights, and specifically doing heavy deadlifts, I've
never had back pain again.
Interestingly, a lot of people are afraid deadlifts will _cause_ back pain,
but in my case at least, it _cured_ back pain.
~~~
stouset
General fitness and strength training is just about the closest thing we have
to a miracle cure for a wide array of common issues.
~~~
2OEH8eoCRo0
Yup. Too bad it doesn't come in pill form.
------
scrooched_moose
If anyone is looking for a better chair, we found this was a great time to
pick up Herman Miller Aerons off of craigslist.
There's a steady stream of small-to-medium offices in our area closing, and
they're all liquidating office furniture. We picked up 2 for $500.
They're a massive improvement over my $80 chair that was fine for a few hours
a week pre-WFH, and my back is feeling much better.
~~~
supernova87a
This isn't exactly work related, but do people have opinions on the Herman
Miller Eames chair? You know, this iconic look? [1]
I ask because the lockdown has me fantasizing about distracting myself with
replacement stuff for the home.
But this chair is freakin $5000. Is it that good to be worth it? Or are any of
those $1000 knockoffs acceptable quality?
[1] [https://www.hermanmiller.com/products/seating/lounge-
seating...](https://www.hermanmiller.com/products/seating/lounge-
seating/eames-lounge-chair-and-ottoman/)
~~~
scrooched_moose
We have a 60s hand-me-down Eames.
It is a very good chair. The build quality is fantastic and stylistically it
still holds up.
It is truly a "lounge chair" though - almost a semi-recliner. I rarely use it
if it's a social situation because it sits back so far. It's amazing for
relaxing and watching TV or a movie though.
I'm assuming the quality has held up. I've never tried a knock off.
------
adamnemecek
The worst chair in the world is the American high school/college desk+chair
combo like this one
[https://www.schooloutlet.com/v/vspfiles/assets/images/Screen...](https://www.schooloutlet.com/v/vspfiles/assets/images/Screen%20Shot%202016-07-13%20at%2010.00.49%20AM.png)
The people making and buying these place are committing crimes against
humanity.
~~~
grugagag
It's not comfortable but I don't think that's the worst chair especially if
you pay attention how you sit in it. The worst chair is the cheap office chair
that is often misaligned, wobbly and encouraging you to rest your back in a
wrong way. And the free rotating swivel makes sure you are you really have a
bad posture and not being able to sit properly. I relearned to sit down and
now prefer a rigid surface and most often don't rest my back on anything. If
your back is tired and you need to use the backrest it's time to get up and
walk around a bit.
~~~
adamnemecek
You shouldn't have to pay attention to how you sit in it. there is literally
only one position to sit in.
~~~
KozmoNau7
You can almost certainly improve how you sit down. A lot of people just sort
of flop down and sit with their hips slid forward and a pronounced bend in
their back. Anecdotally I have also noticed many of the same people
complaining about a lack of legroom in trains, airplanes, cars and so on.
If they would simply sit down by pushing their butt and lower back into the
chair instead of lazily flopping down, there would be plenty of space.
(Not directed at those people with long legs, who do have genuine legroom
issues even when sitting up straight)
------
Theodores
Chairs need a failsafe mode. This is what I call better design.
Recently my father sat on a chair that collapsed underneath him. It was a
seemingly okay teak garden chair that had been recently in service and offered
up to important guests. So in that way it was good that it was him rather than
his brother in law or elderly neighbour that received a bruised elbow.
This got me thinking about the safety of chairs. This chair - a folding chair
- really should have included a wire around the seat so that it had a failsafe
mode in order to prevent complete failure once the wood of the seat eventually
gave up.
There should be proper testing of seats to see if they are fit for purpose.
Car seats for babies can't be passed on because there could be some crack in
the polystyrene, yet regular chairs have no standards for safety. It is not a
big deal until such time as you see a valued relative come a cropper.
Design is how it works and chairs are not designed to have a failsafe aspect
to the design.
~~~
lightgreen
Realistically, how many people get injured from collapsed chairs? I think less
than from fire or drowned or something.
Just buy not the cheapest chair, and you will be safe.
~~~
Theodores
There is no such thing as an accident. If your chair breaks in a restaurant
you can sue them. I bet the restaurant owners never thought of this when
setting up. Injuries can also be quite serious, it depends on the circumstance
and the individual.
Your argument is the same for airbags, seatbelts and wearing hard hats. We
live in a Health and Safety world where liability exists. Except for chairs.
------
jamespetercook
I don’t think I’ve ever found a chair that I felt completely comfortable in. I
like to sit upright and feel alert and most chairs seem to be made for
relaxing. I’ve always wondered if it’s just me or not, and have often thought
about designing a chair but realistically I don’t have the skills :(
~~~
TACIXAT
I have this same issue. I've never seen a chair that supports shoulders back
and down good posture. They all seem to hunch or arch forward. None offer the
mid back support needed to put your chest forward.
Same situation for sitting cross legged. My solution for posture has been a
standing desk. I never really made any progress on my posture until I started
standing.
------
blunte
At age 35, otherwise healthy and having spent 10 years in Herman Miller Aeron
chairs, I had hip problems and a small but growing waistline.
Then I transitioned to working from home and built my own standing desk (sadly
before the very affordable mechanical Ikea standing desk was first released...
But which I have now happily used for years).
The first few weeks were challenging, but within three months I could stand
for 12+ hours a day, and my hip problems went away. Also my overall energy
seemed higher, and afternoon energy dips became less noticeable.
For 13 years now I stand for virtually all of my day, and I have no back or
hip problems. I do have slight spider veins on my ankles and knees, and that
may be due in part to the standing. But it is cosmetic and barely visible, and
totally worth the trade.
~~~
grugagag
How do you type standing for long periods of time? Do you rest your arms on
the table?
~~~
chiefalchemist
If you're using a mouse my PT told me to "anchor" your elbow on the desk so
you use your wrist to move the mouse, not your upper back. This is true
whether standing or sitting.
There was a good reason I was in PT and was told this ;)
~~~
blunte
I've always used a mouse with my fingertips, and my outer hand bone is resting
on the mouse mat. Rarely am I pushing the mouse around with my entire hand or
arm...
~~~
chiefalchemist
It's not your "entire arm" per se. It's that - per the PT - the shoulder and
upper back aren't designed for repetitive micro-movements. That is, unless
your elbow is anchored your shoulder is likely doing more work than it should.
------
raindropm
For anyone that have sore butt syndrome, here's my personal tip: improve blood
circulation of your...butt!
I bought Steelcase Think six month ago to replace my $50 chair, and while it
is good chair with good price and comfy-but-firm seat cushion, it cannot solve
my chronic "sore butt" problem. Half and hour in the chair and my butt
soreness begin to appear. Doesn't help that I'm the type that sit in front of
monitor all day. I know I need to move more frequently, or did some light
exercise or stretching, but when you need to work, you need to sit anyway.
Then I read that the soreness is the result of lack of blood circulation, so I
decide to give thing that improve it a try: a beads car seat. You know, the
vintage-looking one taxi driver use.
THE SORENESS IS GONE. It's been several months since. Now I can sit all day
long without feeling a thing.
Note that the version I use is the 'beads mat' with rubber texture on the
bottom(This is important because it help prevent the beads seat from slipping)
~~~
mpol
Sore butts are a common theme in cycling :) On longer rides people might
prefer harder saddles. A softer seating clamps down on your soft tissue and
prevents proper blood circulation. Having a harder seating will make you sit
on your sit bones and have your blood flow free. The sit bones can start to
feel a bit irritated after some time, but that is the time to get up for a
walk. If your soft tissue (from lack of blood flow) starts hurting, it is
because it is starting to get damaged. Even if you would walk for an hour and
sit again, the pain would come back instantly.
~~~
raindropm
That's new to me! because I never ride a bike more than 10 minutes at a time
haha.
Everything you describe is what I experience. I have good time sitting on my
old wooden chair, and yes, the butt is free of pain (but my back hurt instead,
because its backrest is in upright 90 degree angle) also there is not armrest
whatsoever so I can't work for long....
well, maybe that's the point, I need to move more.
------
rkagerer
I hate how the first thing this site does is make me lie and say "I'm Happy"
about their cookies.
------
war1025
I read somewhere that if you want good posture, just sit on the edge of the
seat. So that's what I do and it seems to work fine.
Chairs with backs are nice, but it seems like they will always just lead to
terrible posture.
~~~
NicolasGorden
I've used a posture corrector. It's really very effective and cheap. Love it
since it makes me conscious every time I start slouching.
------
amanaplanacanal
We would do better for ourselves to get rid of chairs entirely and sit on the
floor. Getting down and up from the floor is a natural human movement that
would keep us all fitter into old age.
~~~
johnchristopher
Have you tried sitting on the floor and work with a keyboard ? Do you have a
setup you could share ?
I suppose Japanese should have something fitting but that might be a
stereotype.
~~~
dmvinson
[https://www.nutritiousmovement.com/furniture-free-
ahs13/](https://www.nutritiousmovement.com/furniture-free-ahs13/) is an
example of someone doing this in their home. Personally, my setup is a coffee
table along with a zafu (buckwheat hull filled floor cushion) and sheepskins
or a zabuton to cushion the floor a little. It's very comfortable, although
I'd like to also have a standing desk to go with it. Coffee tables tend to be
a pretty good height for this purpose if you want to avoid purchasing
something custom. Besides that it's just a regular desk setup, albeit missing
drawers or storage on the table.
~~~
johnchristopher
> [https://www.nutritiousmovement.com/furniture-free-
> ahs13/](https://www.nutritiousmovement.com/furniture-free-ahs13/)
Interesting reading, thanks.
Would you be so kind as to share a picture of your setup ? To have a rough
idea of heights, space arrangements, elbow positioning, etc. ?
~~~
dmvinson
Yeah, here is what I'm working with as of now. Moved recently (like everyone
else) and still getting an office setup, but this is the basics. As far as
height, I'd say it's a very ergonomically sound setup when in kneeling
position with the cushion in between your feet. Laptop just below eye level,
arms level, etc.
I think the biggest benefits are it forces you to move and adjust a little bit
more than in a chair, and forces you to use your muscles to sit properly much
more. Would highly recommend to anyone.
[https://ibb.co/XYN3HFx](https://ibb.co/XYN3HFx)
The coffee table is [https://www.ikea.com/us/en/p/lisabo-coffee-table-ash-
veneer-...](https://www.ikea.com/us/en/p/lisabo-coffee-table-ash-
veneer-70297658/) The sheepskin is from sheepskin town, but any cushioning
that softens the floor for your ankles/knees is good.
~~~
johnchristopher
Thanks a lot, much appreciated !
I was browsing though the different pillow/cushion and was a bit worried at
first by the $150 zafu/zabuton but it looks like there are ~$50 ones so I can
give it a try.
------
gagabity
The Ikea POANG recliner chair, you know the one, is the most comfortable chair
I have ever used, you need to rearrange your desk setup because its so low and
leaned back but once you have it destroys any other option out there, your
back is just relaxed.
~~~
tonyedgecombe
I can sit and read in mine but I can't imagine trying to work in it.
------
polote
I have been trying to find info on laying down desks and chairs in the past
few weeks, but there is really not a lot of people who have experienced with
it. If you had, please comment here
~~~
megameter
Here is my setup, which is a very inexpensive, low-footprint way of doing it:
1\. A large lap desk. This is a powerful tool for adding flexibility as you'll
see. It lets you keep all the peripherals near you. I currently use it with a
USB hub, a 65% mechanical keyboard, a keypad with macro functions, and a
trackball mouse.
2\. A floor chair with reclining functions. The one I have is one of the
cheapest on Amazon, basically a folding backrest with a bit of cushion.
3\. A laptop/monitor arm and a shelf to hang it off of.
With a laptop angled at 90 degrees so that the screen is overhead, I have a
fully supinated setup on the floor, with the floor chair folded most of the
way back for support.
But it gets better. With a low folding table or breakfast tray I can switch
the laptop and chair over to floor seating. Here the lap desk serves as a way
to let me move around more. This is a great way to add variety of posture and
stretch as I work, and I find that I use different positions for different
levels of intensity during the day. Supination is better for passive viewing,
while upright with no support is focused, intense. Seated with the chair
reclined is the medium for "Tired but still want to work".
And then I still have more traditional feet-dangling seats I can use too.
Again, just haul over the lap desk and plug in.
The best part is, none of these items need to cost more than $100. Most are
closer to $50. So you can solve everything with an investment of perhaps
$200-300.
~~~
nfour
Sounds interesting - I have a lapboard setup as well but it could use
improvement.
Any chance you could provide some pictures?
------
spaetzleesser
It kind of sucks that computers allow us to do most of our work while sitting
in the same place. When I started working there were more reasons to get up,
take something somewhere, walk to the printer and so on. This feels much
healthier.
I don’t think any design with better chairs, stand up desks or whatever will
make it healthy to stay in the same place the whole day. If I had to choose a
career now I would definitely think about something that allows for more
walking or other activity.
------
jseliger
For people working at computers in offices, get a motorized desk that can
raised or lowered to a pre-determined height at the push of a button.
[https://jakeseliger.com/2015/01/24/geekdesk-max-sit-stand-
de...](https://jakeseliger.com/2015/01/24/geekdesk-max-sit-stand-desk-review-
two-years-with-a-motorized-desk/)
------
armagon
Gee, I was just thinking I needed to make some new chairs for the kitchen
table (which seems to be a somewhat challenging woodworking project, as curves
as usually called for and the way to craft them isn't obvious). I wish the
article offered more advice about what makes a good chair, or chair
alternative.
~~~
cpwright
If you are going to invest the effort in a set of dining chairs, I would
recommend watching the Wood Whisperer guild dining chair videos. I have made a
Hank chair and high chairs, but have never made a dining char. I did buy the
class and found how Marc Spagnuolo broke it down interesting and informative.
------
throwawaysea
Perhaps we need to design for a furniture-less world, where we sit and stand
as we did for most of our evolution.
~~~
lightgreen
We just need neuralink with text input and output to the visual cortex so we
could do our work literally anywhere: on the bus, lying on a bed, taking a
shower.
------
trashcan
I replaced an Aeron with a a gaming chair that was much more affordable
(although it was back-ordered for a few months). What a huge improvement! It
feels like I'm in a bucket seat in a car, which is basically what it is.
~~~
herman_toothrot
Which specific chair did you get?
~~~
trashcan
[https://secretlab.co/collections/omega-
series](https://secretlab.co/collections/omega-series). I opted for the fabric
cover to discourage my cats from chewing on it. :)
------
unnouinceput
I use my bed as my chair. My desk has wheels, so I can sit on my "chair" way
more comfortable then on any expensive chair.
------
sgt101
I got a gaming chair at the beginning of lockdown, and I propped up my desk to
get everything to the right height. The things I looked for : adjustable arm
rests, adjustable height, adjustable tilt and headrest & lumbar support.
Also buy a 28" 4k monitor, proper keyboard and mouse device of choice (I got
an apple magic pad).
All for ~ £500. It's worth the investment.
~~~
_alex_
Do you like the gaming chair? I ordered an aeron and didn’t like it, sent it
back. Need a new chair. Decade old office chair is falling apart.
~~~
sgt101
yes, it's good : [https://secretlab.co.uk/collections/titan-xl-
series](https://secretlab.co.uk/collections/titan-xl-series)
~~~
bladegash
I have the Omega and love it. Comes with a lumbar pillow too, which works
great.
------
lightgreen
Btw for those who are in London I can recommend refurbished Herman Miller
chairs from this guy
[http://www.welovechairs.co.uk/](http://www.welovechairs.co.uk/) I’m not
affiliated with him, just bought a chair from him and was very happy by the
service.
------
ezoe
Exercise ball is the best chair for me. It has the best cushioning unmatched
to any unreasonably expensive chairs. Backrest and armrests aren't necessary.
You should have developed enough core to support your weight.
You are free from developing injuries caused by long use of ordinary chair.
It's cheap and portable too.
------
BrandoElFollito
I've been sitting on a ball at the office for now 3 years. I love it.
I do not have any hard numbers, but the fact that I move around, make small
jumps , must keep balance etc. seems to be a good thing.
I was sitting on an office chair at home during lock down and I think my back
hurted more
------
LoSboccacc
> The real science of ergonomics, Cranz argues, should point designers toward
> chair design that supports and enables the body’s need for movement, not
> stillness – with seats that angle downward in front, for example, and have a
> base that’s flexible enough for the sitter to shift their body weight from
> leg to leg
weird then not finding mention of the Varier Balans chairs.
I had one growing up, and bought another one after a month of lockdown as my
home office setup wasn't meant for extended usage.
that one and a standing desk seems working well so far.
------
mspe
You could also combine furniture instead of buying an expensive standing desk:
[https://imgbox.com/9tFW5Pvs](https://imgbox.com/9tFW5Pvs)
------
blueridge
My sense is that we all just need to _move_ more: sit, stand, roll around on
the rug, squat, go for a walk, you get the idea. Basically don't spend the
entire working day in a single position.
I briefly went through a phase where I thought I'd enjoy the no-furniture
lifestyle, but it wasn't for me. It also wasn't for my partner, nor my parents
when they come to visit, nor anyone else whom I might want to invite into the
home.
I don't want to Marie Kondo the shit out of my space—I want to surround myself
with beautiful, practical pieces of furniture that I enjoy using.
I don't think most people go and try out furniture before they bring it home.
I'm talking multiple trips to a furniture store, where you go and sit and
explore the same few pieces over and over and until you're sure you've found
something you love.
You've got to stay seated for a bit to figure out where the pressure points
are, whether or not the angle or depth of a seat makes your legs go numb, or
hurts your back, etc. Do you like a firm seat? Do you like to sit "on" the
cushions, or "down in to" the cushions? You want something with a high seat,
or a low seat? There's a lot of furniture out there. It pays to take time to
do the research, learn about how it's built, learn about different fabric
types and how they affect the way a cushion holds it shape, then spend a good
deal of money on a quality product.
Furthermore, there's a huge difference in quality between buying a chair from
West Elm and buying a chair from Knoll. For instance, I think this is one of
the most comfortable and practical chairs on the planet:
[https://www.knoll.com/product/saarinen-executive-arm-
chair](https://www.knoll.com/product/saarinen-executive-arm-chair)
We use it as a dining chair, and as a reading chair with an ottoman, and as a
standard desk task chair. It's truly wonderful. Is it expensive? Yes it is.
But it looks great, it's built well, it has a firm and comfortable seat, and
it'll last a lifetime.
But hey, comfort is subjective, you like what you like!
Edit for those who are furniture shopping:
\- Saarinen chair linked above also comes with casters and hydraulic lift:
[https://www.knoll.com/product/saarinen-executive-arm-
chair-s...](https://www.knoll.com/product/saarinen-executive-arm-chair-swivel-
base)
\- Don't knock it, it's surprisingly comfortable for long stretches:
[https://www.knoll.com/product/brno-chair-flat-
bar](https://www.knoll.com/product/brno-chair-flat-bar)
\- Great reading chair (with ottoman) if you have the space:
[https://www.knoll.com/product/womb-chair](https://www.knoll.com/product/womb-
chair)
\- Of course, the Eames lounge chair is a classic, though if you're taller
than 5'8" go with the Tall version as you'll get a deeper seat and head
support. For those with lumbar spine issues, probably not the most
comfortable: [https://www.hermanmiller.com/products/seating/lounge-
seating...](https://www.hermanmiller.com/products/seating/lounge-
seating/eames-lounge-chair-and-ottoman/)
\- Wonderfully firm sofa, great for long meetings, reading with attention. If
you like to lounge, not great for movie nights. Durable fabric options, along
with custom leather: [https://www.roomandboard.com/catalog/living/sofas-and-
lovese...](https://www.roomandboard.com/catalog/living/sofas-and-
loveseats/andre-sofas)
| {
"pile_set_name": "HackerNews"
} |
A Field Guide to the 'Weapons' of Hostile Architecture in NYC - pseudolus
https://gothamist.com/2019/08/14/hostile_architecture_nyc.php
======
ng12
Skateboarders destroy things. They wax concrete edges and repeatedly grind
them with metal trucks -- it doesn't take long at all for the edge to be worn
away. If you've skated for any period of time you can pretty easily pick out
where skateboarders have been. Additionally these edges usually exist in
pedestrian areas, I can't tell you how many times I've almost been knocked
down in front of Borough Hall.
I don't know if I'd term anti-skater deterrents as "hostile" but they are a
necessity.
~~~
ceejayoz
Stuff like [https://www.instagram.com/p/B0jF72Sp-
wh/](https://www.instagram.com/p/B0jF72Sp-wh/) aren't for skateboarders,
though.
------
thinkingemote
There was a great blog by a PhD student called Architectures of Control that
listed many of these.
------
clockfan24
Walk through there on your way home from work at 9pm and tell me if you change
your mind.
~~~
sterkekoffie
Do you think all the people taking these photographs just go home to the
suburbs at night? This is a difference in worldview, not life experience.
| {
"pile_set_name": "HackerNews"
} |
Volkswagen Chief Martin Winterkorn Resigns Amid Emissions Scandal - aaronharnly
http://www.nytimes.com/2015/09/24/business/international/volkswagen-chief-martin-winterkorn-resigns-amid-emissions-scandal.html
======
jeromeflipo
In July, France 2 (the #1 public national television channel in France)
released a documentary [0] that showed to which extent the French auto
manufacturer PSA lied about NO2 emissions.
At 1h19s [1], Pierre Macaudière, head of emission control systems at PSA,
admits that the model tested emits 1700 ppm of NO2, after measuring 200 ppm
(the legal limit) with their own machines.
At 1h17m11s [2], the researchers commissioned by the EU shows the journalist
that _not one_ manufacturer respects the legal limits of 200 ppm. He's
frightened to tell the journalist that it's all just a widespread fraud.
* [0] [https://www.youtube.com/watch?v=5JFprj6v37Q](https://www.youtube.com/watch?v=5JFprj6v37Q)
* [1] [https://youtu.be/5JFprj6v37Q?t=1h19s](https://youtu.be/5JFprj6v37Q?t=1h19s)
* [2] [https://youtu.be/5JFprj6v37Q?t=1h17m11s](https://youtu.be/5JFprj6v37Q?t=1h17m11s)
~~~
differentView
If that's true, then there's no way government officials weren't bribed and
need to be prosecuted.
~~~
ekianjo
Which calls for decentralized inspection, instead of relying again and again
on governments to do the right thing. The only thing they are good at is
accepting bribes.
~~~
anigbrowl
Kind of throwing the baby out with the bathwater there, no? I was in and out
of publicly-run hospitals as a child, I wouldn't be alive today if not for
socialized medicine.
~~~
duncan_bayne
That's incorrect. You wouldn't be alive today without medicine; the fact that
it was provided by a socialized system is almost certainly irrelevant. There
exist other, better and fairer mechanisms to provide healthcare, especially to
those in genuine need.
_Edited_ : to put it another way, imagine if you lived in a country with
socialized car mechanics. You could easily make the claim that the only thing
keeping you on the road was your good comrades at State Autoworks ...
~~~
kefka
That's right, the capitalist-libertarian answer is always "Fuck you, pay me",
or in this case, "fuck you, die".
We have insurance. Its a great way to leverage the group so that all get a low
rate. That given, "socialized" medicine is a group policy population wide:
which should give the lowest rates split equally between all. Certainly makes
the most sense.
~~~
duncan_bayne
Further to this, in Rand's words:
=====
“Dear [socialists], our objective, like yours, is the welfare of the poor,
more general wealth, and a higher standard of living for everybody—so please
let us capitalists function, because the capitalist system will achieve all
these objectives for you. It is in fact the only system that can achieve
them.”
This last statement is true and has been proved and demonstrated in history,
and yet it has not and will not win converts to the capitalist system. Because
the above argument is self-contradictory. It is not the purpose of the
capitalist system to cater to the welfare of the poor; it is not the purpose
of a capitalist enterpriser to spread social benefits; an industrialist does
not operate a factory for the purpose of providing jobs for his workers. A
capitalist system could not function on such a premise.
=====
~~~
dragonwriter
> This last statement is true and has been proved and demonstrated in history
On the contrary, that last statement is false, which has been demonstrated in
history, and is largely why the system for which the term "capitalism" was
coined is no longer the dominant system of the developed world, having been
replaced by mixed economies -- which transition Rand was part of the rear
guard arguing against, and to reverse -- which retain in outline the property
structure of capitalism, but import many aspects of socialism to deal better
with exactly those problems than capitalism ever did.
~~~
duncan_bayne
"... which retain in outline the property structure of capitalism, but import
many aspects of socialism to deal better with exactly those problems than
capitalism ever did."
That's a contradiction. You can't have both the property structure of
capitalism, and state socialism. You have to violate the former to achieve the
latter. I'd argue that current systems _claim_ to keep the structure of the
former, but violate it at will.
In terms of dealing better with the provision of healthcare than capitalism
... have you _seen_ the state of the American healthcare system recently?
~~~
dragonwriter
Yes, US healthcare sucks, but is still-- despite being less universal and less
efficient than that of any other modern advanced economy (all of which are
also mixed economies) -- better than anything that existed anywhere when
capitalism was the dominant model, and not just due to (non-social) technical
advances.
Of course, the US has adopted, in many areas and healthcare particularly, less
elements of socialism than other advanced mixed economies. So maybe there's a
reason US healthcare sucks so hard, and its not insufficient devotion to
capitalism.
~~~
duncan_bayne
"So maybe there's a reason US healthcare sucks so hard, and its not
insufficient devotion to capitalism."
The list of problems that the previous poster provided were almost all (
_especially_ cronyism and cartels) characteristics of systems _other_ than
capitalism.
Is it possible we're using different definitions of capitalism, here? I think
you might mean crony-capitalism, a.k.a. fascism.
~~~
dragonwriter
I mean the real economic system that was dominant in the developed world from
the late 19th to early 20th Century, which certain of its socialist critics
created the word "capitalism" to refer to, since criticising it without a name
was problematic, and it was an economic system by which property arrangements,
policy, etc., were organized around the interests of the capitalist class.
Cronyism and cartels were certainly not infrequent features of that system.
Fascism is something different and newer.
~~~
duncan_bayne
... which was also the system that produced _this_ :
[http://crfblog.org/wp-
content/uploads/2010/03/2007112238img1...](http://crfblog.org/wp-
content/uploads/2010/03/2007112238img1.gif)
Sure, there were problems. Abuses of power, cronyism, etc. But capitalism
quite literally rescued the world from poverty, and continues to do so:
[http://cdn.theatlantic.com/assets/media/img/posts/wordpovert...](http://cdn.theatlantic.com/assets/media/img/posts/wordpoverty2-600x387.jpg)
------
lordnacho
How is it possible that the real emission is 40x the allowed limit? Wouldn't
you see VW being the only manufacturer under the limit, and everyone else
unable to get the car approved? Or alternatively, everyone is cheating?
Because you can imagine a world where some firms cheat to get 10-20-30% less
than rated, so that they're in line with the industry.
But if VW's normal car is 40x worse than advertised, and most cars were close
to the correct standard, wouldn't they just hire a guy who knew how to fix
their cars? Did VW's internal testing test competitors' cars?
Is this going to explode across the industry?
Also, this isn't the only kind of test that a car goes through. There's crash
tests, MPG tests, and all sorts of things that I wouldn't know about. If you
can game an emissions test, you can game the crash test and the MPG test,
which are probably both things people care about a fair bit more than
emissions.
~~~
joshmoz
When I was car shopping the VW diesel numbers, for tdi sportwagen in
particular, were impressive. Nothing else came close to VW's combination of
power, space, and mileage. Now maybe there are people who know more about cars
than I do and can dispute that, but that was my perception a couple of years
ago.
If I were the other car companies, I'd want to know exactly how VW was pulling
that off. They must have looked into it, and surely they're not as easily
misled as I apparently was (how would I know if VW was outright lying about
the car?).
This suggests to me that the other car companies must have known that VW was
doing something wrong. The fact that they didn't rat VW out suggests to me
that they were either doing the same thing (maybe not as aggressively as VW)
or they hoped to get away with the same thing. The former seems more likely,
and if that's true then I expect this to spread beyond VW soon.
~~~
Nelson69
VW has also built a huge reputation on diesel. They go and win Le Mans with
diesels. They have a giant budget and research ability. They've pushed diesel
forward in a lot of ways.
Maybe the others knew they were cheating, I can't imagine that it wouldn't
leak out some how. I also can't imagine how you wouldn't go buy a hundred VWs
and meticulously take them apart and understand them after getting brutalized
in the diesel market.
With mid-sized and heavy trucks, there is an entire subculture of guys that
mod them for "more power" and such. There is a little industry built on it and
nearly a religion surrounding the "better mileage" and "more power." Some of
the systems and devices are sophisticated enough that they have integrated
on/off switches for passing smog tests and such. If we really really cared
about it, that would be illegal, there would be much more stringent emissions
testing more frequently.
I'm of the belief that the regulators knew or suspected there was some
cheating but it's political to make waves.
~~~
CamperBob2
_I also can 't imagine how you wouldn't go buy a hundred VWs and meticulously
take them apart and understand them after getting brutalized in the diesel
market._
This is exactly how the auto industry works, contrary to the uninformed
person(s) who modded you down. People should refrain from moderating posts
from users who actually know what they're talking about.
For example, the first thing GM did when they began work on the current-
generation Corvette was buy a Porsche 911 (from Volkswagen, no less) and study
it in detail. This is an objective fact by GM's own admission
([http://www.edmunds.com/porsche/911/2013/comparison-
test.html](http://www.edmunds.com/porsche/911/2013/comparison-test.html)).
Competitive analysis is a key engineering strategy, no less important than any
other.
It's inconceivable that other manufacturers weren't aware of exactly how VW's
seemingly-impossible engineering worked. The only question is why _they_
didn't rat them out to the EPA.
~~~
henrikschroder
> It's inconceivable that other manufacturers weren't aware of exactly how
> VW's seemingly-impossible engineering worked. The only question is why they
> didn't rat them out to the EPA.
Everyone cheats, and preserving status quo is in the best interest of
everyone.
~~~
SapphireSun
What worries me is that if this explodes across the industry, the common
refrain will become that EPA guidelines are unrealistic and that's why
everyone is cheating. Just what we need as the world is coming around to
direly needed environmental regulation.
------
codeshaman
As I'm observing this scandal unfold, I find it amusing that all the eyes are
on the VW company and how it affects it's finances, it's reputation, etc
While the effects on the company are extreme, I think we should also consider
the broader and ultimate consequences of this trickery.
The fact that those cars pollute a lot more than officially acknowledged. I've
read figures like 40x as much.
Does that make those 11 million VW cars caught cheating the politically
accepted pollution equivalent of 440 million cars ?
Another interesting question - if VW was caught doing it, who else is doing it
?
And if other companies (and factories, etc) are doing it, what is the purpose
of the international pollution treaties ? How does it affect the plans to
reduce pollution, given that the numbers that we base our calculations on
might be off by factors of 40x ?
~~~
rcthompson
Nitrous oxide is about 300x more potent a greenhouse gas than CO2[1]. It also
depletes the ozone layer. So yes, this could be a major issue for climate
change.
[1]
[https://en.wikipedia.org/wiki/Nitrous_oxide](https://en.wikipedia.org/wiki/Nitrous_oxide)
~~~
refurb
Is nitrous oxide a major component of the nitrogen oxides from car exhaust? I
thought it was mostly nitrogen dioxide (NO2)and dinitrogen tetroxide (N2O4).
I haven't heard of nitrous oxide (N2O) being much of a concern.
------
hackuser
Will the EPA and other automotive regulators test other brands for similar
problems? Perhaps this practice is widespread. Testing them seems obvious, but
I know little about how regulators work.
EDIT: VW isn't the first. From the other story on HN's front page right now
[1]
_[Caterpillar Inc and Cummins Engine Co] agreed to pay $83.4 million in civil
penalties after federal officials found evidence that they were selling heavy
duty diesel engines equipped with “defeat devices” that allowed the engines to
meet EPA emission standards during testing but disabled the emission control
system during normal highway driving._
[1]
[https://news.ycombinator.com/item?id=10264894](https://news.ycombinator.com/item?id=10264894)
EDIT2: On queue, from the NY Times: "Volkswagen Test Rigging Follows a Long
Auto Industry Pattern"
[http://www.nytimes.com/2015/09/24/business/international/vol...](http://www.nytimes.com/2015/09/24/business/international/volkswagen-
test-rigging-follows-a-long-auto-industry-pattern.html)
~~~
Shivetya
The EPA has already stated that all diesel passenger cars will be retested. I
think all cars should go through the same complete testing process and by more
than one organizations.
The EPA didn't find this issue, a university testing team did
~~~
e40
Does anyone know how the test was detected? I'm thinking they noticed either
the revving of the engine without the wheels turning or just one set of wheels
were turning.
Hopefully the EPA will test in a real situation, by attaching the test
equipment to the car and actually driving it. That should foil the cheaters.
~~~
tzs
From the EPA's description: "The 'switch' senses whether the vehicle is being
tested or not based on various inputs including the position of the steering
wheel, vehicle speed, the duration of the engine's operation, and barometric
pressure. These inputs precisely track the parameters of the federal test
procedure used for emission testing for EPA certification purposes."
Somewhere I saw a description of the EPA test procedure. It is not just a
simple small set of test points. It is a long sequence of operations, calling
for specific speeds and durations and rates of change simulating a variety of
operating conditions ranging from a wide open freeway to a New York City
traffic jam. I believe I read that the order of the various test segments
might change from test to test, but each segment's parameters were very
strict.
~~~
tlb
But keep in mind it has to detect the test pretty early. Because non-test-mode
emissions are 40x, it has to detect it well before 1/40th of the test is over
or it will dominate the average.
You can see the test schedule at [http://www.ecfr.gov/cgi-bin/text-
idx?SID=457ac7ef4b94883cc2c...](http://www.ecfr.gov/cgi-bin/text-
idx?SID=457ac7ef4b94883cc2c6bdca43e80640&mc=true&node=ap40.19.86_11931_686_11999.i&rgn=div9).
It starts with 21 seconds of warm-up at zero speed, which is probably unusual
for real drivers.
~~~
marincounty
The engineer/engineers who pulled this off were pretty slick. I don't condone
the cheat, but I am still trying to figure out how they turned on specific
emmissions devises, or fooled with pulse cycles, etc.
I have a weird feeling it wasn't fool proof, and they're a bunch of VW owners
who failed smog? They brought the auto back, or to a different shop and the
code somehow turned on the right components, leaned out injectors, etc? The
problem is the customer had to pay for this slick trick. These smog tests are
not cheap in my neck of the woods. Every two years, I end up paying close to
$100. They always try to nail me with the "leaky" fuel cap. I just keep a new
one in the back storage area, and bring it out at the right time. I'm an ex-
mechanic so my vechicle always pass the emmission test, but boy, I have had
problems with the visual test.
While I'm here, some of us drive older cars, for a long time. Smog shops in
California are required to have one copy of an Emissions Publication. Most use
use Motor Publications. That manual is filled with errors. It's is the
cheapest emmission manual on the market.
If you happen to fail a visual smog test, go to a smog shop that has access to
Mitchell Emission Smog manuals(OnDemand5). I have yet to find an error in
Mitchell manuals.
(The only reason so many smog shops only buy the Motor publications is because
they are cheap. Any Smog technician will tell you they have found multiple
errors in Motor Emission Publications. Vechicle owners don't have a clue to
this problem, and are just sent home with a failed Smog test, or end up
spending a day taking to CARB--just praying they will get an exemption. All of
this is due to errors in Motor Emission Publications.)
------
harryh
Two things that are surprising to me about this story:
1) The secret was kept for so long. How many programmers were involved with
the relevant code? How many project managers signed off on it? Surely VW does
its own emissions testing internally so some of them must have known. How high
up in management did this go? It seems like it must have been quite a few.
Amazing that none of them got mad and told someone outside the company.
2) I would never have guessed that emissions from a car engine could vary so
widely. 20%? Sure. 50%? Sure. But news outlets are reporting that these cars
are emitting at least 10x and possibly as much as 40x NOx as they should. This
is clearly because of my ignorance of the details of the engineering here, but
I was shocked that such a difference could happen.
~~~
hackuser
> The secret was kept for so long. How many programmers were involved with the
> relevant code? How many project managers signed off on it? Surely VW does
> its own emissions testing internally so some of them must have known. How
> high up in management did this go? It seems like it must have been quite a
> few. Amazing that none of them got mad and told someone outside the company.
We should not be surprised; we need to learn to expect it and manage that
risk. Institutions of all types have long histories of such conspiracies to
cover illicit activity. Think of the many recent financial industry scandals,
the Catholic Church (and Penn State University) covering widespread rape of
children, various military scandals, US government spying on citizens, IT
companies spying on their users, performance enhancing drugs in baseball ...
in fact we should be surprised when someone steps forward.
The #1 rule of any institution is loyalty. Rape will be covered for; blowing
the whistle is a mortal sin. It shouldn't be that way but we can't deal with
these problems until we accept that it's human nature, at least in certain
situations.
EDIT: I don't mean to preach. A certain part of me is always surprised too.
~~~
notvladputin
The used of PEDs in baseball was a well known issue dating back to the 1980s.
Players, front office types, writers, and anyone in the public paying
attention knew about it. I can't comment on the other items, but it's pretty
clear that everyone knew about PEDs but just didn't care enough to ban them.
(That said, my personal opinion is that steroid testing done in baseball is
much more about using the issue as a wedge to weaken the MLB Players
Association, rather than "fixing" the game.)
~~~
hackuser
I don't agree: Back then I was a very knowledgable baseball fan (I probably
could have named almost every player on every team) and I didn't know. I heard
occasional rumors but nothing more persuasive than that, and nothing at all
which indicated, in any convincing way, how widespread it was. When Jose
Conseco talked about it, he was ridiculed as a nutcase and shunned (as
expected; see my comment above about loyalty).
I remember when home runs and offense increased dramatically, to record
levels, and everyone was saying that the ball was juiced - nobody suspected it
was the players who were juiced.
~~~
notvladputin
In 1991, the commissioner tried to institute a policy banning steroids. He
didn't have the authority, so it was no different than if I tried to write
that. But it's a clear indication that MLB was aware of the steroid problem
and tried taking a small step to fix it.
Regarding the "players being juiced", it's never been shown that juiced
players performed better. There have been a number of studies comparing
players who were caught using PEDs, before and after, comparing to clean
players, etc. None of them show any indication that taking steroids helped
players perform better on the field.
If you look at the power-on-contact or ISO of players across periods (the 90s,
00s, current game), you find that there is just as much power on contact in
the game now as before. The different is strikeouts, which is clearly tied to
strike zone enforcement and some other tradeoffs hitters are making now that
teams understand strikeouts are fine if you have power.
I apologize if my tone has some frustration in it, but my pet peeve is people
saying that steroids = strength = McGwire hit ball far. The reality is far
more nuanced, and if you are able to come into the analyses without
preconceived conclusions, it's pretty clear that the 'steroid slugger' era
happened to overlap with the power era, but it does not appear to have driven
the higher rate of home runs and offense during the time.
~~~
hackuser
I don't know about studies, but the evidence is strong. Let's look at home
runs:
* Since 1920 [1], excluding the PED era, only twice have players hit 60 or more home runs in a season and both barely passed the threshold: Babe Ruth hit 60 in 1927 and Roger Maris hit 61 in 1961.
* In the 4 years from 1998 to 2001, the feat was accomplished 6 times by 3 different players (2 very strongly associated with PEDs, the other widely supsected of it), many blowing away the former threshold, hitting 73, 70, 66, 65, 64, and 63 home runs.
* Since PEDs were banned in baseball, only one player has hit more than 55 home runs in a season.
[1] 1920 is when hitters embraced the modern strategy of trying to hit home
runs, led by innovator Babe Ruth. Before that, a period called the 'Dead Ball
Era', they generally just tried to get any hit they could and home runs were
much more rare. Also, there were technological and rule changes which may have
facillitated home run hitting. Before 1919 players regularly led the league
with 10-15 home runs; in 1919 Ruth hit 29, a record at the time and more than
most entire teams hit; in 1920 he hit 54.
~~~
notvladputin
The problem with this type of evidence is that it assumes the single change in
the game was the presence or absence of steroids. To learn more from the data,
check out the references I included at the bottom. The TL;DR is that there is
no compelling statistical evidence that suggests steroids impacted homers, or
offense in general.
The facile argument fails to address the fact that the game underwent
expansion (weakening the average pitcher). The strike zone was changed a
number of times (if you normalize for strikeout rate, the power in today's MLB
is the same as in the 90s). Umpires got a lot better once PitchFX was able
provide them feedback. (Lots were let go as well). Colorado started using a
humidor, reducing home runs at the greatest hitters park of all time.
There's not really any way of knowing who did or did not use. MLB and
mainstream sports media "strongly suspected" PED usage is closer to HUAC
findings than real evidence. Also, it doesn't acknowledge the fact that a lot
of pitchers were found using PEDs.
In short, it's incredibly facile to look at some superficial stats and hints
of suspicion in order to reach the "steroids = homers" conclusion. But when
you look at the underlying component numbers and adjust for the changing
environment in the game, there is no evidence to support that conclusion.
(That does not mean steroids had no effect, just that we cannot detect them
with our best efforts.)
Here's an incredibly strong counter argument from Joe Sheehan's paywalled
newsletter [I added it to pastebin for reference, I doubt Joe will mind].
[http://pastebin.com/DXW0HSSt](http://pastebin.com/DXW0HSSt)
Dan Szymborski is one of the top baseball data analysts in the country. From
[0] (paywall) "Despite the rhetoric surrounding PEDs, players caught for
steroid/testosterone use do not show a pattern of overperforming their
projections in the years leading up to the drug suspension or a pattern of
underperforming their projections in the years after a drug suspension."
In layman's terms, if all you knew about players the past 10-15 years was
their past OPS+ and whether they were busted for steroids -- now or at any
time in the past -- it appears the PEDs had no noticeable effect on the
projection of their future OPS+.
What this means is that, even with the knowledge of what outliers such as
Barry Bonds accomplished while allegedly using performance-enhancing drugs, as
a whole, there's extremely limited evidence of a significant effect on
statistics of the drug users as whole. And without double-blind research
studies of PED use among major leaguers and/or detailed information of what
players are using, all we have to go by so far is the bottom-line results.
Now, none of this should be taken as endorsing the idea that MLB should simply
open the floodgates and allow players to do whatever they want. Instituting
drug testing is a very good thing for the sport -- but that improvement is for
reasons other than the record books, such as the long-term health of players
and the public trust. As far as the record books being tainted by PED use,
well, it appears there isn't much evidence of that."
[0]
[http://insider.espn.go.com/mlb/insider/story/_/id/10922627/m...](http://insider.espn.go.com/mlb/insider/story/_/id/10922627/melky-
cabrera-strong-start-helps-demonstrate-why-peds-really-enhance-performance-
mlb)
------
korisnik
Somewhat relevant, allegations have come out that the German government was
aware of VW cheating on emissions tests
[http://www.independent.ie/world-news/volkswagen-scandal-
germ...](http://www.independent.ie/world-news/volkswagen-scandal-german-
government-accused-of-covering-up-rigged-emissions-data-31552152.html)
~~~
yc1010
I am currently shopping for a car and now need to keep in mind which
brands/models are affected by this fiasco as another factor in my shopping.
Here in Ireland motor tax is based on CO2 emissions
I can see some very very unhappy VW drivers in this country in coming months
if their tax suddenly jumps by an order of magnitude due to this avoidance
scheme putting these cars into the high emission bands
I do wonder how Revenue will handle this, not only some people might find
themselves with a more polluting car but a larger and unexpected tax bill will
impact peoples pockets directly.
~~~
organsnyder
The CO2 amount should remain the same—the issue is with other pollutants that
cause smog. The only reason that CO2 might go up is if the fix involves
increasing fuel consumption. However, you might not even need the fix in
Ireland, as many European countries (as I understand it) have laxer smog
requirements to begin with.
Regardless, though, I wouldn't buy a VW product right now, wherever I lived.
~~~
tadfisher
Euro standards are backwards; they have stricter CO2 emissions regulations,
but are lax on NOx. I'd imagine they don't have a lot of smog events like what
happened in California during the 60s and 70s.
~~~
organsnyder
I wouldn't call them "backwards". They're opposite of the US, but that's
because they're optimizing for reducing a different pollutant. Smog is
certainly undesirable (as an asthmatic, I know that from experience), but CO2
may well have more dire long-term costs.
Of course, the optimal situation would be to tightly regulate both pollutants.
~~~
ars
I would definitely call them backwards.
The amount of extra CO2 from a car running a better NoX system is utterly
irrelevant compared to how much CO2 is emitted.
Trading CO2 for NoX is completely indefensible. NoX is really really bad for
the environment.
------
WalterBright
The emissions standards are particularly inefficient. They say things like
emitting 101ppm is bad and 100 ppm is good. But pollution isn't like that.
A much more practical solution is to annually measure the pollution emitted,
multiply by the number of miles driven in the last year, and multiply by the
tax rate.
What this does is:
1\. cause the consumer to care about the emissions 2\. introduce competition
to have better numbers, rather than merely meeting the standard 3\. enable
higher polluting occasional uses rather than banning them outright
------
ArkyBeagle
Other than border disputes, when has _measurement_ been a political football
before? The nerd in me is happy about this, but the rest of me is kinda ...
sad.
It's also interesting that there appears to be a tradeoff between NOx and CO2
here.
IMO, VW sort of ... prematurely fell on the grenade in a PR way of thinking
about it. Actually proving it as fraud would have taken some doing. Admitting
it up front does not have clear advantages that I see. If we use the GM
keyswitch debacle as a yardstick, there's evidence than being a cheeseball is
rewarded. GM managed to constrain the damage to $99M .
Not saying anyone did the right thing here, but the adversarial approach has
consequences.
~~~
ZeroGravitas
They appear to have been denying it for a year at this point, before they
admitted it. So presumably something happened in that period of time that made
them calculate that admitting it now was better than continuing to deny it.
~~~
whatthesmack
I don't recall where I saw it, but there was mention of 2016 VW TDI models not
getting road certification until the issue was dealt with. Maybe this was
incentive for VW to come clean.
------
DrNuke
Problem is they've got the money and the market, CEO can't resign and get away
with it, they should pay back all plus a hefty fine. This is much too common
nowadays, big corps have no face and are too big to fail, no one is directly
accountable and geopolitics are at stake. Hit them hard in the monies, would
say, but the risk is fear and a market bubble.
------
floor__
As bad as it is to screw the environment.. I am still shocked by all the out
rage coming from countries. Its like everyone forgot GM knowingly left faulty
parts that were killing people for 10 years. This entire thing seems so
political.
~~~
InclinedPlane
Diesel pollution is deadly. And it seems that more people at a higher level
are complicit in this scandal than in the GM one.
Besides which, what does it matter how bad GM was? This scandal stands on its
own.
[https://en.wikipedia.org/wiki/Tu_quoque](https://en.wikipedia.org/wiki/Tu_quoque)
~~~
floor__
Yeah that is kinda my point. I am upset that GM wasn't held to this standard
of accountability or any other car company for that matter. I agree with you
that this one is as bad or worse.
------
JustSomeNobody
Really? 11M vehicles affected and you knew nothing about it and you simply get
to resign?
I'm growing more and more disappointed in the world we are living in.
------
hodder
[1] Winterkorn studied metallurgy and metal physics at the University of
Stuttgart from 1966 to 1973. From 1973 to 1977 he was a PhD student at the
Max-Planck-Institute for Metal Research and Metal Physics, where he received
his doctorate in 1977.
Winterkorn embarked on his career in 1977, as a specialist assistant in the
research division "Process Engineering" at Robert Bosch GmbH.[4] From 1978 to
1981, he headed the refrigerant compressor development group "Substances and
Processes" at Robert Bosch and Bosch-Siemens-Hausgeräte GmbH.
[1]
[https://en.wikipedia.org/wiki/Martin_Winterkorn](https://en.wikipedia.org/wiki/Martin_Winterkorn)
------
jhallenworld
I wish this scandal would somehow add pressure to clean up ship and truck
pollution. VW is having severe consequences, but their contribution to the
problem might not be that significant:
[http://www.theguardian.com/environment/2009/apr/09/shipping-...](http://www.theguardian.com/environment/2009/apr/09/shipping-
pollution)
[http://www.ucsusa.org/clean-vehicles/california-and-
western-...](http://www.ucsusa.org/clean-vehicles/california-and-western-
states/diesel-trucks-air-pollution.html)
------
deegles
I'm expecting a snarky press release from Tesla any moment now...
~~~
TeMPOraL
They'll probably start installing NOx emitters in their cars - with defeat
devices that will make them active only during tests) - in order to bring
Teslas in line with the rest of the industry.
------
Scramblejams
He was only in his job for about 5 months, but I'm not familiar with his
previous work history at VW. Was he in some significant sense responsible for
the scandal by way of his prior responsibilities? Or is his resignation, for
lack of a better way I can think of to put it, an honor move?
Edit: Thanks for the clarifications, all. Although he assumed Ferdinand
Piëch's former position as chairman in April 2015, he was VW's CEO since 2007.
~~~
pc86
He has said publicly that he is not aware of any wrong-doing on his part. I
imagine that just about any board would require just about any CEO to resign
after something like this, though.
~~~
Scramblejams
When it comes to a relatively new CEO, I'm not so sure about that. GM didn't
require Mary Barra's resignation over the ignition switch scandal, for
example. (Though admittedly that one was smaller than VW's.)
Edit: Winterkorn took over as chairman of the supervisory board of VW in
April, but as petewailes pointed out, he's been CEO since 2007, so his
resignation makes more sense.
~~~
JoeAltmaier
Is it the difference between deliberate/undefendable and simple cost savings?
I'm not very familiar with the switch issue.
------
arbuge
There is usually more than one cockroach in the kitchen if you spot one. I
wonder how many other aspects of their software they messed with in ways they
probably shouldn't have...
------
largote
What surprises me is that VW thought they wouldn't be caught doing this, it
took a while but it seems like sooner or later someone would figure it out.
------
jschulenklopper
Well, you could say that Volkswagen implemented an A/B test on the emission
control, but with an unfortunate population segmentation.
------
gherkin0
Does anyone have an technical details on what their "defeat device" was
actually doing (like what systems it was disabling)?
~~~
thrownaway2424
It doesn't disable anything, it just uses a different engine management map
that runs the engine hotter or leaner (probably both) to get more power and
better fuel economy while producing more NOx.
------
emodendroket
I just can't see how someone sits down and green-lights this decision. It
seems like it'd be sure to come out eventually.
~~~
jtriangle
It's market demand for efficient yet sporty cars. They saw a market and made
their cars dominate that market. To that end they were wildly successful, so
if you set aside any ideological barriers that would speak against creating
more pollution than is allowed, it's a fairly logical decision.
~~~
emodendroket
Yes, but what's not logical is cheating by means that seem so blatant as to be
sure to be discovered and potentially vaporizing all the gains you made by
cheating in the first place.
~~~
jtriangle
Weirdly enough, it wasn't the EPA that caught them, so they were doing a good
job hiding it from the people that are in charge of finding these things out.
So you could say, they would have gotten away with it if it weren't for those
meddling kids!
------
twblalock
I would be very surprised if VW was the only company that did this.
I hope this is a catalyst for the EPA to change to real-world emissions
testing.
~~~
Kenji
'a catalyst for [...] emissions testing'
Hahaha, that is a fantastic pun that lightens up the mood of this comment
section.
------
mtgx
And if all of that wasn't bad enough to make you dislike VW, they've now hired
BP oil spill lawyers to defend them:
[http://www.theguardian.com/business/2015/sep/23/volkswagen-h...](http://www.theguardian.com/business/2015/sep/23/volkswagen-
hires-kirkland-ellis-to-defend-emissions-cases)
~~~
ArkyBeagle
Well, yeah.
------
paulojreis
Is he going to jail?
------
iamleppert
I think someone at the EPA should be held liable for their lousy testing
practices. They test cars on a dyno, which is far from real-world testing.
They would have easily caught this if they tested cars in the way and same
environment that they are driven.
I fully expect corporations to try and skirt the law whenever possible, that's
why we have institutions like the EPA. Their practices need to be sound and
tamper-proof. It's not impossible. It's engineering 101.
The head of the EPA should resign in disgrace for letting this situation get
this far.
~~~
robwilliams
I mean, they caught it. This is a win for the EPA.
~~~
setpatchaddress
Well, they didn't catch it, but when it was brought to their attention, they
verified it and went after VW. This exposed a gap in their their testing
practices, but the overall process certainly worked as it should.
------
simi_
Edit: Thank you for the several downvotes.
I initially wrote a stupid rant based on this [0] about how VW's ex-CEO
doesn't speak English, but a quick Youtube search proved that was wrong [1].
Oops!
I'll just leave some quick facts that I dug up in the process:
* VW just had another scandal that made it to HN recently, regarding hiding security vulnerabilities [2]
* VW Group numbers for 2014: €204B of which €12.7B revenue, 583k employees [3]
* the board made some weird-ass declarations about the ex-CEO [4]
My confidence in VW is shaken to the point that I'll never buy another car
from them again (I didn't like how they artificially segment the market by
owning Audi/VW/Skoda/etc anyway), but how do other German manufacturers
compare? [5]
0: [http://www.theverge.com/2015/9/17/9347275/auto-industry-
meet...](http://www.theverge.com/2015/9/17/9347275/auto-industry-meet-the-
apple-effect)
1:
[https://www.youtube.com/watch?v=sEPJluU09RU](https://www.youtube.com/watch?v=sEPJluU09RU)
2: [http://www.bloomberg.com/news/articles/2015-08-14/vw-has-
spe...](http://www.bloomberg.com/news/articles/2015-08-14/vw-has-spent-two-
years-trying-to-hide-a-big-security-flaw)
3:
[https://en.wikipedia.org/wiki/Volkswagen_Group](https://en.wikipedia.org/wiki/Volkswagen_Group)
4: [http://www.theverge.com/2015/9/23/9383835/volkswagen-
board-s...](http://www.theverge.com/2015/9/23/9383835/volkswagen-board-
statement-diesel-scandal)
5: [http://finance.yahoo.com/news/volkswagen-may-not-only-
car-18...](http://finance.yahoo.com/news/volkswagen-may-not-only-
car-185400060.html)
~~~
mason55
> _I didn 't like how they artificially segment the market by owning
> Audi/VW/Skoda/etc anyway_
How is this different from Honda/Acura, GM/Cadillac, or Toyota/Lexus?
~~~
joezydeco
Not just GM/Cadillac, but GM/Chevrolet/Buick/GMC/Opel/Vauxhall/Holden/Cadillac
~~~
function_seven
I miss the old days:
GM/Chevrolet/Buick/GMC/Opel/Vauxhall/Holden/Cadillac/Oldsmobile/Pontiac/Hummer/Saturn/Saab
~~~
joezydeco
What, no love for Geo? =)
~~~
ams6110
Those were actually Toyotas.
~~~
joezydeco
More than Toyotas...
"Geo models were manufactured by GM in joint ventures with three Japanese
automakers. The Prizm was produced at the GM/Toyota joint-venture NUMMI
assembly plant in Fremont, California, and the Metro and Tracker were produced
at the GM/Suzuki joint-venture CAMI assembly plant in Ingersoll, Ontario. The
exceptions, the Spectrum and Storm, were entirely manufactured by Isuzu in
Japan. Geo Metro convertibles and early Geo Trackers were built by Suzuki in
Japan."
Postscript: The NUMMI plant is now owned by Tesla.
------
vaadu
GM killed more than 100 people with a known defective ignition switch.
Volkswagen killed ... the air.
Guess which company will get the greater penalty from the US government?
BTW, GM spends significantly more on lobbying and campaign contributions to
political candidates.
Source: OpenSecrets <a
href="[https://www.opensecrets.org/orgs/summary.php?id=D000042113&a...](https://www.opensecrets.org/orgs/summary.php?id=D000042113&cycle=A">Volkswagen</a>)
and <a
href="[https://www.opensecrets.org/orgs/summary.php?id=D000000155&a...](https://www.opensecrets.org/orgs/summary.php?id=D000000155&cycle=A">GM</a>)
~~~
jeromeflipo
Seriously? Just in France, diesel emissions kill 42,000 persons every year
[0]. In California, they kill at 1,500 to 2,400 people a year [1].
It might be possible that these estimations rely on measurements communicated
by the manufacturers (i.e underestimated by 40x)!
[0]
[http://www.lemonde.fr/sante/article/2013/03/02/diesel-42000-...](http://www.lemonde.fr/sante/article/2013/03/02/diesel-42000-morts-
prematurees-chaque-annee-en-france_1841726_1651302.html)
[1] [http://www.arb.ca.gov/research/diesel/diesel-
health.htm](http://www.arb.ca.gov/research/diesel/diesel-health.htm)
~~~
happyscrappy
European cities have much worse air pollution than American ones because they
went with diesels instead of hybrids in an attempt to be more green and partly
because of German auto lobbying.
| {
"pile_set_name": "HackerNews"
} |
Google Drives Towards Microsoft and Adobe With Gears - ideas101
http://www.techcrunch.com/2008/06/13/google-drives-towards-microsoft-and-adobe-with-gears/
======
ComputerGuru
Only problem: Google doesn't support x64 Linux installations.
[http://code.google.com/support/bin/answer.py?answer=83194...](http://code.google.com/support/bin/answer.py?answer=83194&topic=11691)
(note that the nspluginwrapper link on their site doesn't work for Gears - it
was reported by a poster on a mailing list as working, but future posts
confirmed it doesn't do the trick)
...whereas both Flash and Moonlight work quite well on x64 now (nevermind the
past).
------
ph0rque
This article helped me refine an idea that's been sloshing around in my semi-
subconscious for a while: a server-side plugin that lets the designer write
100% standards-compliant CSS, and it would be "compiled" to whatever is needed
for various quirky browsers requesting to see the particular page... is this
feasible?
~~~
jsjenkins168
You are partially describing what GWT does. Except that it doesnt do much
special in the way of CSS yet...
But in terms of Javascript/HTML/AJAX, it compiles separate versions for each
browser (which are automatically loaded), virtually eliminating the need to
handle various quirky browser behaviors. And any standard Java app server
works fine for the server side, nothing special needed there.
| {
"pile_set_name": "HackerNews"
} |
Ask HN: Managed VPS or shared hosting? - maxraz
For a non-server guy, I'm quite comfortable with cPanel on shared hosting (I can add domains, set up an email and SSL). So I want to ask you if a managed VPS with free cPanel included can be also easy to handle for a simple designer?<p>I don't even know what is LAMP is, and it seems to me this one is not installed...<p>Can I make this move, as I need more resources for my site? Thank you for advance.
======
tmaly
I use both, but if your a non-server guy, your going to have a learning curve
if you want to use a VPS.
~~~
maxraz
Thank you, Sir!
------
maxraz
I tried already a VPS, it's not for me - too hard. But recently I've heard
about managed VPS with free cPanel, that's why I had this idea.
| {
"pile_set_name": "HackerNews"
} |
Ask HN: Who is Hiring? (March 2011) - kevinburke
Did I miss this thread somehow?<p>Full time positions only and please lead with the location.<p>Thread for remote workers:
http://news.ycombinator.com/item?id=2216921<p>Thread for internships:
http://news.ycombinator.com/item?id=2273865<p>Thanks!
======
robinwarren
There is this one which seems the most popular at the moment. Put your weight
behind that and see if we can get it where more people will see it.
<http://news.ycombinator.com/item?id=2270790>
| {
"pile_set_name": "HackerNews"
} |
State.of.dev – Explore the current state of development - carlio
https://stateofdev.com/home/
======
BrandiATMuhkuh
Your SEO chart pretty much confirms my strategies. It's all about the incoming
links and disavow links. Looks like really useful info overall, thanks.
| {
"pile_set_name": "HackerNews"
} |
Real-time sentiment analysis of the debate - nikita
http://election.memsql.com/
======
grzm
Interesting! I wonder how well VADER handles tweets. Is there a lot of sarcasm
in 140 characters? Reminds me of the vector space mathematics post from a a
couple of days ago.
[https://news.ycombinator.com/item?id=12714406](https://news.ycombinator.com/item?id=12714406)
| {
"pile_set_name": "HackerNews"
} |
U.S. Warms Up Its Own Old Spy Stories to Bash Putative Chinese Espionage - cribbles
https://www.moonofalabama.org/2020/02/us-warms-up-old-spy-story-to-warn-of-foreign-espionage.html
======
java-man
This is the _real_ story.
| {
"pile_set_name": "HackerNews"
} |
Surfing, Schools and Jets: WeWork’s Bets Follow CEO Adam Neumann’s Passions - terryauerbach
https://www.wsj.com/articles/surfing-schools-and-jets-weworks-bets-follow-ceo-adam-neumanns-passions-11551787200
======
kolbe
[https://outline.com/tWd8Z4](https://outline.com/tWd8Z4)
| {
"pile_set_name": "HackerNews"
} |
Idea for the structure of a tutoring site - andrewmech55
I don't have any real coding ability and I certainly don't have time for a side project but I was hoping to get some feedback on an idea of mine:<p>Upon visiting the site you would be asked to register as a student or as a tutor. Upon registering as a tutor you would select your areas of expertise and take a few diagnostic tests, perhaps pulled from khan academy and other sites. You would be encouraged to buy a low cost usb writing pad to assist you in your teaching, and you would agree to accept no payment for your first 20 or so tutoring sessions. This is because you would be proving your abilities as a tutor to students who had agreed to do sessions with tutors of unproven ability (this would also serve as the free pricing tier). After each session the student would rate the tutor in several categories, allowing them to build up credibility and desirability among the students. Once they are proven the students who would like a more professional experience can submit reasonable payments before their session through stripe or some other simple payment system. The sessions look like a split screen with a video feed of the other person on one side and a virtual paper display on the other. Tutors can log in and do sessions with available students whenever they want, or students can subscribe to specific tutors at given times if both parties agree. I can see this having a problem with an initial lack of tutors/users and also a library of diagnostic tests would be difficult to build up since this idea isn't limited to standard subjects. I'd love to hear HN's ideas on this, thanks for reading.
======
dmils4
Make a few mockups dude! Even if you can't code, use microsoft paint or
whatever program you have - it'll help you clarify your own ideas of how the
product will work, but more than that, it'll give the people here something
more actionable to help you with!
I don't understand the "buy a low cost usb writing pad". Shouldn't be
necessary. But other than that, anything in the tutor providing space sounds
useful - there's a need there, and tons of companies trying to address it
(study aid sites like notehall/cramster, course management platforms like
piazza) that's more than enough validation to keep moving on it.
| {
"pile_set_name": "HackerNews"
} |
Employee retention rate at top tech companies - throwaway40483
http://www.businessinsider.com/employee-retention-rate-top-tech-companies-2017-8
======
mgiannopoulos
These seem very low, but how do they compare with other industries?
| {
"pile_set_name": "HackerNews"
} |
The traveling German carpenters - luccastera
http://blog.intellum.com/2011/04/traveling-german-carpenters.html
======
dylanz
My good friend is a journeyman, and I always wished there was a US equivalent,
especially in the realm of software engineering. I'm sure a lot of people
would enjoy coding with brilliant programmers and traveling around the
country.
Anecdotally speaking: My friend has a "wunderstick", which is a hand made
walking stick. When we go into bars in Germany, he taps it, and the bartender
gives us free drinks. Before we leave, he taps his stick again, and says some
big speech in German (about how grateful he is, etc). Most bars and hotels
cater to the journeymen quite well. While we were in Berlin, he also had girls
run across the street to him and kiss him on the cheek or lips. I guess it's
good luck to kiss a journeyman.
~~~
robyates
Actually, there are journeyman software developers. Here are some links:
1\. Corey Haines: <http://programmingtour.blogspot.com/>,
<http://www.coreyhaines.com/>, <http://www.coderetreat.com/>
2\. Journeyman Programmer Description: <http://teamdoty.us/journeymanwp/?p=4>
(from <http://www.thejourneymanprogrammer.org/>)
3\. Software Craftsmanship:
<http://en.wikipedia.org/wiki/Software_craftsmanship>,
<http://scna.softwarecraftsmanship.org/>,
<http://www.softwarecraftsmanship.org.uk/>
------
ugh
This article talks only about journeymen and women who are truly exotic and
rare but it doesn't really emphasize that vocational training — the
alternative to college — still is alive and well in Germany. You usually don't
got to college if you want to become a hairdresser or a mechatronic engineer.
After they finish school, the apprentices work three or four days per week at
some company and go to a vocational school the rest of the time.
~~~
zwieback
The German system indeed has a lot more options between a full blown academic
career to learning a craft in a structured 4 year program all the way to being
an unskilled laborer with 10 years of school.
The drawback is that career paths are also more structured than in the US and
take a long time. Want to start a painting business? Better get your
Meisterbrief first and that will take a good while.
Here in the US things are more fluid, which leads to people changing careers
and going back to school at a later age more willingly. The flipside is that
almost everyone is an amateur and quality of work varies wildly.
------
zinssmeister
Yeah I experienced this growing up as a kid in Germany. I remember these
people from other towns in their "strange" outfits. Over the years they got
less and less but you can still find a few.
Now living here in the U.S. I wonder how something like this would maybe
translate over to coders and designers in startups. Seeing that we have these
startup heavy areas across the country. Why not have people work a year in the
Valley, then move a year to NYC, followed by another year in Boston or Austin.
Would be a fun and rewarding program for young talent.
~~~
nir
No need for a program - you can just do it. Even go outside the US (some
countries have a work/holiday visa program, eg Australia). It's a great
learning experience.
~~~
zinssmeister
Yes of course one can just do it. But having a bit of an umbrella organization
around this would help get the word out.
~~~
plastics
What would we need to create one?
~~~
zinssmeister
I think the most critical step towards success of such a thing is getting a
few bigger companies in each of the startup areas to offer exclusive
intern/entry/mid-level positions to these kinds of people.
~~~
plastics
I guess a lot of hacker news reader work in said startup areas. So is anybody
willing to give it a shot?
I am located in Munich, Germany, not exactly a startup hup, but I have some
connections to Berlin and would be willing to annoy my contacts there until
they agree.
Also should the plans for my own company work out in the next months, I would
be willing to offer exclusive intern/entry/mid-level positions.
~~~
eru
I'm in Cambridge, UK, but come from Germany and have seen the Walz. I'd be
interested.
~~~
zinssmeister
I was born and raised in Germany as well but am now in Dallas getting ready to
move to Palo Alto.
Besides this digital Walz it might also be interesting to start a small
network for "Global German Tech Talent" or something. I know there are a few
germans in the Valley.
~~~
eru
That might actually work in practice. But in principle selecting on the basis
of nationality always sounds silly to me. (But I guess I'm just being a good
German here. Where not even our President is a patriot.)
------
intellectronica
It's worth keeping in mind that the travelling carpenters are a souvenir from
dark times in Europe, when economic progress remained extremely slow because
craftsmen were evaluated by their belonging to a guild and would not compete.
~~~
gwern
It's worth noting that those 'dark times' were periods of perfectly ordinary
economic growth compared to the rest of the world and all the millenniums
previous.
Comparing those times to the Industrial Revolution that came shortly after is
a little unfair - _no_ tradition or souvenir compares well.
~~~
roel_v
Eh, no. The first explosion of efficiency and economic prosperity was in Roman
times, when there was peace in much of Europe and cities flourished, complete
with sanitation systems, elaborate transportation networks etcetera.
When that crumbled, city states took over, and economic life was once again
dictated by the whims of rulers who in reality depended on keeping the ruling
classes of the cities in their empire happy; in these cities, tradesmen
classes operated in rigid, protectionist and mercantilist guild systems. There
was stagnation and in many fields enormous regression until the Enlightenment
and the Industrial Revolution (when freedom brought back the drive for
progress).
~~~
arihelgason
Exactly.
Economic activity centered on agriculture where efficiency increases were
minuscule. Because of this economic activity did not grow much.
See this diagram for an idea of just how little growth there was:
[http://en.wikipedia.org/wiki/File:World_GDP_Capita_1-2003_A....](http://en.wikipedia.org/wiki/File:World_GDP_Capita_1-2003_A.D.png)
~~~
gwern
On a small base (like a graph where the initial datapoints are less than
1/27th the ending datapoints), even large percentages can be hard to see. And
I'm not sure how you can be agreeing 'exactly', since the Roman empire was as
agriculturally based as anything else around (latifunda, panem et circenses,
the Egypt grain tribute etc.).
But you are right that the annual growth due to _efficiency_ was relatively
small:
> Indeed generations of English schoolchildren have read, probably with bored
> bemusement, of the exploits of such supposedly heroic innovators as Jethro
> Tull (author in 1733 of An Essay on Horse-Hoeing Husbandry), “Turnip”
> Townsend, and Arthur Young. But this agricultural revolution is a myth,
> created by historians who vastly overestimated the gains in output from
> English agriculture in these years.4 The productivity growth rate in
> agriculture was instead modest, at 0.27 percent per year, lower than for the
> economy as a whole. But even these modest gains represented considerably
> faster productivity growth than had been typical over the years 1200–1800.
> Figure 12.4, for example, shows wheat yields per seed sown in England from
> 1211 to 1453. Medieval agriculture seems to have been totally static over
> hundreds of years.
(Clark remarks elsewhere that agricultural productivity growth is more like 1
or 2%, and the Chinese had easily double England's agriculture efficiency, but
because farming is a war against entropy, with land being damaged and local
pests adapting etc., the net productivity growth is small.)
Economic growth came mostly from population growth and exploiting additional
natural resources.
------
wazoox
In France there is a related system, "les Compagnons du devoir". However, it
exists for carpenters, masons, sculptors, bakers, etc. Almost all hand crafts,
in fact. They must travel around the country to learn their craft, and present
a "masterpiece" as a proof they master it.
<http://en.wikipedia.org/wiki/Compagnons_du_Tour_de_France>
------
vidar
Reminds me of a proverb from Nassim Taleb: "Skills that transfer: street
fights, off-path hiking, seduction, broad erudition. Skills that don't:
school, games, sports, laboratory - what's reduced and organized."
------
arjn
Back when I was in undergrad, I met a German exchange student who mentioned
something about this. He may have been part of it at some point. They have a
special belt buckle or something which identifies them and he said it was
almost a status symbol (the belt buckle). I believe he was a roof-shingler and
not a general carpenter though.
------
Luc
I really wanted to see those beer-giving sticks, and found that the magic
google word for more pictures is 'Wanderschaft':
<http://www.google.com/images?q=Wanderschaft>
~~~
jsilence
Sorry, but "Wanderschaft" is a rather old fashioned word for hiking. It is the
noun version of the verb "Wandern" (to hike).
The stick is called "Wanderstab" or "Stenz".
~~~
DanielH
"Wanderschaft" is the German noun used especially for the carpenters journey.
------
bobbywilson0
Corey Haines has done this with software development. In a similar fashion
working for room and board. Which turns out to be a great deal for the company
and I assume great experience for Corey.
~~~
kragen
He has a blog at <http://programmingtour.blogspot.com/> but I don't see where
he talks about programming for room and board.
------
mrspandex
Did anyone else read that title as "time traveling German carpenters?"
Does the internet make this less relevant for those in the software field?
~~~
plastics
The "Walz" is not for building primary skills (i.e. in our case Software
Development or in their case Carpentry). It is assumed that carpenters doing
it are already quite skilled in their respective profession. The reason of the
"Walz" is to teach self reliance, soft skills and to round out ones primary
skills by being exposed to practices of their craft that have
evolved/developed differently from those they learned during their
apprenticeship.
In short the goal is to become a "Master" which in the german vocational
tradition originally meant having your own shop and not needing to be an
employee any longer (so in our case to become a founder).
I think the internet undermines these goals, because, well IMHO it is becoming
more and more a gigantic echo chamber (we all read the same blogs/books,
admire the same persons, use remarkably similar tools etc.)
I think it is astounding that a lot of very smart people assume that currently
hip and promoted best development practices, say for a Web 2.0 whatever
platform are relevant for other areas (e.g embedded, big iron, medical,
aeronautic, finance) because there is not much evident push back in the blog
sphere from practitioners in these spheres... which AFAIK is more a result of
these people tending to much less likely to blog or work on open source
software, than of the universal applicability of said practices (and if the
push back, the results I have seen so far have been highly embarrassing for
the hipster crowd).
~~~
mhd
_In short the goal is to become a "Master" which in the german vocational
tradition originally meant having your own shop and not needing to be an
employee any longer_
Not just originally, for some professions you're _still_ not allowed to have
your own business without your "Meister" degree. Never understood why this
included hairdressers…
Totally agree with your assessment of the web subsection of the IT profession.
And it's quite splintered, with the "young turks" against academia against the
enterprise, with plenty of small areas of expertise vanishing in the cracks.
It does get a bit better if the forum of discussion is sufficiently abstract
and spread over different niches (e.g. programming languages that transcend
specific fandoms).
------
fleitz
Interesting article, it's one of the directions I want to take with Answer in
30. We're very people focused so I think it's essential to be out and about
with the 99% of people who aren't tech startups, getting work, getting to know
our customers and seeing how our product can make their lives better and
businesses more successful.
I want to take a van and travel North America working on the startup and
talking to our userbase and customers. What could be better from a community
management perspective than to get a visit personally from the founders. I
think it says a lot more than some silly badge you can display on your
profile.
------
WA
Funny, I have seen these guys in a bar a few months ago (in Germany). I didn't
talk to them. However, that would've been interesting I guess. Anyways,
interesting story.
| {
"pile_set_name": "HackerNews"
} |
McDonald's Europe: Computers to Replace Cashiers - chailatte
http://www.thestreet.com/story/11122512/1/mcdonalds-europe-computers-to-replace-cashiers.html?cm_ven=GOOGLEN
======
IanMikutel
"The touch-screen platform will be implemented in around 7,000 McDonald's
restaurants in the United Kingdom, according to reports, in an effort to
improve efficiency and speed up customer service times."
Here's an idea: create a Chipotle-style ordering app. You'll improve
efficiency, speed up customer service times, cheaper capital investment than
buying all those touchscreen kiosks, still get the benefit of looking
technologically savvy, increase your brand recognition by getting your logo on
millions of phones, and most of all, keep all those cashiers employed and
contributing to the economic growth of Europe--a win-win for the long term
health of McDonald's and their shareholders.
------
jff
They have an order kiosk here at the local Jack In the Box (California). I've
enjoyed using it simply because most people seem to want a human to take their
orders; I'm comfortable using the computer, so I can step right up to the
unoccupied kiosk and place the order.
It's convenient.
| {
"pile_set_name": "HackerNews"
} |
Pin your friends - edwardliu
http://www.hellol.com
======
edwardliu
we're the pinterest for people. Right now our theme is focused on dating.
Check it out and give us some feedback :)
| {
"pile_set_name": "HackerNews"
} |
Resources for Learning Graphics Programming - ingve
http://stephaniehurlburt.com/blog/2019/3/25/resources-for-learning-graphics-programming
======
renholder
Simplygon[0,1] has an SDK[2] - migh be worth a look, as well?
[0] -
[https://en.wikipedia.org/wiki/Simplygon](https://en.wikipedia.org/wiki/Simplygon)
[1] - [https://www.simplygon.com/](https://www.simplygon.com/)
[2] -
[https://account.simplygon.com/#/downloads](https://account.simplygon.com/#/downloads)
| {
"pile_set_name": "HackerNews"
} |
Air Force Blocks Media Sites That Posted Leaked Cables - shrikant
http://online.wsj.com/article/SB10001424052748704694004576019944121568506.html
======
DupDetector
Dup:
<http://news.ycombinator.com/item?id=2007332> \- wsj.com - no comments
Additionally, same story, different sources:
<http://news.ycombinator.com/item?id=2007015> \- nytimes.com - 2 comments
<http://news.ycombinator.com/item?id=2007650> \- theregister.co.uk - no
comments
<http://news.ycombinator.com/item?id=2008075> \- reuters.com - no comments
| {
"pile_set_name": "HackerNews"
} |
Highly mutated cancers respond better to immune therapy - pseudolus
https://www.nature.com/articles/d41586-019-00143-8
======
apathy
That’s not the important conclusion of the primary article. Highly mutated
cancers _of certain types_ respond better to checkpoint inhibition and so
forth. Melanoma, lung adeno, colorectal with MMR defects, for example. Others
(glioma, high-grade serous ovarian, germ cell for example) don’t seem to get
“hot” immunologically in proportion to their mutation burdens. (And there are
other tumors, serous ovarian hypercalcemic for example, that have a
vanishingly low mutational burden and respond to checkpoint inhibitors
anyways).
The initial results suggested that more mutations == more immune response.
That’s clearly not universal enough to rely upon clinically, although in some
tumor types it’s suitably reliable to stratify clinical trials. In other tumor
types, it looks like we are stuck with trial and error to find good enough
biomarkers for response, as with most drugs.
So while TMB can be useful, it has limitations, and this study (the primary
results, published in _Nature Genetics_ , a related but different journal)
helped clarify where those limitations are. The news & views piece just has
pull quotes.
~~~
yread
I think there were some trials with negative results trying to link just TMB
to immune response or outcome. It's really about problems with MMR genes.
~~~
apathy
Not only, and not always. HGSOC-hypercalcemic is a particularly notable
exception. The idea that it’s always MMR came from Lynch syndrome, but that
doesn’t seem to be universal.
Immunity is complicated, you heard it here first...
------
arcticbull
Makes sense, the immune system is for detecting things that aren’t “you” and
killing them, so the more mutated it is the less you it is — the easier it is
to kill. Intuitively, anyways.
I wonder if this is what spontaneous remissions are all about: the cancer
mutates to the point that the immune system picks it up and knocks it out?
~~~
najarvg
The headline is a bit misleading and if you look at the landscape of cancer
immunotherapy research you will see this generalization does not hold at all
i.e. tumor mutational burden is not necessarily a good predictor of response
in all types of tumors. See apathy's response above. W.r.t spontaneous
remission, there have been a few lines of research that would seem to lend
credence to your hypothesis (e.g. - see
[http://www.fevertherapy.eu/](http://www.fevertherapy.eu/)) but it has never
been studies systematically enough to draw any conclusions one way or the
other.
------
crb002
This makes sense. Barely mutated cancers are harder to distinguish from cells
with benign mutations.
| {
"pile_set_name": "HackerNews"
} |
QuickStart for a SQL Database with Blockchain Features - auxten
https://testnet.covenantsql.io/quickstart
======
daniel-l
Great work, I have Stared your project, so what's the difference between u and
bigchain?
~~~
auxten
First, we have SQL support, Bigchaindb is MongoDB. CovenantSQL is written in
Golang and C. Bigchaindb is written in Python. For more, you can refer our
README
| {
"pile_set_name": "HackerNews"
} |
Y Combinator - Startup Library as Single pdf (12 MB) - Chirag
http://ff.im/776I7
======
davidcc
This is handy! But embedded flash adverts? Not for me.
------
danw
What's in the pdf?
~~~
jcl
It appears to be a capture of the articles on this page:
<http://ycombinator.com/lib.html>
------
sid
Freaking awesome, thanks for this mate. Once i finish the current book im
reading (on the train commute to work) i will have more great reading with
this 12.8meg file :P.
I have read alot of PG's essays but it wouldnt hurt to re-read some of it
again .. could notice things i hadnt the first time through.
------
Virax
I was expecting something useful - like legal documents, lots of howtos. For
example: basic Linux networking including setting up services, basic security;
legal documents, basic negotiating, basic people networking, PR strategies,
etc...
This is just a bunch of advice - not really that useful.
------
terpua
Thanks for the library. Useful. However, I found a blog post cut-off.
Here's the post: <http://evhead.com/2005/11/ten-rules-for-web-startups.asp>
------
callmeed
Sent to Kindle! ... props to whoever put that together.
------
rrikhy
This is great...thanks for the upload, Chirag!
| {
"pile_set_name": "HackerNews"
} |
A behind-the-scenes look at Facebook release engineering - 3lit3H4ck3r
http://arstechnica.com/business/news/2012/04/exclusive-a-behind-the-scenes-look-at-facebook-release-engineering.ars?utm_source=feedburner&utm_medium=feed&utm_campaign=Feed%3A+arstechnica%2Findex+%28Ars+Technica+-+Featured+Content%29
======
joshuahedlund
So many gems in this article.
_To help spot problems, Facebook employees who access the social network from
within the company's internal network will always see an experimental build of
the site based on the very latest code, including proposed changes that
haven't officially been accepted._
Probably the only place where your excuse for checking Facebook at work can be
"Looking for bugs!"
_The many data sources tracked by Facebook's internal monitoring tools even
include tweets about Facebook. That information is displayed in a graph with
separate trend lines to show the change in volume of positive and negative
remarks_
Guess I need to tweet more about how slow their mobile app is getting...
_One of the major ongoing development efforts at Facebook is a project to
replace the HipHop transpiler. Facebook's developers are creating their own
bytecode format and custom runtime environment.... the company can push thin
bytecode deltas representing just the parts that have changed. Facebook may
even be able to splice the updated bytecode into the application while it's
running, avoiding a process restart._
Even though I'm doing nothing nearly this awesome, this article has done more
to inspire and excite me about my own coding than anything I've read in a long
time.
~~~
mikeleeorg
I'm also really intrigued by the "karma" rating for all of their developers.
Can anyone speak to how well that is working? Has it been effective? Any
negative side-effects? Is it just for the release process, or for any
development effort?
~~~
nbm
It is "Push karma", so generally only applies to the push process. It isn't
visible to anyone but the pushers and yourself (at least, I can't see anyone
else's push karma in the expected places).
It isn't a complex rating system - there are probably 97% of people at the
base karma level, maybe 0.1% at one rung higher, 2.7% at one rung lower, and
0.2% at lower than that. The "Push" tech talk at
<https://www.facebook.com/video/video.php?v=10100259101684977> has more on it.
Mostly it is a way of letting you know that you made people's lives difficult
by holding up the push process by not being available to support your changes.
You know that you won't get away with that, that you need to make up for it,
and you also know when you've made up for it.
(It also doesn't apply to a decent number of engineers, since they work on
services and infrastructure that are not part of that process.)
------
brown9-2
This tech talk video from Chuck Rossi on the same topic also has a lot of
really interesting information
<https://www.facebook.com/video/video.php?v=10100259101684977>
------
benjaminwootton
I'm surprised by the monolithic all-or-nothing deployments that they have off
of the single binary.
I prefer to componentise applications and allow those components to be
deployed, released, and rolled back separately.
I also don't agree with the 'rollback is for losers' message as hinted at in
the article.
A fast dependable rollback (measured in the seconds) is significantly
preferable to getting a developer to implement a fix to some issue under
pressure and push it out in a rush. Much better to roll back, take stock, then
implement the right fix under the tested process.
~~~
flyt
Facebook is updating tens of thousands of servers with every push. "Rolling
back" a release could take as long as a regular push and contribute to
problems as the version in use diverges.
Instead, FB has an aggressive and flexible internal system for "ungating"
features to groups based on different criteria. Usually a feature would be
pushed out in a deactivated state, then a developer will slowly ramp up its
exposure to actual traffic. This limits the ability for a push to insta-break
the site and means they can come back around for the next day's push with
tweaks, then increase the code's exposure.
~~~
numlocked
According to the article reverting does NOT involve re-deploying. Each server
maintains the previous version of the binary and if needed the release team
can pull the switch to revert all the servers. I assume that takes seconds,
not 30 mins.
~~~
TeeWEE
In fact i worked at a dutch social network where we also used hiphop. The new
compiled binary is pushed to all servers and then it is started, the old
binary is stopped and a port handover is done. Thus deploying without
downtime. The old binary is available on the system, making a rollback very
fast. However old binaries are removed after a time. So you can only roll back
to a previous version quickly.
------
stcredzero
_Facebook's developers are creating their own bytecode format and custom
runtime environment.... the company can push thin bytecode deltas representing
just the parts that have changed. Facebook may even be able to splice the
updated bytecode into the application while it's running, avoiding a process
restart._
NB: Fast JIT byte code VMs running web app frameworks in high level languages
that can do all of this have been around since the early 2000s. (Including the
distribution of binary deltas that can be applied atomically to live servers.)
Smalltalk web app servers had all of this tech, plus refactoring capabilities
and distributed version control years ahead of the rest of the industry. It
makes me wonder what else is out there beneath the radar today.
------
jpeterson
Why would they transfer the entire 1.5g binary each time, and not a delta?
Surely it doesn't change _that_ much between releases.
~~~
jrockway
Because the continuous integration runs tests for all components at HEAD, not
at every random possible combination that could end up on a machine. The key
to releases is repeatability and consistency. Copying one big blob to every
machine is repeatable and consistent. Installing a bunch of libraries and
updating things piecemeal is much more difficult to do right. Internal
bandwidth is cheap, so this is almost a no-brainer. Even without an internal
bittorrent distribution mechanism, it's still easy.
The reason why people tend to gravitate to incremental deployments for web
applications is because the typical tools encourage it; modules get installed
in separate directories, each part of the app is a separate file (back in the
CGI days), etc. When you compile everything into one file, though, then you
just copy that file around to deploy. It's easier. (Ask a PHP programmer how
to change one file, and it will probably be "change that one file". Ask a Java
programmer, and it will be "fix the file, build a WAR, and replace the WAR".
Tools dictate process, and the "scripting language" default is to work on a
file level instead of an application level.)
I've always wanted one-file deployment for my personal applications, but I
never saw anyone doing it so I assumed I was wrong. But nope, it turns out
that everyone else was wrong :)
~~~
sciurus
jpeterson didn't suggest "installing a bunch of libraries and updating things
piecemeal". Instead of transferring the entire binary for every release they
could generate a (likely much smaller) patch, transfer just it, then apply it.
I expect they're not doing this because it's computationally intensive
compared to transferring the entire binary.
------
bonaldi
I find it most interesting that they rely on irc internally. They work on one
of the world's largest online communications platforms -- surely they could
solve their problem in a way that gives it to their millions of users too?
~~~
nbm
We do make extensive use of Facebook messages (many people, including me, make
good use of Facebook Messenger on mobile and/or desktop) and of Facebook
groups.
IRC's ability to quickly create temporary groups, temporary membership
(essentially muting discussion by leaving, or peeking by joining), bot
frameworks, and multiple clients are potential reasons why IRC might be
preferable for the sort of things it is used for, I guess.
~~~
alexgartrell
As I understand it, the main reason is that IRC is decoupled from Facebook
completely (or should be). In "Oh shit, the sky is falling!" SEV situation we
can trust (sorta) that IRC will be there.
------
raphinou
The article mentions that employees visiting Facebook from inside use an
experimental build. Any idea how they manage this if the experimental build
requires changes in the data structures used by the site?
~~~
bonzoesc
I suspect that if new features require storage changes, the changes are
strictly additive and won't affect old features, or old features are modified
to use the new storage setup.
With the amount of data Facebook has, they probably don't have the option of
an "iterate over every row and change a thing" kind of migration.
~~~
flyt
No, but they do have an extremely fast and efficient tool for performing
online schema changes to its huge MySQL deployment:
[https://www.facebook.com/notes/mysql-at-facebook/online-
sche...](https://www.facebook.com/notes/mysql-at-facebook/online-schema-
change-for-mysql/430801045932)
------
cake
_The company has two separate sets of these tests; one does some conventional
sanity checking on the code and the other simulates user interaction to make
sure that the website's user interface behaves properly._
Anyone know more about this ? How are the user interaction made ?
~~~
rheide
I'm guessing they're talking about unit tests and integration tests, the
integration tests probably simulating user input using a framework such as
Selenium(RC).
~~~
alexgartrell
It's been a while since I've had to deal with it (bootcamp), but I'm pretty
sure we still use Watir [1]
[1] <http://watir.com/>
------
zbuc
How do you wind up with a 1.5gb binary? That's incredible -- especially
considering all their static assets are on their CDN, so this is basically
their code and all the libraries they're pulling in.
~~~
kmavm
(I work on the HipHop compiler.) You start by compiling PHP source.
Simple PHP statements take a lot more space in the binary than intuition
suggests. E.g.:
if ($a == $b) ...
would seem like it should be
cmp $rax, $rbx
jz ...
But! If type inference has failed, we don't know what types $a and $b are, so
they might be strings or objects or something crazy. So we're going to have to
indirectly dispatch to $a's '==' method. We also spend a ton of space on
reference counting code; the semantics of the language basically force you to
do naive reference counting, since refcounts can be witnessed in various ways,
so every time we pass an argument, do an assignment, sometimes even evaluate
expressions, we need to manipulate reference counts, and if they've gone to
zero call a destructor.
It ends up making the code really large, and one of the things that's unique
about our efforts to run PHP fast relative to other dynamic language efforts
is that sheer code bulk ends up being our largest enemy; if we're not careful,
icache misses eat us alive.
Finally, I'll note that it's not _quite_ a 1.5GB binary. The actual ELF binary
is something like 1.1GB, and the remainder of the package we bittorrent around
production is stuff like static resources (javascript, css) and primed
contents for the APC cache that we want prepopulated on boot.
~~~
cookiecaper
Based on your work heretofore, do you think it's wise for Facebook to continue
on the PHP path instead of working on a backend rewrite in C# or some other,
saner language? I find it odd that Facebook is still using PHP and pouring
lots of effort and cash into things like HipHop when they're obviously hiring
people smart enough to use another language, and when they obviously have the
runway to perform a dark horse rewrite into a much cleaner, saner backend.
~~~
kmavm
This is a long and deep subject.
I wouldn't say that we've "continued on the PHP path." I'd say that we've
refused to throw out the precious PHP parts of our application, while not
being afraid to use more appropriate languages across Thrift boundaries when
needed. Our search engine, newsfeed, and ad serving infrastructure, for
instance, are in C++.
A drop-everything-and-rewrite of the PHP code is entirely out of the question,
for all the reasons covered in Spolsky's 12-year-old classic on the subject:
<http://www.joelonsoftware.com/articles/fog0000000069.html>. Those of us
working on making PHP perform better are a tiny fraction of Facebook
engineering as a whole; this small overhead cost is nothing compared to the
risks inherent in a ground-up rewrite.
Most of PHP's language-level faults can be engineered around. For instance, we
have a code-review-time script that parses (really parses) the code to warn
engineers (and reviewers) about dangerous or deprecated idioms.
PHP also has some affirmative virtues. The programming model is more
productive than that of compiled languages, and even many interpreted
languages; save/reload the web page is just a better, tighter loop to get work
done in than save/compile/restart my server/reload the web page. I'm actually
a fan of PHP's concurrency model, which naifs often mistake as "no concurrency
allowed"; PHP's concurrency primitive is curl[1], and if you wrap a tiny bit
of library around it, you can make it behave like actors.
[1] Seriously. curl provides a shared-nothing way to asynchronously run code,
and has the virtue of not caring what language the other side is written in to
boot.
~~~
cookiecaper
Right, I'm familiar with Spolsky's piece, but I think there are times when a
rewrite is legitimate. I think that a situation where you must roll a
completely custom in-house compiler that generates binaries which exceed 1 GB
in size in order to get adequate performance of your app is a good candidate
for a new architecture, despite Spolsky's claims. Spolsky's article discusses
throwing out pages of code because the programmers "don't know what half of
these API calls are for" and "[wanting] to build something grand" -- these are
quite different impulses than the real-world problems staring Facebook in the
face by its continued usage of PHP.
I think also that there is a difference between writing a new backend for
something that is solid and in place and just throwing the whole product out
the window and re-imagining it from the ground up, and I think the latter is
the kind of rewrite that should be avoided and considered dangerous. When you
could throw 4-5 guys on a real C# or C++ rewrite and tell them the final
product has to behave identically to the PHP version, you have a much less
volatile situation.
As for the PHP workflow, I agree it's nice not to have an intermediate step,
but that intermediate step can usually be circumvented pretty rapidly by
throwing a script or two (or just flipping a config option) into your
development environment.
~~~
ericd
I think developing in PHP and compiling to C++/binary probably results in much
higher developer productivity than developing in C++/C# directly. Developer
salaries are undoubtedly their largest expense, by far, dwarfing those
salaries of the people who make PHP performant and 1.5 gig binary updates
sane.
~~~
sciurus
I expect that running their datacenters is a larger expense than developer
salaries.
"In 2011, $606 million was allocated towards total capital investment in data
center infrastructure by Facebook, which includes the cost of servers,
networking equipment, construction, and storage." -
[http://www.colocationamerica.com/blog/facebook-data-
center-i...](http://www.colocationamerica.com/blog/facebook-data-center-
infrastructure-expenditures-a-quick-analysis.htm)
~~~
evgen
The assumption that migrating the entire www stack to something like C++ would
help with the datacenter costs is not supported by reality. Please remember
that the bits that are in PHP are mostly front-end code. This handles the
presentation of the data, but the actual heavy-lifting and data manipulation
is done by the back-end infrastructure which is mostly C/C++ with some Java
thrown in for the hadoop bits.
~~~
nbm
I would disagree here - every percent CPU saved for the same workload is a 1%
reduction in the number of machines needed. The number of web machines is
sufficiently large that savings of even 1% are praiseworthy. Quite a bit of
effort is expended to keep this going down and to the right (at least some of
the time).
------
algolicious
_Facebook's testing practices and culture of developer accountability help to
prevent serious bugs from being rolled out in production code. When a
developer's code disrupts the website and necessitates a post-deployment fix,
the incident is tracked and factored into Facebook's assessment of the
developer's job performance.
[...]
Employees with low karma can regain their lost points over time by performing
well—though some also try to help their odds by bringing Rossi goodies. Booze
and cupcakes are Rossi's preferred currency of redemption; the release
engineering team has an impressive supply of booze on hand, some of which was
supplied by developers looking to restore their tarnished karma._
This sounds like Facebook strongly rewards developers who work on trivial,
low-risk features rather than larger, more important features. Also, it sounds
like bribery factors into your overall job performance rating.
~~~
nbm
Push karma primarily affects how likely the release engineering team will
accept any breaking of the standard rules of getting your code into the push.
It generally doesn't drop if you are responsive and responsible for any
problems your change causes. The only way to restore points is to show respect
and consideration for the hard work the release engineering team does.
(I'm not 100% sure, but I think most of the booze and cupcakes come from
people who were appreciative of the release engineering team for bringing
potential issues to their attention or for being accommodating in terms of
hours and in terms of delay to get things fixed.)
Being irresponsible (not supporting your changes) will factor into your
performance review, but working exclusively on low-risk features will most
likely hurt it way more.
| {
"pile_set_name": "HackerNews"
} |
Run Ruby on Rails on Apache Mesos - tknaup
http://mesosphere.io/learn/run-ruby-on-rails-on-mesos/
======
film42
I've never seen this before:
[https://elastic.mesosphere.io/](https://elastic.mesosphere.io/)
Seems like an awesome idea to onboard people to using Mesos. I'm definitely
gonna play with it this weekend!
------
pspeter3
This looks awesome!
| {
"pile_set_name": "HackerNews"
} |
Apple Security Update released, fixes several serious vulns - lvh
https://support.apple.com/en-us/HT201222
======
Someone
That's not the best HN story title (it currently is "Apple Security Update
released with several serious vulns"). From what I can tell, this update
doesn't _have_ several (known) vulnerabilities, it _fixes_ them.
~~~
lvh
That's fair. I've edited the title.
------
lvh
If you have an Apple device, be it running macOS, tvOS, watchOS or iOS, you
should go update it, right now.
Details aren't entirely clear, but it doesn't seem impossible that these vulns
together chain from browser to kernel.
------
0x0
Unfortunate choice of URL, since this is the generic list of all Apple
security advisories.
~~~
lvh
I wanted to link the the most official source. They're sorted by date, so you
can just look at the ones released today.
| {
"pile_set_name": "HackerNews"
} |
Breitbart, other conservative outlets escalate anti-SpaceX campaign - rbanffy
https://arstechnica.com/science/2017/11/breitbart-other-conservative-outlets-escalate-anti-spacex-campaign/
======
marksellers
This new flavor of conservatism is so strange in light of how bound to free
market ideals most flavors of conservatism are.
In general, I really quite dislike Conservative/Liberal labels as political
stances are not two-dimensional, but rather multidimensional. Parties are
loose alliances of disparate groups. And somehow there's this rising
contingent of neocons, who also happen to dislike SpaceX.
Does anyone understand this?
Edit: I want to clarify that the alternative to private enterprise competing
for government contracts (usually military, again usually a conservative
delight) is direct government sponsorship, i.e. NASA.
SpaceX is one of those cases where the free market actually has been more
effective. So why not seize on it?
~~~
eli_gottlieb
"Neocons" were the foreign-policy hawks of the 2000s. These guys largely call
themselves the "alt-right".
They're basically as bad as you've heard, but hiding it sometimes.
Even I find this particular turn against SpaceX somewhat weird. My internal
model of the alt-right has largely been that they have one wing who are
basically Nazi fanfiction, another who idolize the "throne and altar
conservatism" of pre-Revolutionary France, and another who think they should
build Warhammer 40K's Imperium of Man as a real-life society (they're _very_
pop-culture influenced). Turning against a private space company seems to
indicate that some factions (Nazis plus... someone else?) are throwing the
"far-right futurism" faction overboard.
(Again, these guys are _really weird_ , but hey, it's all there on their
blogs.)
My big question is: where's Peter Thiel in all this? Just last year, he was
the one trying to assure everyone that, oh don't worry, this was all about
tearing down overbearing regulations and political correctness in favor of
unbound innovation, that the Right weren't anti-science religious people
anymore, etc. Turning against SpaceX isn't just throwing a faction of bloggers
overboard, it's thrown Thiel overboard, and he was a major billionaire backer
for all of this.
~~~
exelius
I'm not saying I agree with them, but a common theme I hear from the alt-right
is "no gods no masters" (Game of Thrones reference, ding on the pop-culture).
Now, nevermind that these guys are setting up as many gatekeeping functions as
they tear down; they simply justify it as "protecting real hard-working
Americans" through xenophobia.
It's all built on the false nationalism of a flagging superpower, and if any
of these people traveled in the least they would see that other countries are
actually doing a lot of things better than we do here. We got arrogant, our
politicians got greedy, and our voter base got complacent. It's only going to
get worse too.
~~~
kevinmchugh
> "no gods no masters" (Game of Thrones reference, ding on the pop-culture)
that's not a game of thrones reference as far as I can tell. It's an old
anarchist and socialist slogan. It'd be an odd fit for that part of the right.
"No gods or kings, only man" is a Bioshock reference that pops up sometimes in
those parts.
~~~
Freak_NL
> "No gods or kings, only man" is a Bioshock reference that pops up sometimes
> in those parts.
Which in turn uses Ayn Rand's philosophy (Objectivism) as the basis of the
fictional (failed) society in Bioshock.
(Compare with this quote: [https://www.goodreads.com/quotes/207108-at-first-
man-was-ens...](https://www.goodreads.com/quotes/207108-at-first-man-was-
enslaved-by-the-gods-but-he) )
Ayn Rand and her philosophy are quite popular in right-wing circles (and
incidentally, largely denounced in academic circles).
~~~
wmil
> and incidentally, largely denounced in academic circles
Not surprising. A tenured professor getting government grants for research is
a villain by Randian standards.
~~~
jandrese
It has been many years since I read the books, but I'm pretty sure university
intellectuals were actual villains in Atlas Shrugged. IIRC didn't they say
that more testing was needed before they could count the new supermetal as
safe?
I remember thinking at the time that the hero was being really reckless and
that advanced composites often fail in new and unexpected ways and that
building an entire rail line out of the stuff before you understand how it
fails is beyond risky. Of course because it was a book the metal is perfect in
every way and never has a problem, but the real world is rarely so forgiving.
------
tim333
Not that I agree with it but the conservative argument against SpaceX seems to
be largely:
>Despite the numerous public statements by SpaceX CEO Elon Musk decrying crony
capitalism, SpaceX would not exist without government contracts and subsidies.
According to The Wall Street Journal, government contracts account for about
70 percent of SpaceX’s contracts. U.S. taxpayers have provided SpaceX more
than $5.5 billion in the form of Air Force and NASA contracts.
from "Ron Paul: Crony defense budget hands SpaceX a monopoly - why?" op ed in
Fox News [http://www.foxnews.com/opinion/2017/09/12/ron-paul-crony-
def...](http://www.foxnews.com/opinion/2017/09/12/ron-paul-crony-defense-
budget-hands-spacex-monopoly-why.html)
I think he also annoys Breitbart types by talking about global warming.
~~~
Cuuugi
Thank you for not falling into the "Conservatives hate science" trap.
I can't speak for other people, but my personal issue with Musk's ventures are
how much money he funnels from the government.
~~~
pjc50
Multiple choice question!
For its launch capability, the US government should:
\- buy on the open market at the lowest available price. Currently this turns
out to be Russia.
\- buy on the US market at the lowest available price. This may be SpaceX
although other contenders are mentioned in the article
\- build its own rocket systems from scratch inside government agencies
\- just pay Boeing/Lockheed like they've always done
\- just give up on space
(basically, if you think Musk funnels a lot of money from the US government,
you should check out the rest of the aerospace industry...)
~~~
wallace_f
There is a fair point to be made that we _should_ be quite critical of how
taxpayer dollars are spent. Musk himself even agrees that subsidies lead to
cronyism. He has even said himself that subsidies to Tesla should end in favor
of a carbon tax, which would be a more just,fair, competitive, and efficient
policy tool. Musk and Ron Paul are both actually right about that.
So given that government money spent towards space should be spent fairly and
in support of a policy that maintains multiple competitors, these criticisms
are a mix of 1) A warranted and necessary critical thought process, 2) likely
influenced and supported by some good-old-boy network/industry support for
ULA, and 3) opportunistic politics cashing in on a shallow opportunity to get
back at a couple of Trump's adversaries like McCain and Musk.
------
InTheArena
Ron Paul and Rand Paul identify as libertarians and are as close to
libertarian as the (R) party gets. Ron Paul has the added benefit of having
wacky neo-nazi roots that he disavowed during the Clinton era. They loathe any
sort of government investment. McCain is the only real conservative mentioned
here. The alt-right has their true god (Bannon) and their lesser god (Trump).
Trump loathes conservatives, and conservatives mostly loathe him, but they
need each other (for the moment). McCain has traditionally been a huge backer
of Mueller, and is openly looking to take Trump down.
Both sides have seen ideological purges, and the "blue dog democrats" and
"Rockefeller republicans" were purged over the last twenty years. The last
real moderate was probably Boehner, and the combination of the Tea Party, and
aborted "great compromises" by Obama did him in. The former Senate Majority
leader claimed to be a pro-life (personally) Democrat from Vegas, but
increasingly abandoned this as his party lurched to the left, and was replaced
by a corporatist Democrat with deep deep links to investment banks (Schumer).
Biden is still out there as a moderate Democrat, but was completely
marginalized in party politics when his great compromise efforts with Boehner
were torpedo'd by more activist portions of Obama's cabinet. (No one has ever
taken credit for actually convincing Obama to ask for additional trillions in
tax-raises last minute both times). I think Biden is just about the only
candidate who could have won against Trump in the last election.
The so-called "Neo-cons" (their original name was "Vulcans") were not neocons
because they were reformed conservatives, but rather former Wilsonians who
turned more Jacksonian over time.
As for Musk, Shelby and Ryan, more then anything else, they are opportunists.
There is a very similar fracturing and disintegration on the left right now,
with the AntiFa, the move on crowd and so called progressives all purging
those who disagree with them. Then you have much much more radical elements in
the colleges and universities.
The French Revolution comparisons are not without merit.
~~~
orblivion
The "god" of the alt-right is Richard Spencer. Granted the definition of alt-
right has shifted around, but by the current prevailing standard among those
who adopt the label and used to do so, I think it is strictly an
ethnonationalist movement. Unless you're going to cite rumors about Bannon,
I'd say Breitbart doesn't quite qualify. Again, forgetting anything Bannon
once said about it being the platform of the alt-right, and going by current
running definitions. Breitbart would probably be considered "alt-light".
~~~
bbctol
No one cares about Richard Spencer other than media figures who needed a dude
in a suit to claim to be the leader of the alt-right. He's a random non-entity
that was virtually unknown even in cryptofascist circles until liberals
decided, for no good reason, to start paying attention to him.
~~~
orblivion
Well, he coined the term alt-right. Maybe he's not the most important figure,
that was just my best guess.
My point is about use of the term. In particular, the way it's fuzzy, and
attributing ethnonationalism to people who are civic nationalists.
------
curiousgeorgio
I'm not intimately familiar with the details of this issue, nor with the
various "flavors of conservatism" mentioned in comments here, but this article
makes a strong argument for a few points that we can probably all agree on:
SpaceX likely isn't responsible for pushing for the legislation in question
(as some news outlets claim), but there _does_ seem to be ample evidence of
private influence on the government leading to proposed legislation with
anticompetitive characteristics. If it does pass, SpaceX is expected to
benefit as a result, so whether or not they are pushing for the legislation
themselves, the end result may be just as worrying as if they had.
Instead of debating labels or levels of political congruence among the various
people who have brought up this issue, perhaps it would be more productive to
discuss the possible ramifications of this legislation passing. Also worth
considering is the topic of private influence over government (especially in
defense, where it's largely just "the way things are done"), and whether or
not business practices that benefit from such arrangements actually qualify as
capitalism.
------
perlpimp
Suppose ULA charges 10x for launches and SpaceX bargain bin launches that get
ever cheaper(with reusable rockets) have threatened ULA. I bet if you follow
the money you will find the culprits.
~~~
DenisM
ULA isn’t the only entity hurt by cheap launches.
~~~
le-mark
Are you alluding to other launch providers such as Russia, European Space
Agency, etc, or did you have something else in mind?
------
brennankreiman
I recall a congressional hearing where a person from SpaceX stated that
Couldn't figure out why ULA rockets cost $422 Million while SpaceX rockets
only cost ~$90 Million. Methinks there are some established players pulling
their congressional strings. [https://arstechnica.com/science/2017/06/air-
force-budget-rev...](https://arstechnica.com/science/2017/06/air-force-budget-
reveals-how-much-spacex-undercuts-launch-prices/?comments=1&post=33514969)
------
Mountain_Skies
Elon Musk picked up the mantle of Steve Jobs tech showman. His high visibility
makes him a target. There is no public face that I'm aware of for ULA and
while Jeff Bezos is certainly hated in that crowd for his ownership of the
Washington Post, Blue Origin gets very little criticism. Some of that might be
due to differences in what entanglements each has with the government but
Bezos also avoids the type of spotlight Musk goes to great effort to stand in,
at least when it comes to rocketry. If Tom Hanks somehow became the face and
chief string puller at ULA, he'd probably get the same hatred that Musk
receives.
------
laretluval
Not a single link to Breitbart in a piece about Breitbart. Are they so afraid
of the site that they feel they can't link to it?
The result is I can't evaluate what they're talking about. What Breitbart
articles do they have in mind? I found a bunch of neutral articles about
SpaceX there, and this negative op-ed: [http://www.breitbart.com/big-
government/2017/09/18/elon-musk...](http://www.breitbart.com/big-
government/2017/09/18/elon-musk-giveaways-wont-make-america-safe-
again%E2%80%A8/)
Is that what they're talking about?
------
maxxxxx
How can anybody keep reading Breitbart or other partisan sites? Are people so
addicted to outrage that they want keep reading stuff that's obviously wrong
if you take the time to check things for only a few minutes?
~~~
williamle8300
Breitbart is a bastion for free-thinking much like HackerNews. While you may
criticize their opinions, it's at least sane reporting... instead of
cheerleading and narrative controlling like CNN and NBC.
~~~
maxxxxx
Are you kidding?
~~~
mercer
Based on their comment history: it's a lost cause. Don't waste your energy
here.
~~~
maxxxxx
I honestly didn't think that anyone would think of Breitbart as sane
reporting. If the comment was honest then I have to change my opinion and have
learned something.
------
kharms
The only motivation I can think of is that Musk's resources are limited and if
he spends more time/money on SpaceX less gets spent on Tesla. Still, super
weird.
~~~
mmcwilliams
What about the fact that Musk publicly exited the presidential councils he was
a member of over the Paris Accord? It was a move that would have offended US
conservatives, particularly those at Breitbart, on at least two fronts:
supporting efforts to combat climate change and damaging the President's
reputation as an ally to Silicon Valley.
~~~
kelukelugames
True, the President is vindictive. I wonder if we can use this. Send in
someone who pretends to be anti renewable energy and then piss off Trump so
Trump will praise solar power.
------
gozur88
Ron Paul has always been seen as a crank, even by other conservatives.
------
Helmet
EDIT: The article does break down the purpose of Section 1615, and shed light
on its context - I did not see that the article continued beyond the massive
picture below the blurb that I quoted.
~~~
tclancy
It's very strange you would read that bit entirely but miss the multiple
paragraphs directly below it saying it is equivocally untrue.
~~~
Helmet
All I saw was a large picture below the article and didn't scroll all the way
down. I've updated my comment after this was raised to my attention.
------
PatientTrades
Elon Musk has proved again and again that he is a gift from heaven to the
human race. We must continue to support genius like him for the sake of
humanity. Stop wasting money on endless wars, entitlements, fraud, waste,
abuse, etc. Give our tax dollars to people that want to help mankind make a
quantum leap forward. Extending life beyond earth is a necessity for the
sustainment of humans
~~~
strange_quark
Is this supposed to be satire?
~~~
AnimalMuppet
My money's on "true believer", but satire is also possible...
~~~
mercer
Part of the appeal is that's it's impossible to tell.
------
make3
"Musk has given lavishly to politicians, especially Arizona Senator John
McCain (R). In return, McCain added Section 1615 to this year's defense
authorization bill, which includes language to restrict the military from
investing in new launch systems."
As much as I love Musk, this is fucked up. Just a normal day in the American
democracy I guess
~~~
Footkerchief
That argument is presented for context in the introduction. The entire rest of
the article is about debunking it:
> The central canard of these attacks is that John McCain did not, in fact,
> add "Section 1615" to the Defense Authorization Act, which is now being
> finalized by a conference between the House and Senate. This clause does not
> exist at all in the Senate language. Rather, it was inserted into the House
> legislation by US Rep. Mike Rogers, a Republican from Alabama.
> Two sources familiar with the legislation told Ars that Rogers added Section
> 1615 specifically to benefit Aerojet and its AR1 rocket engine.
> "The purpose of the provision is simple," one Washington DC source said.
> "Instead of the Department of Defense continuing their open-ended, market-
> friendly risk reduction investment across several providers to enable
> Russian-engine-free launch capabilities, Rogers wants DOD to fund Aerojet to
> build AR1 to be inserted into Atlas V." In other words, the language
> benefits Aerojet by favoring its "drop in" engine solution over building a
> completely new Vulcan rocket.
------
danjoc
Suppose Elon is a bad guy. What's to stop him from dragging a big space rock
into orbit and holding the planet hostage in X years? Government will build in
redundant checks and balances at extra expense. Corporations, not so much.
~~~
tekromancr
The hundreds, maybe thousands, of people working under him. The majority of
which would need to agree that project "Dr. Evil style giant space rock
randsom" was a good idea.
~~~
danjoc
You're the only response that actually tried to make a legitimate argument
without resorting to logical fallacies and insults. Thanks.
Still, I have to disagree with your point. Lots of people did bad things on
Hitler's orders. Lots more looked the other way. The "thousands of people"
argument falls apart when looking at historic examples.
------
creaghpatr
So is their argument “the bad guys are against it so it must be right?”
They made a point to drop that terrifying B-bomb in the title, sending shivers
up the spine of many a HN reader.
I see the ULA vs Space X competition as productive in producing innovation,
regulatory fairness aside. Regulatory problems are much less of a drag if
resulting innovation is a net positive for both private and public sectors
~~~
linkregister
> They made a point to drop that terrifying B-bomb in the title, sending
> shivers up the spine of many a HN reader.
I chuckled at this.
I think your analysis of their rhetoric is apt.
That said, the lede of the article is the media campaign pushing the pay-to-
play narrative, not the righteousness of SpaceX (which is expected to be taken
as a given).
Overall, the article was informative because I wouldn't have known that there
was a counter argument to Sen. Paul's narrative.
------
eighthnate
As much as I despise all "news" organizations, I say good.
Considering that most of the media has been fawning over musk and spacex and
everything musk does, perhaps some criticism of musk is required in a free and
democratic system.
I just don't like how so much of media are pretty much colluding with each
other to spread the same narrative. On almost all topics, it seems like most
of the media is pushing a particular narrative.
I wish we had a media environment where about a third is pro-musk, a third is
anti-musk and a third is neutral.
The same with trump/obama/clinton, politics, technology, business,
globalization, economics, international relations, etc.
All we seem to get is cheerleading by the media for one particular agenda.
I'm a believer in diversity and I think we need diversity in the media.
And I don't believe in saints. Musk has done a lot of good things, but he
isn't a saint. He has done plenty of things that can be criticized. How most
of his business lives off government subsidies. How much in bed he is with
wall street. How he really hasn't invented or created anything new. Most of
his proclamations and "inventions" are decades old technologies. None of his
grandiose proposals have born fruit yet.
If all the media seems to do is praise or criticize, then I know something is
wrong.
Edit: Wow, that was a swift and quick number of downvotes. I know that pay to
play is a big thing in news ( both arstechnica and brietbart and everyone else
does ). But I wonder if musk has pr firms working the social media scene?
~~~
barrystaes
In the US are only two political parties. Yet North Korea and Russia only have
one, so its not that bad.
And diversity does exists.
~~~
corpMaverick
AFAIK, China only has one. And it seems to work remarkably well. At least they
seem to have very smart people at the top.
~~~
kelukelugames
I would say the bottom quintile Americans is doing orders of magnitude better
than the bottom quintile of Chinese. Maybe even bottom half. This is probably
true when comparing any developed nation to a developing nation.
~~~
rbanffy
It seems the bottom quintile Americans (WRT intelligence) took over the
government...
Burn, karma, burn!
| {
"pile_set_name": "HackerNews"
} |
Ask HN: What is wrong with my Launch Page? - psg
Hi everyone. I'm working on a project and have created a launch page with the hope of compiling a list of early adopters. As with many other websites that have launch pages, the hope is that these early users would provide valuable feedback and would allow me to iterate and (hopefully) achieve market/fit.<p>The problem is that my launch page isn't getting a substantial number of sign-ups. At a quick glance, this could be for one of three reasons.<p>1: I'm attracting the wrong type of users (through advertising). In other words, not early adopters;
2: My launch page needs improvement, or;
3: My idea just sucks, and it's validation that I should not pursue this idea.<p>I truly believe I need more tests to validate that the idea is not worth pursuing (It's only been a few days). Therefore, I'm looking for advice on the other two bullets. In other words,<p>1) Any advice to get potential early adopters to the website? I've tried Google Adwords and StumbleUpon ads (note with StumbleUpon I did the auto-targeting).
2) Any advice on the launch page itself (It's at http://www.lloquy.com/).<p>Thanks in advance.
======
entangld
I think your users don't understand your website.
The word content and conversation are very abstract terms that don't inform
the reader to specific uses for your website. I watched your video thinking I
would get a clear use-case but it still wasn't clear to me.
It would be easier to understand if you said use lloquy to follow interesting
comment threads on the most interesting topics on your favorite websites
(blog, Huffingtonpost, etc...) while you continue surfing the web.
The explanation you gave requires the user to use their imagination a little
too much. I know you don't want to limit the use of your site, but it would be
helpful if the writing was more specific and exciting and the video was
focused less on explanation and more on fun useful actions users are actually
going to take on your site.
You start off talking about content creators (like it's a tool for blog
authors) and then you describe it's use for blog/content readers. That's
confusing.
1\. In your example of how to use it, you start off talking about a
"conversation" (a little vague - I wouldn't know where to find a conversation
on the web) and you start to list other uses for it before I understand the
initial use for it.
2\. You suggested people "filter content by calculating influence". That's too
abstract. I think you meant "follow popular and interesting users and vote for
the best comments."
I think more exciting language that describes tangible actions users will take
and pictures that are not flat screenshots of text will improve your
conversion rate.
~~~
psg
Thanks. Your feedback makes me believe I've fallen into the chicken/egg trap,
where I switch between different types of users. Will fix.
Also appreciate the feedback on the video.
------
danny3stacks
I have a few quick thoughts about why you're not getting many sign-ups.
The copy on the landing page makes sense, but it's still confusing in a way.
Maybe if you had a small diagram or brief description on how this is done,
people might be more interested.
But, if I was interested I would be weary of oauthing on twitter because I'm
still not sure what or how you do what you claim to.
The video should probably be less than 60 seconds and should answer what the
service does, how, why, for who in the first 20 seconds.
Stumbleupon traffic doesn't work well. People are simply browsing from one
site to the next looking for articles or funny cats and your bounce rate using
SU is probably 100%.
Google ads might work but you might be better off getting on
<http://betali.st> and <http://startupli.st> to get those early adopters.
Best of luck!
~~~
psg
Thanks for the links, as well as the feedback. I have been wondering if oAuth
with Twitter has been turning people away, so definitely appreciate the
comment and will look into straight email.
------
toddwahnish
Just my 2 cents,
Your join button is pretty muted- it's gray, it's small, it's in the corner
and it's surrounded by the same blue color that sits in the background. Try
A/B testing by moving the join button to the center of your top banner, making
it big and green.
:)
~~~
psg
Thanks. I've been testing different text throughout, but haven't looked at
button placement. Will definitely look at that.
------
patheman
hey, some feedback:
\- on first glance i don't get the idea of the site, somehow not even
compelled to start the video (maybe try a more "compelling" preview-screen
there)
\- some "bussines buzzwords" like Online Conversation and Audiences . .. maybe
try a quote instead (ask a friend if you dont want do make one up) in the
quote, state the one or max. two TOP benefits i have from the site.. and also
give me a hint who needs your thing. like: "lloquy helps me maximize my
readers engagement.." (Jon Doe, BigBlog.com)
\- signup might increase with a green or orange signup button, conveys success
and gets attention
I think you really need a 1-sentence pitch to tell whats the benefit for me as
a user? (answer for what? so what? now what?)
Best regards Patric
~~~
psg
Thanks Patric. A more compelling preview screen is something that hasn't even
crossed my mind (Sometimes it's the little things). Also appreciate the other
feedback.
| {
"pile_set_name": "HackerNews"
} |
T-Mobile CEO to users hiding their hotspot tethering activities: “It's over.” - atomical
http://www.zdnet.com/article/t-mobile-ceo-to-hackers-stealing-hotspot-data-its-over/
======
brandon272
I always find it amusing when these issues come up and people need to remind
us all that "UNLIMITED SHOULD MEAN UNLIMITED!" ... I've always assumed it was
common sense that "unlimited" is essentially a marketing buzzword.
No network is capable of offering "unlimited" service to all customers. It
means they aren't going to enforce draconian caps on every day usage. It's to
give the typical user the reassurance that they have nothing to worry about in
terms of overage. It's not to provide people with 2TB a month of transfer.
Frankly, I find using 2TB a month on an "unlimited" plan to be abusive and
disrespectful to other customers. These networks obviously have real limits
and capacities. Clearly abusing an "unlimited" plan does little but encourage
service providers to enforce data caps and overage fees.
~~~
userbinator
_These networks obviously have real limits and capacities._
There are only real limits in terms of bandwidth, and not the quantity of data
transferred.
~~~
snuxoll
You are 100% right. Unfortunately, due to the way wireless spectrum works you
have no choice but to oversubscribe available bandwidth in the hopes that not
every user is using their devices at once. While they suck for a consumer,
limits on total data transferred allow wireless providers to allow users the
ability to use their devices but limit the _amount of time_ they are consuming
available bandwidth.
------
duaneb
The idea that data can fundamentally change based on how it's viewed, legally,
is absurd. I hope this trend passes quickly.
~~~
snuxoll
> The idea that data can fundamentally changed based on how it's viewed,
> legally, is absurd.
Data itself doesn't change, usage patterns do, and that is why restrictions
like this exist. My internet connection at home is a reasonably fat 75/5Mbps
'business-class' pipe, I'm paying for a service that expects pretty high usage
and the infrastructure is designed to handle it - the coaxial cable going to
my house has enough bandwidth and so does the fiber going from the local cable
node back to the big datacenter where my traffic eventually gets routed to the
rest of the internet.
Mobile has an extremely annoying limitation in that we can't just run a cable
to every phone, we want stuff to happen wirelessly! Well, since there's no
wires providing service every user has to in essence share the same bandwidth
coming from a cell site. We can make sure there's plenty of fiber going to
each site, but physically 10Mhz of spectrum can only provide so much
bandwidth, and that is a huge limiting factor of wireless service.
Your 3-6" smartphone has very different usage patterns compared to my 13"
ultrabook. You may watch a couple youtube videos, stream some music, maybe
even watch a movie on Netflix - but you are unlikely to do so for extended
periods of time or on a frequent basis, the usage is very sporadic and lends
itself well to sharing with other users.
Usage on a tethered laptop or other device is very different, I'm sitting down
right now connected to my work VPN 'getting stuff done', checking email,
moving large files around, downloading an update for Visual Studio, the list
goes on. And this is not something that I do for 10 minutes or even an hour,
this is my entire work-day, and I regularly use 10's of Gigabytes of data,
something our limited wireless spectrum is not well suited to handle for a
large amount of users (that's what WiFi is for!).
Unless nationwide we are going to turn a large enough block of wireless
spectrum into a national wireless ISP (we're talking probably 100-200Mhz) we
simply do not have enough bandwidth over the airwaves to support people with
these usage patterns.
~~~
duaneb
This strikes me as preemptive optimization. That's a lot of argument to back
up, though I think it has merit.
I would feel much more comfortable with straight up metered internet,
variably-priced based on current congestion. I would feel much more inclined
to believe you if it didn't look like the service providers were trying to
change the meaning of internet access—it shouldn't matter which kind of device
is "plugged in". That's just terrible service.
~~~
chc
In what way is it possibly beneficial to me as a user to have metered Internet
for all cases rather than unlimited for most cases and metered for others?
~~~
duaneb
Because, when I look around, I don't see internet being offered at a e.g. per
GB rate. So I don't think your dichotomy is correct; I think people WOULD look
quite favorably on metered tethered data with up-front costs as opposed to a
cap with hidden metered fees or retroactive fines.
However, even if it WERE correct, I much prefer to think of internet as a
service. It is incredibly frustrating to deal with tiers that are only slowly
approaching the reality _they use to defend the tiers themselves_. I'm very
open to the idea that bandwidth might be a dominating restriction, but the
optimal way to deal with it would be a) transparency and b) incentivizing
avoiding congestion. However, I'm afraid to tether my computer and actually
take advantage of the service I'm paying for since the tools are horrible to
actually figure out what the costs might be or how to avoid them.
~~~
chc
T-Mobile offers apps with up-to-the-minute accounting of your usage, and at
least with me, they were quite explicit about how everything is priced. It
doesn't seem that hard or scary to me, and I've never gotten "shock" bills
from them.
------
drivingmenuts
Seems to me that T-Mobile should not be able to tell me how I use my device.
The device-to-device connect (hotspot) occurs on my hardware and doesn't
involve them. The data usage is _all_ mobile usage after that, since it's
coming thru my phone.
Now, T-Mobile may object to certain kinds of traffic (torrents, etc.) but that
opens up a whole different can of worms. If the high-volume data consumers are
_actually_ causing a problem for other users, then T-Mobile probably should
consider expanding their bandwidth with new equipment.
Trying to squirm away from the term "unlimited" because of a few inconvenient
users with inconvenient bits, however, is just weaselly as hell _and_ avoiding
the real issue.
~~~
chc
If it seems to you that T-Mobile should not be able to tell you how you use
your device, then it seems to me that you should not sign a contract granting
T-Mobile that permission.
~~~
brandon272
Consumers never look at that side of the equation. They don't read their
contracts, they don't do their due diligence. They just blame the company and
claim the role of victim when something doesn't work out in their favour or
when the company does things like ask people to not abuse the network.
~~~
teacup50
The party with more resources has the advantage -- information and power
asymmetry falls in their favor.
_Of course_ consumers don't "do their due diligence", because they'd have to
do so 1000s of times a day. This is a large part of why we have consumer
protection laws in the first place.
~~~
brandon272
I don't sign 2 year cell phone contracts "1000's of times a day" and when I do
sign them I read them because they're really not that long. And if I don't
read them and something doesn't work out in my favour I don't pretend it's the
phone company's fault.
Consumer protection laws do not remove all responsibility from the consumer to
be aware of what they are getting into.
~~~
teacup50
What percentage of consumers do you think are capable of reading contract
language accurately, assessing risk/value, judging things like how much
bandwidth they use, doing what, and how that may increase or decrease?
Likewise, how many lawyers working for cell phone companies are capable of
reading contract language accurately? How capable do you think cell phone
companies are at projecting data utilization based on the huge trove of
customer data they have available to them?
Requiring honesty around simple terms like "unlimited" helps level that
playing field, at least in some small way.
------
doki_pen
I don't think it would hurt their business to say something like :
120GB of data (compared to verizon's 12GB)
If they are being honest and really are only worried about people using 2TB,
then this should solve the problem completely.
120GB would be unlimited for 99.99% of users.
~~~
gkanapathy
They actually do say "unlimited phone, and 7GB tethering". It's very explicit,
and limited tethering is a specific part of the "unlimited phone" plans. And
as the article says, if you want more tethering, you are able to add and pay
for that separately. The issue is people bypassing the tethering limitations.
------
roddux
This is the reason that I always take a very sceptical view on mobile
contracts that offer "unlimited" data.
I wonder if they'll be allowed to continue calling it "unlimited" here in the
UK after this revelation.
~~~
DanBC
ASA ruled that unlimited doesn't mean unlimited and can be used in adverts
when referring to limited plans.
[https://www.asa.org.uk/News-resources/Hot-
Topics/~/media/Fil...](https://www.asa.org.uk/News-resources/Hot-
Topics/~/media/Files/ASA/Hot%20Topics/Broadband%20hot%20topic.ashx)
All you can do is keep sending complaints and encourage others to keep sending
complaints. They do, apparently, occasionally take notice of complaints.
------
briantakita
Labeling people as thieves is manipulative & hypocritical when the marketing
literature claims "unlimited" data.
All TMobile needs to do is tell the truth & have a reasonable plan for high
bandwidth customers. Instead they treat these customers like criminals & turn
into the data gestapo.
In the meantime, TMobile seems to be quite profitable.
[http://www.wsj.com/articles/t-mobile-raises-subscriber-
growt...](http://www.wsj.com/articles/t-mobile-raises-subscriber-growth-
outlook-1438257047)
------
joezydeco
Wait - so TMO monitors your data usage and throttles you down when you exceed
your cap on a _phone_ , but doesn't do this for hotspots and trusts the
hotspot to police the data cap?
~~~
StavrosK
No, I think the phone sends a certain bit to their servers when you're
tethering, to say "this data is from tethering", and they only allow a certain
cap for that. These "omg hackers" found a way to prevent that bit from being
sent, forcing the carrier to make good on their promise of "unlimited data",
which the carrier doesn't want to do.
~~~
mmcclure
> forcing the carrier to make good on their promise of "unlimited data"
I'm on the fence about what I think about the announcement itself (because of
the implications around enforcement), but this is a pretty untenable argument
if you want to get into "promises", or, who's really breaking their contract.
Contractually, the promise is unlimited data _without_ tethering. Explicitly.
If we want to talk about who's breaking what promises by rooting phones to
bypass tethering data limits, it's actually the "omg hackers".
~~~
StavrosK
How do they know it's people tethering? How do they know it's not someone just
doing all their downloading on the phone and then transferring it to the
computer or whatnot?
The only clue they have that these people were tethering was that they used 2
TB, but they may just as well have been watching a lot of Netflix on their
tablet.
~~~
jsnell
> The only clue they have that these people were tethering was that they used
> 2 TB
That's not true, and it's kind of uncharitable of you to assign malice and
technical incompetence to T-Mobile. There can be all kinds of differences in
the tethered traffic patterns vs. native phone traffic. For example:
\- Differences in IP TTL of packets
\- Differences in TCP options, advertised windows, and so on
\- Differences in packet ordering / RTTs (if you've got interleaved TCP flows
one which is terminated at the phone and one which isn't, you'd see the
terminated packets being acknowledged sooner)
\- Differences in the application layer data (for example the user agent
field)
The people who are camouflaging their tethering would of course try to apply
countermeasures against as many things as possible. But if they miss one kind
of fingerprint, it could be used to detect the tethering. That'd be the case
if it's a signal that'd be hard to deal with by a realtime automated system,
but requires some kind of expensive offline analysis.
------
mrrrgn
I noticed that when I hit my tethering cap, and start seeing an upsell page,
my Linux vms can still access content like normal. Seems that they do all of
their fancy tracking via user agent strings and consider Linux browsers as
being smart phones.
If true, it means that Linux users might end up getting accused of being ToS
breaking "hackers." Beware.
~~~
iotku
I wouldn't be surprised if how these "Hackers" were getting around the data
limits was far from sophisticated.
I've ended up getting around somewhat similar restrictions accidentally due to
poor implementations.
------
NovaS1X
Can someone clarify this for me (still haven't finished my coffee yet): If
T-Mobile is offering "Unlimited Mobile Hotspot" data as a part of their plans
then how exactly is this stealing?
~~~
JohnTHaller
They don't advertise unlimited hot spot. They advertise unlimited data for
your mobile device and 6gb of hot spot data. Some users are cheating and
masking their hot spot data used by multiple PCs and sometimes servers to get
around the 6gb limit without having to pay for the additional hot spot data.
~~~
thescriptkiddie
You actually don't have to do any masking, it just works. It's not like your
phone tells T-Mobile's servers when you start tethering, or they can detect
tethering through DPI. It all looks the same to them. So when they accuse
customers of "cheating" because they neglected to obey a hidden clause in a
contract they didn't read, it comes across as insulting.
~~~
ryan-c
Android's built in tethering absolutely does explicitly tell T-Mobile you're
using it. [http://danielpocock.com/android-betrays-tethering-
data](http://danielpocock.com/android-betrays-tethering-data)
| {
"pile_set_name": "HackerNews"
} |
A startup’s plan to sell solar like cell phones - FluidDjango
http://gigaom.com/cleantech/a-startups-plan-to-sell-solar-like-cell-phones/
======
amalcon
From a marketing perspective this seems absolutely genius.
From an engineering perspective, it seems completely backwards. The coupling
between the actual cost of the system and what the user pays is minimal:
drawing more power doesn't actually increase wear on the solar cells. Really,
all they have done is wired a meter whose sole purpose is to waste electricity
if the user isn't paying.
If it works, and if it successfully brings electricity to people who would
really benefit, I can't argue with it. It just seems so very wrong from an
engineering perspective.
------
dmbass
Doesn't this model work for cell phones because they are really cheap and the
provider doesn't care if they get lost/stop paying? Afaik solar panels are
expensive to make so how does this make any sense?
~~~
meow
A 50W solar panel isn't all that costly (150-200$). This model is just a way
to 'loan' these devices for consumers who can't afford even those. You will be
surprised by how much utility these small capacity solar panels might provide
even for those Indian consumers connected to grid (if they provide 2 lamps/ 1
fan as mentioned). This is because in rural areas, power cuts of around 8
hours/per day are very common.
------
dfxm12
I wonder what their overhead is for going to rural areas to install/service
these devices.
~~~
GiraffeNecktie
Probably not too bad since labour costs in rural areas are very low. I'm not
sure what they are now, but unskilled labour used to be about $3 a day. I
remember when I was in India seeing guys climbing telephone poles with no
safety equipment whatsoever, just raggedy street clothes and flip flop
sandals.
------
mmatey
Curious how they would keep them from not just ripping off the meter?
~~~
bobds
I wonder why they chose a pay-as-you-go system depending on how much energy
they use.
I think this would be much better as a rent-to-own program with a flat monthly
fee.
~~~
marquis
Seasonal work, summer hours, school and other needs take precedence over what
a family spends money on, on a month-to-month basis. Pay-as-you-go electricity
is common in some western countries and it is not unusual for there to be days
where the family cannot afford to top-up until pay-day again, where food etc
comes first as a primary need.
------
ww520
Cell phone can be cut off at anytime so as making it easy to link its access
to continuous payments. The company has little leverage against the cell panel
users due to non-payment.
~~~
justsomedood
These look like pre-paid power-minutes or something similar. So you pay for
500 minutes of power, and when you've used it all the power stops. When the
solar panel knows when you've paid for however many minutes are required to
"own" the device you stop having to buy minutes for it.
So they could run the risk of people just not paying for the device anymore
because they can't afford or don't want it anymore, or tamper with it to try
and get it working without paying it off. They'd still have the 10% initial
fee plus any minutes they paid for already.
| {
"pile_set_name": "HackerNews"
} |
Interview with "The Founder's Dilemmas" Author Noam Wasserman - tmflannery
http://startupharbor.me/2012/09/17/the-founders-dilemmas/
======
tmflannery
Fred Wilson asked for it a long time ago in this post:
[http://www.avc.com/a_vc/2011/09/moneyball-for-
startups-1.htm...](http://www.avc.com/a_vc/2011/09/moneyball-for-
startups-1.html). I think Noam hit it.
| {
"pile_set_name": "HackerNews"
} |
Ask HN: How to get a programming job as a twice exceptional? - twExceptional
https://en.wikipedia.org/wiki/Twice_exceptional<p>I have a CS degree. I have been unable to get a job for 2 years. I have obvious symptoms of being 2e. I usually fail the communication portion or get rejected due to low GPA. My tech skills are decent.<p>Are there any services that can help me?
======
mattbgates
I failed miserably when they gave me a math portion, but they still hired me,
because I knew the language and I was good at logic.
Anyways, you might want to try a job site like
[https://codefights.com/jobs](https://codefights.com/jobs) in which they test
you on your coding skills.
I would also suggest getting together whatever projects you have worked on and
your portfolio and resume.
Aside from that, I highly, highly recommend you go back to the college you
graduated from and see a career counselor. Why do I recommend this? They can
likely help you with your interview skills and personality. (Believe it - a
sense of humor helps)
I'm convinced that personality plays a huge role in helping with the hiring
process, and since you claim you fail the communication portion of your
interview, it may be that you just need some help with your people skills.
While GPA matters slightly, a good personality can probably explain yourself
out of why that isn't important in who you are.
Additional advice:
\- Make sure you have nice clothes to wear to the interview with a nice pair
of shoes. (hopefully a strong resemblance to what you will be wearing and feel
comfortable in, business casual)
\- Make sure your hygiene is on par along with a nice smelling cologne (if you
know any women at all, ask them if they could come shopping with you or find a
woman at the store -- the clerk who will likely be standing near the cologne /
perfume section -- and ask her for an appropriate "business casual cologne")
\- Make sure you appear confident (even if you have to spend hours in front of
the mirror practicing)
| {
"pile_set_name": "HackerNews"
} |
AresDB: Uber's GPU-Powered Open Source, Real-Time Analytics Engine - Recovery2020
https://ubere.ng/2HzMPVK
======
uberemployee
When I worked at Uber, this project was openly mocked. One of the CTO’s
biggest failures was implementing a promotion scheme where you needed to
create a new service in order to be considered “innovative”. This promotion
scheme marked what I consider the end of Uber’s engineering excellence and the
start of what made Uber turn into a bureaucratic mess.
One of the VP’s of engineering called it “toil vs talent”. People who “toiled”
at work, meaning doing good maintenance work, would be rewarded with good
bonuses but those with “talent” would be rewarded with promotions. Of course
this drove people to come up with fake new services so that they could
demonstrate “talent”. This also lead to an explosion of new services that
overlapped or did nothing useful. Instead of working together, groups would
make new services instead of working with existing service-owners because they
needed to justify writing a new service. It was sickeningly transparent.
This project was one of those projects. It has no real use case because why
the fuck would we want to use GPUs except to look cool on your resume. The sad
thing is that the projects is overstating how well it’s being used internally.
Internally people use Pinot instead of this.
For all you future CTOs, consider your incentive schemes carefully and don’t
be so far removed from the action that you can’t see when your org is rotting.
This is what the CTO did, and like I said, it was one of his biggest failures
because it gutted the engineering org. Instead of working together, every team
was looking at get promotions at the expense of the company and it showed.
~~~
PragmaticPulp
I wish I had understood this earlier. My past company made a push to hire from
top companies like Uber for some key positions. Some of them were great people
who were relieved to be out of the FAANG rat race. Others were single-mindedly
focused on rewriting everything they touched with cleverly-branded project
names, regardless of whether or not it made business sense.
Early I on, I made a harmless comment in Slack about how one person’s pet
project wasn’t a good fit for our needs so our team would be using the older,
more proven solution. Later that evening the person pulled me aside, almost in
tears, begging me to never say anything critical about his project in a Slack
channel again. He explained that at his previous role, success or failure
depends entirely on the perception of one’s personal projects and that
seemingly innocent comments could tank someone’s promotion chances for years.
I felt bad for him because he had clearly come out of a toxic situation.
However, one of his teammates later warned me that he was keeping a journal of
potentially incriminating things that I had said in Slack and a detailed log
of every issue that he could find with our team’s project in case he “had to
use it against me later”.
I could never tell if this was a unique experience or the norm at some
companies like Uber.
~~~
uberemployee
What you describe was definitely not a common occurrence. Engineering wasn’t
toxic for many years until the last 9-12 months or so I would say. Pre-Susan
Fowler memo, it was the best company I had ever worked at. From 2017-2019 we
sort of stalled because of the internal drama and it didn’t get really bad
until the last 9 months, where attrition of our best engineers and vile
political maneuvering from the dregs made it too much for me to stick around.
The engineer you describe sounds like they have mental health issues. There
may be some teams with terrible managers but all companies have this, and I’ve
seen similar or worse situations at Amazon.
Most engineers I worked with were great but there were many engineers that
“played the game” in order to get a promotion and more money. It was sickening
but if that’s the way the CTO sets the incentive scheme, who can blame an
engineer for following it? It’s more on the CTO for setting the terrible
culture than the engineers.
~~~
kamaal
Being blind to politics rarely ever means politics isn't going on.
Pretty much every company out there has a concept of _' promotion packet'_,
its basically building a case for one's promotion. Of course in a company the
budgets are fixed, and so are promotion cycles(yearly in most places). You
miss out a turn, you could lose an year, or even risk losing two. In that case
its fairly common for managers to build a list of
accomplishments(file/packet), and rival managers to build a anti-case/defence
for the same. Stack ranking eventually is all about a combination of
merit+advocacy+lobbying+counter-lobbying at so many levels that I'd say the
engineer who cried wasn't wrong at all.
This is the case in nearly every company. We just wish to delude ourselves
that politics is absent at some places.
This sort of power play comes with the territory in a large people structure.
------
statictype
> Like Pinot, Elasticsearch is a JVM-based database, and as such, does not
> support joins
Uh. What does the JVM have to do with the data model’s ability to do handle
joins?
~~~
EdwardDiego
Yeah that's a very odd statement, I mean, PrestoDB, Impala, KSQL...
------
einpoklum
GPUs and analytic DBMSes / query engines are actually my own field of research
([https://eyalroz.github.io);](https://eyalroz.github.io\);) and it's
obviously beyond what a comment would encompass, but:
1\. There are very few analytic DBMSes which are actually fast (and compare
against reasonable baselines). Most claims of speed are bogus. Or rather,
might be better than what's otherwise available to use, but are still slow.
2\. Designing an analytic DBMS to properly utilize a massively-parallel
processing device is a monumental task, and I would claim that it has not yet
been undertaken. Existing research and production systems graft such use onto
a system whose fundamental design dates back to the 1980s in many ways.
3\. CPU-utilizing anallytic DBMSes are typically faster than GPU-based ones,
to a great extent due to the above - but also since we've had decades of work
on optimizing them.
4\. GPUs are artificially handicapped on Intel-architecture systems, because
they are placed "far" from main memory relative to the CPU. More literally -
the bandwidth you get t between your GPU and main memory is typically 0.25x
the bandwidth a CPU socket has with main memory. This is critical for analytic
query processing (as opposed to neural network simulation which is more
computation-heavy and can tolerate this handicap much better).
\--
PS - Always glad to discuss this further with whoever is interested.
~~~
bronxbomber92
How much would the trade offs change if GPUs shared the same main memory as
CPU?
~~~
einpoklum
Not sure I understand exactly which trade-off you're referring to, but on
systems without the GPU-handicapping (e.g. IBM Power; and also when you put
link up many GPUs together with NVLink) - there is still a significant design
and implementation challenge to produce a full-fledged analytic DBMS,
competitive vis-a-vis the state-of-the-art CPU-based systems.
There are also other considerations such as: The desire to combine analytics
and transactions; performance-per-Watt rather than per-processor; performance-
per-cubic-meter; existing deployed cluster hardware; vendor lock-in risk; etc.
------
social_quotient
Curious - what’s the use case for an organization like Uber needing real time
analytics at high frame rates? I noticed the emphasis on dashboards but was
curious what a real-time dashboard at this scale actually ends up being used
for.
Maybe my question is more around, what business decision would be impacted by
not having real-time instantly reserved dashboards.
Honest question here not trolling.
~~~
Donald
All sorts of departments at Uber use real-time queries (operations,
marketplace, eats, new mobility, their data science and growth group, finance,
communications, legal.) Marketplace in particular has a demand for real-time
prediction, matching and dispatching, and pricing queries.
~~~
bogomipz
I understand why any marketplace-based system would need real time data but
why would any of "growth group, finance, communications, legal" require real-
time data to do their jobs?
------
ed25519FUUU
It must have been fun to be at Uber 2017-2019. They seemed to have an
unlimited appetite (and funding) for “invent it here”, and a lot of those
projects made it into open source.
~~~
tyingq
I'm sure it was fun, but it does seem to point at a lack of focus. I suppose
that's hard to resist when there's an endless pipeline of money.
------
uberOG
I worked at Uber before. The team and the project is pretty much gutted after
last couple layoffs. Check the commit history/contributors and go figure.
It was some amazing tech, but it falls into the category of "when all you have
a hammer, everything looks like nail". sometimes you really need a company
culture to reward people for creating values instead of deliverable for
promotion
------
DevKoala
Does anybody with Clickhouse experience at scale know if AresDB is better on
some use cases?
~~~
hodgesrm
It's hard to say, though I think the UPSERT capability looks useful because it
simplifies handling duplicates. On the other hand it does not appear that Ares
offers clustering, which is critical for large datasets.
(I work on ClickHouse and enjoyed this article when it came out.)
~~~
einpoklum
It should be mentioned, to ClickHouse' credit, that they made an effort to
publish relatively detailed benchmark results for a some data sets and
queries, when they first came out. They even got in contact with my research
group at the time (the MonetDB group at CWI) to make an effort to present the
MonetDB results in a fair manner.
------
kuharich
Past comments:
[https://news.ycombinator.com/item?id=19028860](https://news.ycombinator.com/item?id=19028860)
~~~
ramoz
> GPU databases are brilliant for cases where the working set can live
> entirely within the GPU's memory. For most applications with much larger (or
> more dynamic) working sets, the PCIe bus becomes a significant performance
> bottleneck. This is their traditional niche.
> That said, I've heard anecdotes from people I trust that heavily optimized
> use of CPU vector instructions is competitive with GPUs for database use
> cases.
This comment is important imo. Also related to applied ML inference in
applications... the memory needs can grow quite a bit and this data transfer
cost, including the memory size limitations vs RAM, becomes very real very
fast.
Not sure I understand the scale of the use case or where it's mentioned as
well as in comparison to the big data tools mentioned.
~~~
kanwisher
Next gen Nvidia 30x0 series, can have direct access to SSD without hitting the
CPU. In that case would they be any worse than cpus on any workloads? I guess
you could still have larger ram amounts on the cpu, albeit slower ram usually
~~~
WanderPanda
Wow nvidia is selling SBCs now?
~~~
ReactiveJelly
No, there's a new thing about giving GPUs some kind of DMA to storage. And
it's pointless on HDDs, so it's only discussed in terms of SSDs.
Microsoft is bringing the DirectStorage API from XBox to Windows, Nvidia calls
theirs RTX IO. I think they're the same class of idea, like Vulken vs. Metal.
They do have SBCs, I think, but other than being the basis for the Nintendo
Switch I haven't heard much about them.
------
briandilley
> Like Pinot, Elasticsearch is a JVM-based database, and as such, does not
> support joins and its query execution runs at a higher memory cost.
What does the JVM have to do with joins?
------
kevsim
> In the past, we have utilized many third-party database solutions for real-
> time analytics, but none were able to simultaneously address all of our
> functional, scalability, performance, cost, and operational requirements.
Completely original excuse for an over-staffed engineering organization to
justify doing some crazy stuff.
------
grej
Does anyone know how this compares to the RapidsAI project called BlazingSql?
~~~
roaramburu
Howdy, full disclosure I'm the CEO at BlazingSQL (BSQL).
I'm not incredibly familiar with Ares save the linked article, but we aren't a
DBMS or manage data in any way.
BlazingSQL is a SQL engine, it's easier to think of it similar to SparkSQL,
Presto, Drill, etc.
We're core contributors to RAPIDS cuDF (CUDA DataFrame), which is a Pyhton and
C++ library for Apache Arrow in-GPU memory. The Python library follows a
pandas-like API, and the compute kernels are in C/C++.
BSQL binds to the same C++ as the pandas-like cuDF. What this enables users to
do is interact with a DataFrame with either SQL or pandas depending on their
needs or preferences. This interoperability means that the rest of the RAPIDS
stack can be applied to a variety of different use cases (data viz, ML, Graph,
Signal Processing, DL, etc), with the same DataFrame.
The DataFrame also has performant libraries for IO, Joins, Aggregations, Math
operations, and more.
Here is an example of running a query on ~1TB on a single GPU in under 9
minutes. The data was stored on AWS S3 in Apache Parquet.
[https://twitter.com/blazingsql/status/1303370102348361729](https://twitter.com/blazingsql/status/1303370102348361729)
Here is an example of scaling that same query up to 32 GPUs and running it in
16 seconds.
[https://twitter.com/blazingsql/status/1304450203030880257](https://twitter.com/blazingsql/status/1304450203030880257)
Again, think of BSQL as a query engine, that runs queries on data wherever and
however you have it. Here is a BSQL user running 1-2 minute queries on 1.5TB
of CSV files using 2 GPUs.
[https://twitter.com/tomekdrabas/status/1303824164273270789](https://twitter.com/tomekdrabas/status/1303824164273270789)
Let me know if that helps at all (or not).
------
shaklee3
This should have the 2019 tag in the title
| {
"pile_set_name": "HackerNews"
} |
Netflix is down. Some tweets say scheduled maintenance on Sat Evening. Wtf? - BIackSwan
https://twitter.com/#!/search/netflix
======
hollerith
Was up for me first time I saw this submission, but a few minutes later it
went down, saying "Streaming is temporarily unavailable."
------
chokolad
Up and running for me right now.
| {
"pile_set_name": "HackerNews"
} |
Is this research on Roundup as damning as it looks? - aethertap
I started reading this paper [1] on the effects of glyphosphate and quickly realized that I'm way out of my depth here. The claim they make is very bold, basically that glyphosphate inhibits a critical enzyme (Cytochrome p450), ultimately leading to many of our modern diseases through a process that damages gut microbes.<p>While I'm not a fan of glyphosphate or the model of agriculture it supports (for other reasons not relevant here), I don't know anywhere near enough about biochemistry to know whether there's any merit to this paper's conclusions. Are there others in this community who can shed some light on this?<p>[1] http://www.mdpi.com/1099-4300/15/4/1416
======
PaulHoule
Well, Cyto P450 is involved in the detoxification of drugs such as
dextromethorphan. Two important things about it are: (1) it is possible to
overwhelm P450 activity which will slow down the metabolism of other
P450-metabolized drugs (drug interactions) and (2) a big chunk of the
population (I think 10-20%) have insufficient P450 function and they
metabolize P450-toxins slower than most other people.
Of course the dose makes the poison. It's not a good idea to guzzle roundup.
It's not particularly persistent and I don't think you're at a risk of eating
it from food or spraying roundup to kill a weed now and then.
| {
"pile_set_name": "HackerNews"
} |
AWS Costs Cheat Sheet (Updated) - edbyrne
https://cloudvertical.com/cloud-costs
======
pixeloution
This is a very nice tool, although it should really have "include upfront
amortization cost" checked by default, otherwise the "75% savings" for a
1-year heavy reserve is very misleading.
I'd previously done the same on a spreadsheet but its nice to have this tool
instead.
~~~
edbyrne
Thanks for the feedback. We can enable by default no problem - we just left it
out since the upfront cost is included in the list.
I had a spreadsheet prior to this too ... that's why we decided to publish it
(and programmatically keep it updated so it's always right - spreadsheets are
tiresome to maintain!)
| {
"pile_set_name": "HackerNews"
} |
The Hidden Co-Founder - remyt
http://techcrunch.com/2015/03/05/the-hidden-co-founder/
======
rifung
It's fascinating that some founders will always post things like this, "I
don’t think true work/life balance is possible in the day-to-day reality of
startups" and yet others say that there's really no need to sacrifice work
life balance even at a start up, and that if you are working yourself to
death, you aren't working smart.
I suppose there's not necessarily a right answer.
~~~
onion2k
People who say it isn't possible to maintain a work/life balance in a startup
are usually those who find it hard to delegate - they don't have people around
them that they trust to do as good a job of something as they do themselves so
they refuse to hand responsibility to other people or accept that they aren't
the best person for the job.
In a small startup that's fine because there aren't that many things to do. A
founder _can_ be the developer, support, strategist, and marketer all at once.
Arguably it's even a good thing at that stage because it keeps the burn rate
down. The problems arise when there's too much growth for the jobs to be all
be done, or even just overseen, by a founder. Then they struggle and start to
hold the business back.
A good founder is always be looking for people who are _better_ than they are
to hand things over to. That's how a business succeeds.
~~~
louischatriot
Absolutely. It's crucial for a founder to be able to take a step back and
think strategically. Being always under water and completing task after task
prevents you from seeing the big picture and taking the big decisions.
------
davidw
If you're interested in this kind of thing, Sherry and Rob Walling have been
doing a nice podcast here: [http://zenfounder.com/](http://zenfounder.com/)
Highly recommended, although I hope that sooner or later they'll add a
transcript.
------
thomasatethose
isn't this just a different way of saying success is who you know, not what
you know?
also what do you do if you don't have any of those support systems or
connection networks?
| {
"pile_set_name": "HackerNews"
} |
The Economy According To Mint - bd
http://www.techcrunch.com/2009/01/30/the-economy-according-to-mint/
======
vaksel
if their average user spends $4,000 a month(before savings etc), wouldn't this
mean that this data is pretty much useless? I mean sure it might help you
identify some middle class families trends but thats about it
Based on that data an average minter makes at least $4,100 x 12 * 1.33(to
account for taxes) = $65,436...and thats specific spending, who knows what %
of their income gets saved or invested.
So thats the 10% or so of the population who are well off, what about all
those people making less than 70-80K?
~~~
sangaya
The data is likely limited in scope by more than just income. For instance,
its a web-based startup. This means that users of it are more likely to be
tech savvy. It also means that the users are younger, which gives the baby
boomers a weaker representation.
Mint is also a money management site, so by it's very nature it's users are
interested in properly managing their money. People who care about proper
money management are probably doing a better job of making/saving/investing
it.
My life experience is limited (I'm only 24) but from it I can say with
confidence that the majority of people in my community, family, school, etc
are not tech savvy, don't worry about managing money, and frankly most still
believe that if you can't buy the software at bestbuy or walmart it's not made
by a reputable company.
~~~
jerf
Yes, this struck me as a classic example of how you can't just say "Look, I
have a huge sample, so it's statistically valid!" (1% is a huge sample by
statistical standards at this scale... or it would be if it were properly
random.) The bias in the data is strong and pervasive.
Having such a huge sample means that the data does at least mean _something_.
It does indeed tell us something about the habits of those likely to sign up
for that service, after all. It's just that converting that to the universal
data we're all really interested in is non-trivial, and if the bias is strong
enough, basically impossible if the projection of the noise dominates the
signal.
(In other news, this article worked. I'm seriously considering signing up. :)
Informative marketing, the best kind.)
------
jacoblyles
I wonder if they took into account normal seasonal variation in their data.
From the looks of it, they didn't.
It's mighty hard to draw conclusions from one year's worth of data. We see
consumer spending spiking again in December. Is it Christmas (.com), or is it
a recovery?
~~~
marketer
I completely agree. They claim this is a 'quantitative' analysis, but it's
really anecdotally describing a graph. They should have removed seasonal
variations, used a larger data set, and tried a couple time series models.
Maybe in a couple years, when they actually have more data, it will be more
meaningful.
------
BFalkner
It mentions that "the WSJ used our empirical data on bank fees to identify the
worst banking offenders" but no link to an article and I'm coming up short
with Google. Has anybody seen this?
------
jderick
~300$/mo for a financial advisor?
------
jupiter
This is very insightful and because it's real life data (as opposed to data
gathered/guessed/invented by agencies) it has authenticity. Patzer should be
official advisor to the government.
~~~
iron_ball
By 'agencies' I assume you mean government agencies; and by
"gathered/guessed/invented" I assume you mean government agencies are wildly
inaccurate. Citation needed.
------
socmoth
this is the best techcrunch article posted in ages. (we've had a negative
trend, just giving credit where it is due, even if it is just a guest
article.)
------
lionhearted
Anyone have numbers for revenue or projected lifetime value of a customer for
Mint? It looks like they've raised over $19m in venture capital and I like
what they do - I'd be curious how they're doing on money.
| {
"pile_set_name": "HackerNews"
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Sublime Git is a clean code editor for merge conflicts - bedros
https://thenextweb.com/dd/2018/09/21/sublime-git-is-a-clean-code-editor-for-merge-conflicts/
======
mockindignant
The product is called Sublime Merge.
| {
"pile_set_name": "HackerNews"
} |
Getting Started with Algorithmic Cryptocurrency Trading - jaynagpaul
https://jaynagpaul.com/algorithmic-crypto-trading
======
brndnmtthws
If you want to lose money, this is a good way to do it.
You're better off buying what you believe in and holding it. It's easy to fit
a perfect model to historical data, but it rarely works going forward, unless
you have insider information.
~~~
a13n
Can you expand on why you don't think algo trading with predictive algorithms
is a viable strategy?
GDAX has 0% fees on limit orders. Say you set a limit sell at +1% and a stop
loss at -1%. You could trigger a buy whenever you predict that it's >80%
likely to hit +1% before -1%.
Plug in everything you can get (trades, order book, etc) from GDAX's WebSocket
API into an RNN, and I'd guess you can be right more than you're wrong. Aka
profitable.
~~~
adjkant
Another interesting idea is that patterns can hold if the market is mostly
being affected by bots. Especially at the micro level.
Even basic ML/AI strategies can be easily profitable with the current
volatility. It drastically reduces the risk of the HOLD strategy, and while
not necessarily the top profits, can be much safer.
I've been running various algorithms for the past 4 months with varying
success (whole system homemade in Python), all profitable.
I'd also note that as mentioned elsewhere in the thread, what algorithm is
very important. This market is like few others, and thus I have found lends
itself to very different strategies.
~~~
a13n
See? Now there's a blog post I'd read!
------
scottmsul
I was hoping to see some discussion about market-making bots or arbitrage
bots, which I know for a fact can make money. Can these kinds of prediction
bots actually beat random chance? I assumed price fluctuations mostly followed
a random walk.
~~~
joosters
That's not really related to it being a bot, though. For any form of trading
(whether manually or through some form of automation), of course there's going
be some choice of buys & sells that return a profit.
How you choose such a profitable strategy is a huge area of discussion.
However, it's a completely different subject to the article, which is just
focused on the mechanism of running a bot.
------
bigiain
> # Install NPM dependencies
> $ npm install
So we know for sure that there's not a malicious leftpad.js getting pulled in
there that looks for and exfiltrates your exchange credentials?
Yeah - I'm not going there... Not anywhere near there...
------
oil7abibi
All this post is how to set up a github project. Nothing more. I’d hope to
rather see writing on portfolio management, risk management, or other
strategies.
That said, Zenbot actually provides a decent platform to start trading.
------
lvturner
Thanks for this - would be nice if the article included an example on how a
strategy was built, or how to add additional ones into the framework.
------
jiggunjer
I've heard of strategies where multiple accounts can collude to manipulate the
solo bots that make statistical decisions. Is this a real danger when
professional companies start getting involved in crypto?
~~~
a13n
Hmm, just looking at GDAX's API, you aren't able to tell who's making an
order. You don't know if it's one account with ten orders, or ten accounts
with one each. So I don't see why multiple accounts would be an advantage.
~~~
lvturner
One thing that springs to mind is that it would allow you to have POSITIONS on
both sides of the market, you could use this to create a series of small sell
orders that would lure the bots down towards a larger buy order.
You could do this by just placing orders, but I guess in some instances it
would be beneficial to be able to hold positions in both directions.
~~~
RandomInteger4
The API let's you take positions on both sides with a single account, or
prevent yourself from self-trades by setting a flag.
EDIT: Nvm, the flag just specifies what the behavior is in the event that the
system encounters a self-trade: decrement and cancel, cancel resting, cancel
incoming, cancel both.
------
locusm
This reminded me of Tradewave back in 2014, any idea what happened to it?
~~~
senatorobama
[https://archive.is/ZvE6z](https://archive.is/ZvE6z)
~~~
locusm
Thanks.
| {
"pile_set_name": "HackerNews"
} |
Show HN: An ATS with smart requirements, digital profiles and more - micael_dias
https://www.mropus.com
======
micael_dias
Hi guys, I've developed Mr. Opus in the last few years (with big breaks in
between) but I feel it's now in a good place to see the world.
Features: \- smart job requirements include professional field experience,
education experience, language spoken and country of residence. If the
applicant doesn't meet them, he can't apply.
\- digital profiles so you won't have to parse cvs as word documents anymore
There's quite a few features I want to add in the future but for the time
being, give it a try and let me know what you think! The first job opening is
free.
| {
"pile_set_name": "HackerNews"
} |
MSBuild is now open source on GitHub - pauljz
http://blogs.msdn.com/b/dotnet/archive/2015/03/18/msbuild-engine-is-now-open-source-on-github.aspx
======
jammycakes
The problem with MSBuild is that it tends to get used for things for which it
is not really designed.
MSBuild was originally designed as a file format for Visual Studio solution
and project files, generally intended to be managed by a GUI. If all you are
interested in is spitting out binaries, it works pretty well, and the fact
that it adds a ton of extensibility is actually quite useful.
It becomes problematic though when people try to use it to manage their entire
end-to-end build process -- running tests, generating reports, stopping and
starting servers, manipulating configuration files and so on. When you get to
that level you really need a proper scripting language with a clean, readable
way of expressing loops, conditions and subroutines, and that's where MSBuild
falls down -- XML is horrible for that kind of thing, and the declarative,
task-based paradigm simply isn't flexible enough.
Unfortunately, because of the all too common insistence of many .NET teams on
being spoon-fed by Microsoft, a lot of projects stick with MSBuild for their
entire end-to-end build process regardless, simply because they believe That
Is How Microsoft Wants You To Do It.
~~~
raverbashing
> XML is horrible for that kind of thing, and the declarative, task-based
> paradigm simply isn't flexible enough.
Of course! That's why the Java world uses maven
It makes no sense, but hey, it's XML
~~~
kyllo
Task running is more what Ant is for, isn't it? Maven is more of a dependency
management tool than a task runner. A lot of Java projects use both tools
together for builds.
I've never used it, but MSBuild sounds like Microsoft's version of Ant to me.
~~~
eropple
MSBuild has a lot of Ant-yness to it, yes. However, I quibble with your
definition of Maven as a dependency manager--it has one (and the independent
implementation that can work with Maven repos is Apache Ivy) but I've never
seen a Java project use both. Usually somebody jams some sort of runner into a
Maven project as a different build step or something.
~~~
kyllo
_Usually somebody jams some sort of runner into a Maven project as a different
build step or something_
Like this? [http://maven.apache.org/ant-tasks/](http://maven.apache.org/ant-
tasks/)
~~~
eropple
If you're lucky. I've seen a lot more home-rolled ones in Java.
~~~
kyllo
Yeah... I've also worked on corporate Java projects with no Ant, Maven, nor
hand-rolled substitute, where the build process was to download the
dependencies' jars from the internet manually into /lib.
------
MrZipf
IIRC MSBuild was the brain child of Alex Kipman, father of Kinect and
HoloLens. As legend tells it he lashed up a demo version over a weekend and
pitched it successfully in the corridor shortly thereafter. The rest is
history.
MSBuild is essentially a clone ant, and it's not a bad tool per se. For the
devdiv engineering team it allowed them to get off the horrible pre-msbuild
project files.
The messiness came with solution files (since VS uses solution files and
project files). Unfortunately, they left the also awful solution files around.
And this added an alternate way to specify dependencies between projects. VS
solution files are awful to maintain - just a bag of guids that makes
resolving conflicts very hard for humans and VS is poor at automatically
resolving them (very noticeable when you get >3 developers on a project).
The solution to the messiness would be to use an MSBuild project file instead
of a solution file. It'd have to conform to a schema VS understands, but it's
not rocket science. However, fixing this would require the VS source code and
MSFT to accept a patch.
Using Visual Studio, gui or command line, uses the MSBuild engine though the
VS wrapping does some internal caching that occasionally makes it wrong (ah!
There's a cryptic flag that fixes this).
~~~
stinos
_The solution to the messiness would be to use an MSBuild project file instead
of a solution file._
Read somewhere this is definitely on the dev team's list, but cannot find it
anymore. When building a solution it is first converted to an msbuild file
which is then built. So all that is left is to add VS gui support for such
files to treat them as project containers, and then it's byebye sln.
~~~
MrZipf
That's good news. I left MSFT last year and know some of the internal build
toolsets have their own similar solution, but it's not integrated with Visual
Studio.
------
rsuelzer
Fantastic. As a .NET Developer, who has been forced into doing Ruby and Java
development, I really miss the .NET framework and c#. I'm hoping that this
move toward open source will help more open-source projects adopt .NET. C# is
such a wonderful language and anything that helps make it more mainstream in
the open-source community is a Good Thing.
~~~
ryan-allen
As a .NET developer who has wholly abandoned Ruby and it's culture, I'm having
the time of my life!
C# and Visual Studio are seriously good tools. I'm using Typescript and
Angular, too. Good times!
~~~
ghuntley
This * 10000.
------
zaphar
I have a hate/hate relationship with msbuild as a build tool.
However the mono xbuild tool has subtle incompatibilities and holes in
functionality as compared to msbuild so for no other reason than having the
"same" build tool in mono and .Net I applaud this move.
------
serve_yay
I spent a lot of time with this thing in my career. I wish I had some nice
things to say about it. But I'm glad it is open source.
------
mattchamb
Nice to see this makes the old approach of using reflection to use msbuild
internal classes to parse solution files obsolete.
[http://stackoverflow.com/questions/707107/library-for-
parsin...](http://stackoverflow.com/questions/707107/library-for-parsing-
visual-studio-solution-files)
------
akandiah
Simply one of the worst development tools that MS has put out. Its problem is
that it's a hack-job - an attempt to make it in to a 'project' file that
Visual Studio can load and also where one can treat as a traditional (n)ant-
like build file. That's not to say that I think (n)ant is better, but it's
certainly not hacky and far better documented.
------
arrowgunz
Licensed under MIT, impressive.
~~~
ghuntley
All of the Microsoft technologies which have been open sourced over the last
couple months have been under MIT which is really strange actually as Mono is
licensed under LGPL2 which is actually more restrictive!
Fancy that, how times have changed.
~~~
masklinn
Wouldn't licensing under GPL limit their flexibility with respect to external
contributions? They wouldn't be able to use that in proprietary product, or
move the project's development back to a closed model.
~~~
hyperpape
Depends. Some companies use GPL with copyright assignment to control the
project: you can use it as a wholly open source product, but the company has
the right to do future development in a closed source way, embed it in
proprietary products, etc.
I don't know if that's likely with a build tool, but it happens elsewhere.
------
dclusin
Sort of off topic, but I've always wondered if github charges larger orgs for
hosting their projects like this. It seems like google and and microsoft get
tons of free bandwidth from github to the point of being unsustainable w/o
charging.
~~~
Negitivefrags
I would bet that it helps github far more than it hurts.
Having a company like Microsoft mentioning github all the time is great
publicity.
Also bandwidth for hosting code is so cheap to be practically negligible.
------
pionar
The worst part of msbuild has (for me) been the lack of documentation of
flags. Hopefully this will help.
------
ghuntley
MSBuild is great and all but seriously why bother when there's better
alternatives available - i.e. Fake?
[https://github.com/fsharp/FAKE](https://github.com/fsharp/FAKE)
~~~
Rapzid
I was curious to see what would happen with build systems when they first
announced the open source/cross platform. Initially I figured maybe something
like FAKE or scriptcs based so we could break away from msbuild and
powershell. But then they announced cmake and now this.
This was inevitable from the announcement last year, but I'm afraid the
community has not spoken on this, per say. One of the benefits of the open
source community is that ideas get to duke it out in the wild and the most fit
will survive. How long will we be saddled with msbuild? Maybe some brave
heroes will create an alternative some day? There is a lot of legacy stuff
that has not been properly vetted. Will be interesting to see what happens.
------
acqq
Really great news! For those who didn't do Windows programming, the MSBuild is
the "back-end" "make" engine behind the Visual Studio.
------
O____________O
Despite being a Windows developer for 90% of my career, I have no idea why
anyone uses MSBuild. I've created several automated build and deployment
systems, but I always used the command line Visual Studio interface.
Honestly, I don't know why anyone wants MSBuild. Poking around, people cite
not needing to install the VS IDE on build servers, but I see zero drawback to
doing that. Why would I want to maintain project dependencies, build orders,
and whatnot in two places, when I could just build in exactly the same way,
using the same solution/project files, on my dev box and my build server?
It seems to me that this is actually vastly more meaningful to traditionally
open-source LAMP developers who are considering C# and ASP.Net on Linux in the
future.
~~~
cssmoo
_> I could just build in exactly the same way, using the same solution/project
files, on my dev box and my build server_
Do you run VS on your production servers? Because that's where it will shit a
brick because you forgot to install ASP.Net MVC KB123123213 but the IDE
installed it as part of update 4. Etc etc...
This problem gets VERY deep.
~~~
O____________O
_Do you run VS on your production servers?_
Why would I have any build system installed on a production _server_?
~~~
snuxoll
For CI? Gotta run your builds somewhere, and a build agent is a production
application.
~~~
O____________O
What is CI?
------
pvsnp
This is really exciting move. I wonder if this would make compiling the .NET
core easier in OSX and Linux?
~~~
mattchamb
Interestingly, Roslyn already includes its own parsing/handling of visual
studio solution files:
[http://source.roslyn.codeplex.com/#Microsoft.CodeAnalysis.Wo...](http://source.roslyn.codeplex.com/#Microsoft.CodeAnalysis.Workspaces.Desktop/Workspace/MSBuild/SolutionFile/SolutionFile.cs,102)
~~~
ygra
Which is built on the MSBuild API. Which makes it a bit annoying to use
without the pre-release Visual Studio right now, as Roslyn is built against an
MSBuild assembly that doesn't exist on my machine.
~~~
khellang
See
[https://github.com/dotnet/roslyn/issues/212](https://github.com/dotnet/roslyn/issues/212)
------
michaelfeathers
It would be poetic if they put up Visual SourceSafe.
------
angersock
Perhaps we can use this to start making headway in the fight to get rid of
make, autotools, and cmake?
:)
~~~
moron4hire
I come from a Windows background. I've been having a need to do more C
programs lately, and I have generally been trying to migrate more towards
platform-agnostic configurations. I had started looking at CMake under the
promise of a cross-platform build system, but now I see a lot of non-specific
complaints about it. Is there something specific you can articulate that is
wrong with CMake, and what alternative is there for someone who A) wants to
build cross-platform, but B) with as native of tools as possible for those
platforms?
In other words, I'd rather not build with GCC on Windows.
~~~
angersock
Sure, I'll bite.
So, my issue with CMake is that I usually run into it with annoying academic
projects, or other weird shit--that doesn't matter, but what does matter is
that the code quality tends to correlate pretty well with my personal rage.
When I try to run it on Linux, sometimes it'll just fail because reasons
(looking at you, player-stage five years ago). When I try to run it on
Windows, I have to fiddle with settings, rerun it a few times, and only
grudgingly will it emit a project and directory for me.
And what it does emit? Almost never a properly organized project. Usually a
project with a name like "Project1" and some rando layout. Usually I can't
even figure out what #defines are being set, because it's hidden away.
I'd much rather people just write simple Makefiles (it can be done!), and a
few VS project files, and be done with it. CMake has never once, in the last
five years, ever resulted in me looking up from my machine going "Man, that
was such a good experience, I'm sure glad we have CMake!".
The JS ecosystem, as crackheaded as it is, is still not 1000th of 1% of the
annoyance as dealing with C/C++ using CMake.
~~~
moron4hire
Ok! Thank you. I think that makes a lot of sense.
~~~
angersock
No problem.
And to be fair, there are a couple of folks I trust who have had great success
with it--and yet, I never seem to run into those projects when I need them.
Cool VR stuff by the way...hit me up if you'd like to BS about it sometime.
------
voltagex_
Will this help CMake's ability to generate solution files?
~~~
dietrichepp
Solution files are easy. Project files (I think you meant project files) are
not too hard, if all you want to do is build. Integration with Visual Studio
is part of the equation, too.
~~~
voltagex_
From memory CMake was only producing VS 2010 project files which then had to
be fiddled a bit to upgrade them to 2012 - so a version bump would be
appreciated.
~~~
ihnorton
CMake supports VS2012-2015 natively in the latest releases.
------
julbaxter
What's the difference with Roslyn?
~~~
MichaelGG
Rosyln's a compiler/framework for certain language tools or something like
that. Msbuild is like a Make type tool that actually calls the compiler,
passes in flags and input files, determines what else needs to get done, etc.
~~~
julbaxter
Does it mean msbuilb uses roslyn somehow?
~~~
MichaelGG
I understand that Roslyn powers or is the C#/VB compiler. Yes, the build
system will often call the compiler as part of the build.
------
detay
Would this lead to a Visual Studio on MacOs/Linux one day? (I hope it would)
~~~
NoGravitas
It's more likely that it would make MonoDevelop more strictly VS compatible.
It already opens and saves .sln and .csproj files, but my understanding is
that going back and forth between VS and MD can lead to problems.
~~~
floatboth
I'm working on a pretty advanced solution right now (F# + PCLs), everything
works both fine both in VS and Mono's xbuild.
------
edandersen
Nobody is seriously going to fork this and create their own port of MSBuild,
possibly one of the most mocked and reviled parts of the .NET ecosystem. I do
however congratulate the ground level MS staffers on the effort it likely took
to convice the Risk and Legal departments that open sourcing something like
this won't make their business fail. That must have been trying.
~~~
cwyers
> Nobody is seriously going to fork this and create their own port of MSBuild,
> possibly one of the most mocked and reviled parts of the .NET ecosystem.
You're probably right. But it does mean there's one more part of the .NET
ecosystem that potentially runs on Linux and OSX, and that's probably the
reasoning behind this.
~~~
edandersen
The reasoning is likely that there is now an internal KPI for open sourcing
code because it helps MS PR.
~~~
cwyers
I doubt that it's anything as ephemeral as "public relations" that's driving
this. They want developer mindshare. Having developers writing for .NET means
more software available for Windows users and for Azure services. That means
more people buy Windows devices and Azure time.
------
steveklabnik
The, uh, first PR:
[https://github.com/Microsoft/msbuild/pull/1](https://github.com/Microsoft/msbuild/pull/1)
~~~
acdha
I wish he had a bit more empathy for whatever poor grunt at Microsoft had to
slog through the process of open-sourcing it only to get this in thanks
~~~
robashton2
I got loads of time for that, but I've also suffered at the hands of MSBuild
as have thousands of others so the PR seemed like a funny troll at the time.
Seriously - I remember at one client there was a specific machine set up to
edit the build on because it was the only one that could open the workflow
editor without crashing. Why there was a workflow editor to edit MSBuild stuff
I don't know but that's that world in a nutshell.
~~~
acdha
I don't disagree that people have problems with Microsoft products but I would
just suggest asking yourself whether the people who went to the trouble of
open-sourcing something are likely to want those problems to exist rather
than, say, engineers trying to do what they can at a big, complicated company.
Is it more likely that the person who reads a troll PR is going to say “I had
no idea everyone wasn't happy with this!” or that their boss will say “See, I
told you that releasing this was a waste of time”.
------
nickbauman
What the hell is MSBuild and why should I care?
------
edandersen
[https://github.com/Microsoft/msbuild/commits/master](https://github.com/Microsoft/msbuild/commits/master)
3 commits. Because MSBuild just happened.
The whole point of open source is that you get to go back and see how the
software evolved. Git blame. Everybody learns.
~~~
adamtulinius
The historic commits might contain things unsuitable for relicensing.
Also, never before have I heard such an absurd claim as to what the purpose of
open source is.
~~~
iso8859-1
I think it is an interesting perspective. What would you say the purpose of
open source is? If not purpose, you can call it an attractive property.
Let say you have the sources of an algorithm implementation, but they are
unreadable because the variables are not named, you don't know the name of the
algorithm getting implemented and so on. Of course this is a lot harder to
understand than code which cites its references (like papers and so). Wouldn't
this qualify as being able to "see how the the software evolved"? Granted, VCS
history is only a small part of this, but I think it may help cause it would
show what improvements were done, which shows the direction of the project,
showing what's important. A large part of being a good programmer is knowing
what NOT to do. If you see what others failed to do, don't you think that
helps?
~~~
dragonwriter
> What would you say the purpose of open source is?
The Open Source Initiative has this to say: "Open source is a development
method for software that harnesses the power of distributed peer review and
transparency of process. The promise of open source is better quality, higher
reliability, more flexibility, lower cost, and an end to predatory vendor
lock-in."
Recognizing that "Free Software" and "Open Source" are terms for essentially
the same thing originating from groups with slightly different goals, the FSF
says this about Free Software: " Free software is about having control over
the technology we use in our homes, schools and businesses, where computers
work for our individual and communal benefit, not for proprietary software
companies or governments who might seek to restrict and monitor us." [1]
Seeing the past history of a project before the point at which it was opened
is somewhat related, but not necessary, to the motivation cited by the OSI,
and not, as I see it, even related to the FSF motivation.
[0] [http://opensource.org/about](http://opensource.org/about)
[1] [http://www.fsf.org/about/](http://www.fsf.org/about/)
| {
"pile_set_name": "HackerNews"
} |
Japan's second highest volcano erupts - oska
http://www.abc.net.au/news/2014-09-27/several-injured-in-volcanic-eruption-in-central-japan/5773890
======
oska
Good collection of photos in this Guardian piece:
[http://www.theguardian.com/world/gallery/2014/sep/27/escape-...](http://www.theguardian.com/world/gallery/2014/sep/27/escape-
from-mount-ontake-in-pictures)
The last photo shows the erupting volcano with Mt Fuji looming in the
background.
| {
"pile_set_name": "HackerNews"
} |
Mozilla Launches Preview Of Firefox For Windows 8 Tablets - Garbage
http://techcrunch.com/2013/09/20/mozilla-launches-preview-of-firefox-for-windows-8-tablets/
======
isaacwaller
I just tried this on my Surface Pro and although performance is really lacking
and pinch to zoom does not work, I am excited about the possibility of using
other browsers than IE11. Chrome for Windows 8 has been abandoned since
release so I hope Firefox will continue to develop this UI.
------
corporalagumbo
This looks like that Firefox Junior prototype that popped up a while ago. Nice
to see thumb-centered controls spreading on tablets.
------
l0c0b0x
I sure hope its less buggy than regular Firefox on Windows 8. I mean, my lord
its bad most of the time! (depending on the update).
------
methodin
I don't know if it's a good or bad thing that WP8 apps break all historical
resemblance to other app UIs. Anyone with first-hand experience that can offer
some feedback of how these apps hold up from a usability standpoint?
~~~
Aaronontheweb
Varies a lot by form factor - my experience with Metro apps on touch devices
has been amazing. On desktops, I rarely have a reason to use them - except for
running a full-screen Kindle / Netflix app on an additional monitor.
FWIW, iOS7 and the latest Android UI actually borrow a lot from the Windows
Phone flavor of metro pretty heavily. The context switching between apps on
iOS7 is identical to what MSFT introduced in WP7.1 (Mango.)
~~~
jccalhoun
I agree. On my (non-touch screen) laptop I hardly ever use the metro apps. I
like win8 but I just go to the desktop practically every time. There just
aren't any metro apps worth using right now (I basically only use this laptop
when i'm in front of my netflix-capable tv)
~~~
Aaronontheweb
Decent Metro Apps: I recommend ReddHub - it's a pretty slick Reddit client for
the Windows Store. I use it on my Surface RT all the time.
| {
"pile_set_name": "HackerNews"
} |
Extend the life of threads with synchronization (C++11) - indatawetrust
http://stackoverflow.com/q/15252292/3986712
======
obi1kenobi
My two cents -- just use Cilk Plus: [https://www.cilkplus.org/tutorial-cilk-
plus-keywords#spawn_a...](https://www.cilkplus.org/tutorial-cilk-plus-
keywords#spawn_and_sync)
Why I like it:
\- easy to learn (3 keywords total: cilk_spawn, cilk_sync, cilk_for)
\- runtime handles thread creation, deciding appropriate number of threads
based on hardware
\- provably efficient work-stealing scheduler
\- natively supported in GCC 5, branches available for GCC 4.8/4.9 and Clang
\- comes with a race detector (guaranteed to discover determinacy/data races)
\- trivial to convert your parallel code to serial (#define spawn/sync
keywords -> empty string, and cilk_for -> for)
| {
"pile_set_name": "HackerNews"
} |
Building software to identify trends in unsolved murders - adventured
https://www.bloomberg.com/news/features/2017-02-08/serial-killers-should-fear-this-algorithm
======
e28eta
Does anyone know why MAP focuses on the clearance rate? It seems to conflate
arresting someone with "solving" the murder.
I can think of some plausible reasons: practicality (easiest to collect,
stable over time), political (if your audience is the police, basing your work
on the assumption that they arrest the right guy is probably smart),
standardization (is it?), etc.
Wikipedia is fairly light, but does link to a pair of articles on the criminal
justice conflict vs consensus models, so it seems this is a potential can of
worms.
------
dsfyu404ed
I'm really not moved by the "resources" argument all the PDs are giving.
Investigating murders is the kind of thing you do when you've run out of meth
labs to bust and black guys to beat. It's a high effort, low reward task. Of
course they'd much rather cut back there than not buy everyone tazers.
------
masscontrol
The article title "Serial Killers Should Fear This Algorithm" is naive since
psychopaths do not feel emotions like fear or empathy, or at least not
spontaneously.[1]
I've tried to test a psychopath in the wild using a word association
psychoanalysis method[2], but they are hard to find. Hospitals would not
divulge names (no surprise there) and many psychopaths are senior corporate
professionals who run successful companies.[3]
[1] [https://www.psychologytoday.com/blog/the-empathic-
brain/2013...](https://www.psychologytoday.com/blog/the-empathic-
brain/201307/inside-the-mind-psychopath-empathic-not-always)
[2] [https://criticalstimulus.com/](https://criticalstimulus.com/)
[3] [http://www.telegraph.co.uk/news/2016/09/13/1-in-5-ceos-
are-p...](http://www.telegraph.co.uk/news/2016/09/13/1-in-5-ceos-are-
psychopaths-australian-study-finds/)
~~~
wmil
A serial killer who strangles women is probably a "Lust Killer" and not a
psychopath.
[https://en.wikipedia.org/wiki/Lust_murder](https://en.wikipedia.org/wiki/Lust_murder)
[https://en.wikipedia.org/wiki/Lust_serial_killers](https://en.wikipedia.org/wiki/Lust_serial_killers)
~~~
abiox
> a "Lust Killer" and not a psychopath
are these exclusive notions?
------
eptcyka
And regular readers should fear this headline.
~~~
dang
We've replaced it with a phrase from the subtitle.
~~~
riskneural
I feel like you build a model which you implement in software. (which runs on
hardware)
------
ffef
Keyword: Before the fact
------
Shivetya
cynical me thinks it simply isn't profitable to them to solve murder cases
unless public outcry is very high and more profitable to beat on the fear of
drugs and perform seizures.
post 2010 drop could unfortunately be attributed to a hostile media and
Presidency towards the police because of some overly politicized cases
~~~
mcphage
Definitely there's been a reduction in trust between police departments &
citizens, but I'm not sure I agree with you whose _fault_ it is.
~~~
ep103
The drug war. #1 culprit.
| {
"pile_set_name": "HackerNews"
} |
Why Google allows target.com to spam search results - madars
http://www.goodroi.com/why-google-allows-target-com-to-spam-results/
======
codexon
This is a result of Google's reliance on domain authority over relevance and
pagerank now.
[http://www.seomoz.org/blog/google-spam-illuminates-the-
algos...](http://www.seomoz.org/blog/google-spam-illuminates-the-algos-
reliance-on-domain-authority)
[http://www.seomoz.org/blog/how-googles-rankings-algorithm-
ha...](http://www.seomoz.org/blog/how-googles-rankings-algorithm-has-changed-
over-time-)
------
Evgeny
A guy posted a "fictional" link to a search for "jon payne is so hot" on
target website in the comments:
[http://www.target.com/gp/search/188-1977530-4602238?field-
ke...](http://www.target.com/gp/search/188-1977530-4602238?field-
keywords=jon+payne+is+so+hot&url=index%3Dtarget%26search-alias%3Dtgt-
index&ref=sr_bx_1_1&x=0&y=0)
Soon enough, the search for "jon payne is so hot" on google returns target as
top result.
[http://www.google.com.au/search?q=jon+payne+is+so+hot&ie...](http://www.google.com.au/search?q=jon+payne+is+so+hot&ie=utf-8&oe=utf-8&aq=t&rls=com.ubuntu:en-
US:official&client=firefox-a)
~~~
timdorr
Also humorous, on these search results:
[http://www.google.com/search?q=site:target.com+We+could+not+...](http://www.google.com/search?q=site:target.com+We+could+not+find+matches+for)
the top result is:
"Anal Massage for Lovers Vol 2 : Target Search Results"
:|
------
robryan
I would go as far to say any results page which is the result of an in site
search should be removed, rarely if ever have I found any value from these
pages through google.
~~~
andrewljohnson
I disagree with this as an absolute.
Google will often show cooks.com search results for a search for "X X recipe,"
and these are typically the correct result, showing a dozen similar recipes
for the dish I'm looking to cook.
------
Maciek416
Are these pages being served up as 404s ? If not, that sucks. If yes, why
would Google diligently index a 404 and strongly rank it?
~~~
madars
Unfortunately they are served as 200 OKs (see <http://tinyurl.com/yzca7ec>)
~~~
pyre
I'm not really 'up' on involved rules with respect to web programming /
interfacing with Apache, but is it standard practice to return a 404 when your
search finds no hits? Technically it's not a 'page not found.'
~~~
ars
It would require extra programming, so is not done unless you think of it/get
a special request for it.
Should you use a 404? I could see arguments both ways. A "no results" result,
is still a result. So it's not a 404.
I would do a 404 if you try to link to a product that does not exist, but not
for a zero results found page.
BTW madars don't use url shorteners here - even for really long ones.
------
wglb
Interesting: this story is apparently of enough concern that when i serch for
"Exercise Bike Clearance" I get mostly articles talking about Target spamming
Google.
------
vaksel
how hard is it really, for Google to add
if "we are sorry we couldn't find" + searchquery then nofreetrafficforyou
I mean there are only a dozen or so ways for people say "we are sorry we
tricked you into coming to our site with fake content", surely a company the
size of Google can do a fix for this. Would eliminate overnight 90% of all
those crappy fake search results
~~~
robk
But that's not really feasible for 100+ languages, not to mention character
sets, etc. Editorial doesn't really scale for Google at all.
For many of the smaller languages (i.e., outside the top 20 or so) Google only
employs at most one native speaker who's tasked to work on search quality.
~~~
vaksel
but they only need to cover 1 language, English. EVERY SINGLE "fake" page I've
seen was in English.
------
andreyf
_Big brands have more links and more trustworthy websites referring to them_
Here's something I don't get: where the hell are there links to target.com? I
sure have never seen one...
~~~
almost
[http://www.google.com/search?q=link%3Ahttp%3A%2F%2Fwww.targe...](http://www.google.com/search?q=link%3Ahttp%3A%2F%2Fwww.target.com)
~~~
redorb
[https://siteexplorer.search.yahoo.com/search?p=http://www.ta...](https://siteexplorer.search.yahoo.com/search?p=http://www.target.com&fr=sfp&bwm=i)
is a better source, it shows 3.1mm incoming links...
[https://siteexplorer.search.yahoo.com/search?p=http://www.ta...](https://siteexplorer.search.yahoo.com/search?p=http://www.target.com&bwm=i&bwmo=d&bwmf=u)
Shows that only 267k are from outside sources. Target is getting the credit of
internal link structure from all their other pages. </educated guess>
~~~
byrneseyeview
If that were true, this would be the best-ranked site in the universe:
<http://ianab.com/trillion/1.html>
~~~
redorb
Except that those trillion pages have little incoming links ~ so they have no
"juice" or "pageRank" to pass. Target has 267k incoming links then
redistributes that via internal links / a while ago people started "link
sculpting" using 'no-follow' in the link <ahref> to take all the homepage link
juice and pass it to what they perceived as their better converting pages..
but google has since come out and said that wasn't a good thing to do...
~~~
byrneseyeview
Right. Having extra pages, versus extra content, is not specifically
beneficial. If that were the case, other sites would fill themselves with
specious stuff like empty search results pages.
------
almost
"Imagine if each page generates just one visitor each day"
Yes, just imagine that! While we're at it we could even imagine that each page
generates 6 billion visitors a day. How bad would that be???
Looks like a flaw in Target's site. Not news. Not interesting. Not anything
| {
"pile_set_name": "HackerNews"
} |
Meeting Technical Cofounders in SF? - absamer
Hey guys - I will be in San Francisco between Aug 22 - Aug 24 and was wondering if I could meet technical cofounders who are interested in building the following tourism mobile app:<p>What is Tropoo:
https://www.youtube.com/watch?v=I4SJHPOrk_g<p>How it works:
https://www.youtube.com/watch?v=Aawxqetbyss<p>Drop me an email at: samer@tropoo.com<p>Cheers!!
======
absamer
test
| {
"pile_set_name": "HackerNews"
} |
Uber Data and Leaked Docs Provide a Look at How Much Uber Drivers Make - impostervt
https://www.buzzfeed.com/carolineodonovan/internal-uber-driver-pay-numbers?utm_term=.ncJOK7YoA7#.tsrdRXW7rX
======
danso
> _Rather than relying on Uber 's figures, BuzzFeed News conducted an
> independent analysis of the raw trip data and driver data. Uber subsequently
> recalculated BuzzFeed’s estimates using a broader and more detailed set of
> internal data — which it declined to share directly with BuzzFeed News._
Was it the calculation or the original data that they declined to share? If
the former, I guess that's a sign that Buzzfeed isn't far off?
| {
"pile_set_name": "HackerNews"
} |
Ed Mastery (Is This a April Fools Joke) - joelinuxyx
https://www.tiltedwindmillpress.com/?product=ed
======
cperciva
It's a real book.
| {
"pile_set_name": "HackerNews"
} |
Cornell professor driven to convey beauty of mathematics - tokenadult
http://www.theithacajournal.com/article/20130114/NEWS02/301140061/Cornell-professor-driven-convey-beauty-mathematics
======
pcurve
Old video, but in case anyone wants to see metronomes syncing in action.
<https://www.youtube.com/watch?v=yysnkY4WHyM>
~~~
DanBC
I also like the video on this page:
([http://sciencedemonstrations.fas.harvard.edu/icb/icb.do?keyw...](http://sciencedemonstrations.fas.harvard.edu/icb/icb.do?keyword=k16940&pageid=icb.page80863&pageContentId=icb.pagecontent341734&state=maximize&view=view.do&viewParam_name=indepth.html#a_icb_pagecontent341734))
(<http://youtu.be/yVkdfJ9PkRQ>)
------
chris_wot
This is very interesting. I've always struggled with Mathematics. Recently I
got a Dover book on Trigonometry, and I finally understood what radians are!
Now I know there are folks here who intuitively grasp mathematics - I see and
sometimes envy their grasp of the material - but I'm finding that I'm enjoying
understanding the most basic of mathematical concepts. There's something
incredibly satisfying about it all.
------
mathattack
Given my screen name, one would suspect that I like this article. :-)
Math should be a joy. I wish I had heard of this book sooner. I certainly
added it to my wish list in Amazon. [http://www.amazon.com/The-Joy-Guided-
Tour-Infinity/dp/054751...](http://www.amazon.com/The-Joy-Guided-Tour-
Infinity/dp/0547517653)
| {
"pile_set_name": "HackerNews"
} |
The Sound of Pixels - myth_drannon
http://sound-of-pixels.csail.mit.edu/
======
a-dub
Interesting. I wonder how well a logistic regression that spits out masks
would perform in the source separation task.
Also a bit surprising to see that they had to STFT the audio before feeding it
into a convnet. I thought half the point of convnets was that they figure out
how to do spectral domain representations on their own...
~~~
black_puppydog
in theory yes, but in practice, giving the network the full information _in
the right format_ is crucial to have it train well and quickly.
~~~
a-dub
isn't that supposed to be the magic of convnets though? they _figure out_ the
right format. instead of doing feature engineering, like stfts and mel
warping, you do stuff like build convolution layers into an ann and let it
sort it out?
------
keyle
Cool stuff. Any real world usage/benefits for this? I can't think of any.
~~~
drhodes
matching faces with voices in a surveillance situation, which person is
talking?
~~~
vernie
That's actually this paper: [https://ai.googleblog.com/2018/04/looking-to-
listen-audio-vi...](https://ai.googleblog.com/2018/04/looking-to-listen-audio-
visual-speech.html)
~~~
black_puppydog
that's actually a whole subfield, not "this paper".
------
rflrob
I haven’t tried my hand at any machine learning, but I’m impressed that it
could work with only 60 hours of training data. Perhaps the input clips were
fairly short, which would increase the total number of videos.
------
app4soft
It remind me such apps like _PhonoPaper_ [0], _Nature - Oscillator_ [1] and
_PixiVisor_ [2]
[0] [http://warmplace.ru/soft/phonopaper](http://warmplace.ru/soft/phonopaper)
[1] [http://warmplace.ru/soft/nosc](http://warmplace.ru/soft/nosc)
[2] [http://warmplace.ru/soft/pixivisor/](http://warmplace.ru/soft/pixivisor/)
------
funkdified
This is going to be huge for the hard of hearing.
~~~
pjgrad
Unlike reading, I don't think audio can convey the same meaning in a different
sensory format. At best, they perceive it but in an alien way to most people.
It's like describing a painting in musical notes.
~~~
pjgrad
And the "some" to that "most" are those with synesthesia
------
ggm
Does anyone remember Gerry Anderson? he designed relays attached to puppets,
which made the jaws clack in time to the sound-track being played, while they
filmed the puppets for _Thunderbirds are go_ in the 1960s. Look at me ma! my
puppet is speaking!
Thus, it only took us 50-odd years to write the reverse-compiler..
------
xtagon
I wonder if this can segregate vocals from instrumentals in a mix? That would
be great for mashups.
~~~
bscphil
Incidentally, due to the way a lot of stereo tracks are mixed, it's often
possible to mostly remove the vocal track from a song. I'm more curious if
this algorithm could perform the reverse task - playing the vocals only. My
intuition is that the results would be poor because of the wide human vocal
range and the fact that words need to be discernible, not just notes. But I
would love to be proven wrong here.
~~~
StavrosK
If you can remove the vocals from a piece, you can then subtract that from the
original to get just the vocals.
~~~
nawgszy
Well that's not quite true. The point is, I believe, that vocals are generally
put right in the center of the sound-stage, so they play equally in the left
and right channels. Thus right - left is most of the rest of the song, but the
vocals cancelled each other out.
However, the right - left mix isn't exactly the song minus the vocals, it's an
odd off-version, so subtracting that from the original song will leave mostly
the vocals but with artifacts from the difference between the song truly
without vocals and the right - left mix's interpretation thereof
~~~
StavrosK
Yes, certainly. My point is that if you have "mostly no vocals" you can
subtract that from the left + right mix to get "mostly the vocals". It won't
be exactly right, sure.
~~~
nawgszy
Fair enough!
------
hrayr
Interesting, I was wondering what to do with my audiblepixel.com domain.
| {
"pile_set_name": "HackerNews"
} |
Dragscroll – a tiny JS library which enables scrolling via mouse drag - xpostman
https://github.com/asvd/dragscroll
======
atesti
Even before having a mouse with wheel I used to scroll stuff with by dragging:
I just selected text and when the selection reached the border, it started to
scroll. I bet I'm not the only one. Anybody considering disabling selection or
showing social media tools after selecting text should consider such weird
behaviour.
Nowadays I use my Thinkpad without Synaptics or trackpoint drivers and the
middle button works perfectly: Either using it open links in new tabs, or
pressing it to start scroll mode. Now the mouse pointer changes and moving it
scrolls. Unfortunately some software breaks this, probably WPF
~~~
joeframbach
Relevant xkcd: [https://xkcd.com/1172/](https://xkcd.com/1172/)
------
ams6110
Tangentially, what's a good JS library to implement drag/drop on mobile?
I'm thinking of one site in particular that implements prioritizing choices by
drag/dropping them into order of preference. But when you try to use the site
on a mobile browser, it just scrolls the page when you try to drag an item.
I'd like to suggest to them how to fix it, rather than just complain.
~~~
jewel
If they are using jquery UI, then there is a small fix addon called "touch
punch" which repairs it.
A similar approach should work for other libraries. You need to handle the
"touch" events in addition to "mousedown" and "mouseup".
------
WhitneyLand
It's a nice idea, but could it be made to be mobile friendly? For example when
touch scrolling on a device the text scrolls in a choppy fashion rather than
smooth with momentum.
I understand this is for desktop, but it would be nice if it could not get in
the way of what div/overflow gives us for free.
~~~
xpostman
Sorry, I think I don't clearly get what you mean. Tablets normally scroll
smoothly pixel-wise as long as you move the finger. In fact, dragscroll
implements the similar behaviour for desktops, because I consider such
behaviour as more reasonable in many cases (comparing to selecting the content
of the area, I mean).
~~~
WhitneyLand
You are right about how tablets are supposed to work.
The problem is that in your examples this behavior no longer functions as
expected on tablets.
The example should work well for both desktop and tablet. Your current
implementation changes the normal behavior on tablets.
~~~
xpostman
There probaby an bug in dragscroll then. It is not supposed to break the
behaviour on tablets, will test it..
------
unicornporn
The problem with solutions like these: without a notice, how will the user
ever know that they can drag scroll on my site? Perhaps for a web app with a
limited user base that can be educated...
~~~
mobiuscog
The cursor changes. Admittedly, if people aren't capable of noticing that,
they may be a lost cause.
~~~
contradictioned
True for images, but not for the text (chromium+linux). And I get annoyed when
I cant select text.
~~~
xpostman
This is defined by the developer actually. And besides there is no problem for
a user if he does not know that he can scroll with dragging.
------
1and2equals0
I also like the idea. Would be cool if it could work naturally with pointer
lock - annoying to have to reset pointer position manually :)
~~~
xpostman
then you will have to manually reset the mouse on the table :-D
------
glxybstr
sort of interesting. i expected it to have velocity/inertia, but I think that
would make it much more than ~900 bytes
------
nfoz
Why shouldn't this be up to the mouse driver? I used to just use middle-click
for this.
~~~
adrusi
Because sometimes there are scrollable areas on the page that you want to pan,
not scroll, but there's no panning built into HTML. Yes, mouse drivers should
make it possible to pan any scrollable area, but most don't, and websites have
to be usable with shitty drivers.
------
supercoder
I've been using ftscroller which is great for emulating UIScrollView
------
whoisthemachine
Nifty
| {
"pile_set_name": "HackerNews"
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Tracking Cirrus: Is This the Silk Road 2.0 Mole? - r721
http://motherboard.vice.com/read/tracking-cirrus-is-this-the-silk-road-20-mole
======
pstuart
Why was Homeland Security involved in this? One of their charters[1] is to
"Safeguard and Secure Cyberspace", which they state is:
* analyze and reduces cyber threats and vulnerabilities;
* distribute threat warnings; and
* coordinate the response to cyber incidents to ensure that our computers, networks, and cyber systems remain safe.
None of that looks like "stop people from buying drugs".
[1] [http://www.dhs.gov/safeguard-and-secure-
cyberspace](http://www.dhs.gov/safeguard-and-secure-cyberspace)
~~~
dmix
A friend of mine did contract SEO work for a company selling synthetic drug
similar to marijuana (before the DEA made it illegal). But they kept selling
it after it was made illegal and long after his online-marketing contract
ended. But he was contacted by the DHS, specially ICE with questions about his
prior involvement. Nothing came of it but this story shows that they do
investigate drug matters.
[https://en.wikipedia.org/wiki/U.S._Immigration_and_Customs_E...](https://en.wikipedia.org/wiki/U.S._Immigration_and_Customs_Enforcement)
> ICE is the second largest criminal investigative agency in the U.S.
> government, following the FBI.
> HSI Special Agents investigate a range of issues that threaten the national
> security of the United States such as human rights violations, human
> smuggling, art theft, human trafficking, drug smuggling, arms trafficking,
> transnational gang investigations, financial crimes including money
> laundering and bulk cash smuggling, trade-based money laundering (including
> trade finance and Kimberley Process investigations), computer crimes,
> including the production and transportation of child pornography via the
> Internet, import/export enforcement issues, trafficking of counterfeit
> pharmaceuticals and other merchandise, and international Cultural Property
> and Antiquities crimes.
ICE basically investigates any sophisticated crimes and their mandate
definitely covers drugs, especially drugs that are imported from overseas.
This is part of the reason why 90% of the time the patriot act has been
invoked it has been for drug investigations and not terrorism related crimes.
[https://www.techdirt.com/articles/20110908/02534215846/wasnt...](https://www.techdirt.com/articles/20110908/02534215846/wasnt-
patriot-act-supposed-to-be-about-stopping-terrorism.shtml)
| {
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How one SV engineer benefitted from the tacit acceptance of entrenched sexism - gregleffler
https://www.linkedin.com/pulse/how-one-silicon-valley-engineer-benefitted-from-tacit-faye-keegan
======
a_puppy
I agree Haseeb's comment was sexist, and I'm glad that Keegan called him out
on it.
But I think the punishment she's asking for is too strong. She seems to be
implying that he shouldn't be allowed to have a successful career after making
that comment, which I think is a massively disproportionate punishment.
Also, this isn't "tacit acceptance of entrenched sexism". There was nothing
"tacit" about her calling him out, and her response and Ruggeri's response
were not "acceptance". In fact, if every sexist comment got called out like
this, people would stop making sexist comments. The problem is when people
make sexist comments and don't get called out on it, or when the incident is
brought to higher authorities and the authorities defend the sexist comments--
neither of which happened in this case.
------
PaulHoule
Also it is not so clear that this person is really a winner in the long term.
My experience is that if you negotiate for a high salary, unless you really
perform like a super-superstar, you will be the last to get a raise and the
first to go if anything goes wrong.
------
andrewl
I'd only heard the name App Academy before this article. I did a bit of
reading on it. It's an intensive twelve-week program, and it looks like
applicants have to pass heavy screening for aptitude. I can well believe that
properly screened and highly-motivated people can learn a huge amount in
twelve weeks. And Qureshi seems highly intelligent. He's described in the
Business Insider article as a former professional poker player with an English
degree. His blog says he was a millionaire poker player by the age of 19. So
I'm guessing he's pretty powerful analytically.
But still. If a company is putting a _quarter of a million dollars_ on the
table, I would think they'd be able to find somebody as smart as Qureshi who
also had a computer science or computer engineering or mathematics background
and _years_ of coding experience.
I don't work in the tech world this article is describing, so I don't know.
But it seems odd to me.
------
11thEarlOfMar
If you're looking for a job in any field, and any type of _ism_ is a concern
for you, you have three options:
1\. Ignore the _ism_ and be yourself.
2\. Call out bad behavior and campaign against the _ism_.
3\. Adopt the behaviors of the _ism_ and try to minimize the differences.
Individual personalities and circumstances likely dictate which of these you
choose, but everyone who is subjected to an _ism_ and looks for work chooses,
and none of those options are the better choice for everyone.
If you are in a hiring role, keep in mind that you put your company's
reputation at risk and can invite legal action if you judge candidates by any
measure associated with _isms_. Be thoughtful and prudent out there.
~~~
fullshark
you forgot
4\. Whine about it in a blogpost to try to create an internet outrage army
------
xiphias
I think Haseeb wants to offer genuine help to women. If this woman doesn't
want to take the advice, it's OK. Just ignore it. But please don't write a
blog post about how he communicates instead of what's important: the message.
For Engineers communication style was always secondary, and although it's
getting more important, it should be staying secondary to the content and the
real meaning behind the message.
------
YeGoblynQueenne
>> “Shake hands like a man, especially if you’re a woman.”
Er, that's a load of bollocks.
------
skmurphy
[Haseeb left a long comment (sorry it does not seem to be possible to link
directly to it) Here is an edited version (I have removed sentences but
believe I have preserved some key points) To be clear I don't know Haseeb and
have never met him, but I thought his comments helped to put aspects of the
original post in context. I don't know that they are true but they are posted
under his LinkedIn ID.]
Hey Faye, Someone linked me to your article that you posted on LinkedIn Pulse
about me. First off, your article is completely fair. Though this took place
about 6 months ago, it's something that weighed heavily on me when it
happened. I never reached out to you to discuss it personally, though I don't
think that was my fault. Let me explain.
[...]
That presentation was the first time that I realized I'd said something
flagrantly sexist. I'd written the slides about 30 minutes before the
presentation and never read them aloud to anyone. I immediately felt ashamed
when I read them aloud, because I knew it was a sexist line that I should've
immediately deleted and re-written. So when you pointed out that it was
sexist, I hoped that the best way I could concede the point would be to
acknowledge you were correct and fix it in front of everyone. After the
presentation, I was pretty ashamed. I wasn't really sure what to do about it,
because I thought two things: one, I made a point to fix the presentation, so
was that enough? Should I have done something else? Second, should I apologize
to you personally? But would that be weird? You weren't the only woman in the
crowd; should I go apologize to every woman? Would that be even weirder? I
wasn't sure what to do, so I decided I'd wait for lecture feedback.
[...]
When Ned took me aside a few days later and told me about receiving an
anonymous e-mail about it, it made me feel even worse. He didn't tell me which
female student it was, but his conversation had confirmed both that someone
was strongly affected by this incident, and that I hadn't done enough to
address it. Ned did not tell me who you were. I told Ned to let whoever had
sent that message know that I'd be happy to apologize to them personally if
that was something they'd be open to. I also would've hoped to ask what I
could do best to address it to the rest of the class. I never heard back. So
the personalized apology you said never came, was because Ned rightly did not
reveal who you were unless you wanted to communicate with me directly. Though
I didn't hear anything more about it, that incident affected me very strongly,
and made me much more vigilant to be thoughtful about my language and what
biases I bring to my teaching at App Academy. I decided that if I were ever to
make a mistake like that again, the best thing to do would be to call it out
and openly address it as a mistake after the lecture, and apologize explicitly
to the students.
[...]
There's a lot in your post I don't agree with (no surprise there). I also
don't think Ned was in the wrong in any way here, and I think it's unfair for
you to paint him as having been complicit in anything untoward. But mostly I
want to say, I'm sorry. I'm sorry both that this happened and made you feel
unwelcome at App Academy, and also that I wasn't able to make it right after
it did. Sincerely, Haseeb
------
JoeAltmaier
tl;dr: too-blunt reality check offends some
~~~
sp332
Trying to make your interviewer believe you are like them is fine. Accepting
that most interviewers are men, as immutable fact, is not. Telling women they
need to be less womanly to get a job is not.
~~~
JoeAltmaier
Even if it works? I mean sure, in a perfect world. But the advice was to job-
seekers in the current world. Thus, 'reality check'.
We can spell out the right and wrong way things should be run all day long.
Not useful unless you're in a position to change them. For the rest of us,
good advice is to adapt.
~~~
sp332
Well I also left out the most obvious thing, which is describing a confident
handshake as "shaking hands like a man." That really is blatantly sexist.
~~~
JoeAltmaier
Did you understand what was meant? Then the phrase was effective. Are there
statistical correlations between handshakes and gender? Blunt reality check
again.
~~~
sp332
What it means is that women should be encouraged to give confident handshakes,
not that women should renounce their femininity and try to be more manly.
| {
"pile_set_name": "HackerNews"
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Google BigQuery Service: Big data analytics at Google speed - Anon84
http://googleappengine.blogspot.com/2011/11/google-bigquery-service-big-data.html
======
epaulson
It has joins now, but Google says this: "Joins have size restrictions due to
implementation details. Essentially it means that the data on both sides of
the JOIN clause cannot be large. For example, select count( _) FROM big_table
JOIN another_big_table will fail, but select count(_ ) FROM big_table JOIN
small_table will succeed. Because this size restriction depends on many
complex variables, the best way to handle joins is to try your join, and if it
returns a "Table too large for JOIN query" error, limit the data handled by
join clauses by specifying fewer fields or rows."
If someone is in the pilot, I'd love to know some different table/result set
cardinalities where you hit the "too large for join" limit, as well as what
your data and join conditions look like.
~~~
ameyamk
I was taken aback by support for 'JOIN' but this comment makes me less excited
about the service.
~~~
rxin
Support for joining two very large tables is nice, but isn't really a super
big deal. In a typical warehouse star schema, you have a very very large fact
table, and a number of dimension tables. The dimension tables tend to be
small.
~~~
jukaykwek
That's the general idea. At least for the current release we prioritized a
more common case ilke what rxin describes.
That said, if you have a "big join" use case, please sign up for the wait list
(<http://goo.gl/7zpSn>) and specifically list your use case. We'd like to talk
to you about that. :)
| {
"pile_set_name": "HackerNews"
} |
Bootstrap 3 - bauerpl
http://getbootstrap.com
======
saurabhnanda
Is it just me or do flat styles actually have worse usability? There's
absolutely no visual cue for what's clickable and what's not.
~~~
wiremine
Yeah, I agree. A good case-in-point is the new button groups.
Here is 2.3.2:
[http://getbootstrap.com/2.3.2/components.html#buttonGroups](http://getbootstrap.com/2.3.2/components.html#buttonGroups)
And here are groups in 3: [http://getbootstrap.com/components/#btn-
groups](http://getbootstrap.com/components/#btn-groups)
There _is_ a rollover state, but it doesn't really convey it is a button
anymore.
~~~
zeckalpha
And rollover doesn't work if you are mobile-first.
------
yesimahuman
If anyone's interested, I wrote up a little guide on how to prepare yourself
for B3 - [http://blog.jetstrap.com/2013/07/bootstrap-3-how-to-
prepare-...](http://blog.jetstrap.com/2013/07/bootstrap-3-how-to-prepare-
yourself/)
------
pixelmonkey
The actual reason that all the styles are "flat" right now? One of the main
project authors removed them temporarily while he focuses on fixing other
issues in the current pull request for Bootstrap 3.
mdo commented: Gradients and other embellishments have
temporarily been removed while I focus on other things.
It has nothing to do with skeuomorphism or anything
like that.
Stop reading the tea leaves, people. Source:
[https://github.com/twbs/bootstrap/pull/6342#issuecomment-123...](https://github.com/twbs/bootstrap/pull/6342#issuecomment-12332378)
~~~
WickyNilliams
It would be pretty neat if all the "gloss" was an additional, optional
"module" that you could add in at your discretion.
People who want something they can work with straight away can then add that
in and get their gradients, drop shadows etc. People who want something more
basic that they can augment with their own styles can then choose to not
include this "module", and save themselves having to jump through hoops to
undo the default styles (which is a pain, as anyone who has had to do this
knows)
------
taspeotis
> Bootstrap 3
It's a release candidate. The first of at least two.
If you want discussion, check out
[https://news.ycombinator.com/item?id=6112141](https://news.ycombinator.com/item?id=6112141)
(disclaimer: my submission).
@mdo jumped in for a bit of commentary, too.
------
girvo
Man, I feel weird. I used BS2 temporarily, but then stripped it out for a
straight reset and grid system. Old habits die hard, I guess, and what I Want
from a UI doesn't always match Bootstraps ideas... I'll give this another shot
for my startup prototype, but I have a feeling the same will happen.
Is anyone else like that, or am I now old-school at the ripe age of 22?
~~~
moogleii
Maybe Foundation would suit you better. I heard it's a bit more lightweight
than BS.
~~~
nahname
I checked it out for that reason. Then I found a number of social images and
began wondering why a lightweight CSS framework needed images for facebook,
twitter, etc...
~~~
jaredmcateer
You mean the Social Icons in the _Add-ons_ section? You don't need to include
those, in fact, I believe they are opt-in, not opt-out.
~~~
nahname
Just checked and you are correct.
~~~
thatswrong0
If you want something lightweight, I wouldn't go for Foundation either. Even
after stripping out the unnecessary stuff, I found it overly obnoxious to
style.
I ended up with the Skeleton framework after struggling with both Bootstrap
and Foundation for a few days. It was a much better decision. I've also been
eyeing Bourbon Neat lately as well.
------
message
Dude,
[https://www.hnsearch.com/search#request/all&q=Bootstrap+3](https://www.hnsearch.com/search#request/all&q=Bootstrap+3)
~~~
scrrr
So what. Now all the people that haven't seen it will notice. heh
~~~
thejosh
It's still on the second page of HN, was on the frontpage for a while.
~~~
GoNB
I guess it goes to show front end design is one of the most controversial
topics on HN. On GitHub, Bootstrap has maintained an almost permanent position
in the daily top ranked repos.
------
xtrumanx
I don't think I get the new grid system.
<div class="col-12 col-sm-8 col-lg-8">.col-12 .col-lg-8</div>
What's going on here? If I were to guess, I'm assuming it's going to be 12
columns if its a mobile, 8 if a tablet or a desktop.
In what situation would that be useful? It looks like you'd end up with some
pretty complicated mark-up quickly like that.
~~~
timdorr
In order to reduce complexity like this, you should avoid using Bootstrap
classes in your HTML directly.
Instead, use semantic class names for your app and use the new &:extend()
directive in LESS 1.4 or @extend in SASS (if you're using bootstrap-sass).
You'll end up with much more readable HTML and CSS, and will insulate yourself
from future changes in Bootstrap.
I do stuff like this in SASS
%flash {
@extend .container;
@extend .alert;
margin: 15px auto;
border-radius: 0;
.close { top: 0; }
}
.flash-success {
@extend %flash;
@extend .alert-success;
.close {
color: $successText;
opacity: 1;
}
}
.flash-error {
@extend %flash;
@extend .alert-error;
.close {
color: $errorText;
opacity: 1;
}
}
~~~
WickyNilliams
I'll politely (and completely) disagree with this. I much prefer the HTML
convey semantics (to the dev, not to the user) than having magic happening
behind the scenes with CSS.
By having the classes in the HTML, you know at a glance what is going to
happen. Whereas using extend there's an extra layer of indirection, you end up
having to look at the HTML, see there's a class called something like
"sidebar". Then you have to look at the SASS, find the sidebar class to see
there's an extend directive, then and work out what's going on in there.
That's an extra step i'd rather avoid.
People usually follow this approach to get "clean" or "semantic" markup, but
there's some falsehoods in that thinking. The "markup looks ugly", or is "non-
semantic" are misguided: no user agents infer semantics from classes, and the
ugliness you describe is purely aesthetic, _the real beauty is in the
semantics the developer can infer from having clear and obvious classes in the
HTML_. Another classic argument is it makes the markup bloated. This may be
true on the surface, but when you factor in GZIP, it is completely negated as
more repetition == better compression.
A great read on the topic is Nicholas Gallagher's article "About HTML
semantics and front-end architecture"[1]. Reading that article for the first
time was one of those moments of clarity, where your previous perceptions are
completely shattered. Hopefully you guys will feel the same :)
[1][http://nicolasgallagher.com/about-html-semantics-front-
end-a...](http://nicolasgallagher.com/about-html-semantics-front-end-
architecture/)
~~~
timdorr
I'm not sure I follow. You're basically arguing for including style attributes
throughout your HTML. CSS classes are always a layer of indirection,
regardless of whether they are semantic or functional. As such, you shouldn't
be forcing style and layout directives into the structure of the document.
The main benefit of what I'm describing isn't actually semantics. It's
allowing CSS to do what it does best: cascade.
Say I've got an application where I've got several pages with unique layouts
and the designer has come up with a new form style that has all the labels
inline instead of on top of each input and has a new dynamic tour system that
needs some area on the right of each form.
If you were using Bootstrap classes directly, you'd have to go to _all_ of
your forms and add .form-inline and change the column size classes. You
wouldn't want to redefine what those classes are because that may have effects
on other areas of the application. This may also break some of your
Javascript, as it was dependent on those class names.
If you were using semantically-named classes, you'd simply change the width
and add @extend .form-inline to your main form placeholder (which is in turn
@extend'ed by any specific form class). Your HTML would stay the same, meaning
any Javascript dependent on those classes wouldn't break.
~~~
WickyNilliams
No I'm not arguing for style attributes, that's a maintenance nightmare
waiting to happen (with very little waiting needed!). They are a layer of
indirection indeed, but which of these do you think conveys more
information/semantics to the developer (these aren't bootstrap specific
classes, just illustrative):
<div class="sidebar"> <!-- content --> </div>
<!-- or -->
<div class="sidebar grid-one-whole grid-one-half-medium grid-one-third-large">
<!-- content --> </div>
The second one is _way_ more verbose, but at a glance you know exactly what is
happening (assuming my class names are obvious enough). The classes convey
information that an amalgamated class you get from @extend simply cannot.
First let me say that a lot of what I'm talking about is optimal for building
large-scale web sites with lots of page variants. Your mileage may vary for
smaller sites, the principles can still be applied, but you might not need
adhere to them as strictly.
There's been a movement in recent years, Object Oriented CSS (OOCSS). This
ethos urges the developer to write CSS as they would other code, using the
hard lessons that have been learnt in other language. We should be thinking in
abstractions, utilising the single responsibility principle, favouring
composition over inheritance, loose coupling, and self-documenting code. I'll
go through these one at a time, because the benefits of each flow throughout
one another.
Abstractions - using a single class like "sidebar" to contain all your styling
for the sidebar is not thinking in abstractions. The sidebar may need specific
styling (say a different BG colour) but it also has a lot in common with other
parts of the page. For instance, it's nothing more than a grid column, so why
bundle all styles into one class instead of using the grid abstraction to
"decorate" the sidebar with this? This is equivalent to breaking a system into
reusable classes. See Nicole Sullivan's article on the Media Object [1] and
Harry Roberts on the open/closed principle in CSS [2]
Single-responsibility principle - Do one thing and do it well. A class should
have a single-responsibility so that it can be composed into larger "blocks"
of styling. A class that does everything is monolithic and difficult to work
with as soon as a design needs to change. Overly broad selectors in CSS can
also break the single responsibility principle - suddenly your styling is
relying on the coincidental placement of elements inside one another. Harry
Roberts cover this [3]
Loose-coupling: Can parts of your code base change without affecting others?
By @extending grid classes you're tightly coupling yourself to the
implementation details of the grid system. Now you can of course override
styles in your sidebar class, but overriding styles from previous classes is a
code smell. If you're "undoing" what another class has done, you've applied a
style too early. You suggest changing the CSS and leaving the HTML the same
when a change is required. I always prefer changing the HTML because it has a
far more limited scope for far reaching changes. If you change one segment of
HTML you know it's not going to affect other parts of the site beyond itself
(and possibly it's children), but if you change some tightly-coupled CSS its
effects could ripple throughout the whole site. The previously mentioned
article on the open/closed principle [2] touches on tight coupling in classes.
Favour composition over inheritance - In OO languages we've learnt that we
should favour composition of granular, single-purpose classes over deep
inheritance hierarchies. Why? Inheritance is a fundamental tenet of OO, just
as the cascade is in CSS, but we still frequently eschew it. The reason for
this is because we can compose infinitely more flexible pieces of
functionality from granular building blocks than we can from inheriting traits
from "super classes". And now that we're thinking in abstractions (as outlined
above) using the single-responsibility principle, we can put multiple classes
on an HTML element to compose them as you wish into large blocks. Harry
Roberts (CSS Wizardry) covers this nicely [4] and also when talking about grid
systems [5]
Self-documenting code - From the HTML I ideally want to know exactly where
each bit of style is coming from. With one monolithic class all I know is that
it's a sidebar, which doesn't really tell me much that I can't work out
visually. Multiple classes tell me exactly how it will behave at a glance.
This means your classes should be as descriptive as possible. Classes should
not describe the content of the markup they are applied to (sidebar is
definitely content-centric) but rather their intent. And small, abstract,
single-responsibility classes convey more information than a monolith can, and
they ease understanding of the system. Someone familiar with bootstrap could
quickly get to grips a site using the plain bootstrap classes, whereas
@extending all over the place necessitates digging into the CSS to gain an
understanding of the system. This is covered in great depth in the original
article I linked to.
Finally, you should never use as a JS hook a class whose purpose is visual
styling, then the whole mess you outlined is avoidable. Either use data-*
attributes (as most bootstrap widgets do) or a class which conveys intent and
a single responsibility e.g. "js-date-picker".
Now my incoherent ramblings are probably lacking in a number of points, I had
to leave out a lot so this didn't balloon even further (e.g. I didn't talk
about specificity or BEM methodology). I urge you to read all the articles
I've linked to, as hopefully you've already read the original one. You might
also want to read this article which kinda covers everything in one post:
[http://engineering.appfolio.com/2012/11/16/css-
architecture/](http://engineering.appfolio.com/2012/11/16/css-architecture/)
Most of the principles I've outlined here are actually used in bootstrap.
PS. if you want to continue the conversation, hit me up on twitter
(@WickyNilliams) or something, I always forget to check back on HN comments
for replies.
[1] [http://www.stubbornella.org/content/2010/06/25/the-media-
obj...](http://www.stubbornella.org/content/2010/06/25/the-media-object-saves-
hundreds-of-lines-of-code/) [2] [http://csswizardry.com/2012/06/the-open-
closed-principle-app...](http://csswizardry.com/2012/06/the-open-closed-
principle-applied-to-css/) [3] [http://csswizardry.com/2012/04/the-single-
responsibility-pri...](http://csswizardry.com/2012/04/the-single-
responsibility-principle-applied-to-css/) [4]
[http://csswizardry.com/2012/10/a-classless-class-on-using-
mo...](http://csswizardry.com/2012/10/a-classless-class-on-using-more-classes-
in-your-html/) [5] [http://csswizardry.com/2013/02/responsive-grid-systems-a-
sol...](http://csswizardry.com/2013/02/responsive-grid-systems-a-solution/)
------
weego
Meh, at some point they should start to realise that you can't change
everything every release and expect everyone to keep up. It feels like it's
becoming more of a chore than the real initial win it was able to deliver on
first release.
~~~
jvzr
You don't _need_ to stay up to date with this kind of frameworks. It isn't
like every update has security fixes.
The company I work for uses several versions of Bootstrap 2 and we have no
issue dealing with it. Newer projects will use BS3, but we don't need nor feel
the need to update every project.
~~~
steveklabnik
There is an image gallery plugin that I use that secretly downloads its own
latest version of bootstrap, which can conflict with the one you have loaded,
breaking everything :(
~~~
nahname
It must be a very good library to be chosen in spite of that behaviour.
~~~
steveklabnik
As you might tell by my :(, I wasn't aware that it did this until quite
recently. When it broke my site.
------
WickyNilliams
Is there actually a changelog somewhere or will that be written up with the
full official release? I can't see anything detailing what's changed
Also, it's a damn shame they're still using pixels for everything (from a
cursory glance). Fluid grids (i.e. %-based) and ems (for font-size and media
queries) are much better. They are infinitely more flexible and much more
easily adaptable to any layout.
~~~
pixelmonkey
The Bootstrap 3 pull request has a lot of details about what is changing:
[https://github.com/twbs/bootstrap/pull/6342](https://github.com/twbs/bootstrap/pull/6342)
~~~
WickyNilliams
Thanks, that's really comprehensive (perhaps too low-level for the end-
consumer to care about).
Reading through that PR it seems they are actually using percentage-based
grids now, but the grid containers are fixed width (and probably defined in
px). That's definitely better than completely fixed width grids, though I'd
much prefer having max-width on my containers instead of an absolute value,
and relative values used throughout
------
dave1010uk
This looks like the changelog:
[https://github.com/twbs/bootstrap/pull/6342](https://github.com/twbs/bootstrap/pull/6342)
------
nateweiss
While simple, I believe Panel and Listgroup are new components; nice to have
those nicely implemented and styled in the framework. Will be handy for me. In
many ways I think Bootstrap helps the most with the little things like this. I
am very appreciative of this terrific framework being made available for us to
use.
------
NanoWar
Why is everything _flat_ :-C
~~~
joeblau
I think it's flat because it's easier to add CSS and build up widgets as
opposed to having a stylized widget, then trying to override the CSS to re-
customize each widget. Foundation, the original front-end framework which
Bootstrap emulates, works the same way.
~~~
jaredmcateer
Foundation doesn't isn't completely flat though. Buttons, for example, hint at
being intractable by giving a tiny bit of depth using the line at the top of
the object.
------
chrisweekly
A big improvement: the media queries are ordered properly, mobile-first. Great
decision.
------
phpnode
It's interesting to see that the references to twitter are basically gone now,
presumably this means we'll see more things from `Bootstrap` in future,
perhaps a company since it already has a lot of mind-share.
------
LukeWalsh
The nav bar that automatically collapses for mobile is an excellent addition.
This is one of the main things lacking in quickly made prototypes.
~~~
nadaviv
This exists in Bootstrap 2 too:
[http://twitter.github.io/bootstrap/2.3.2/examples/fluid.html](http://twitter.github.io/bootstrap/2.3.2/examples/fluid.html)
------
jasonkester
Bug report:
- open on iPad in landscape
- navigate to a long doc page
- scroll halfway down
- rotate to portrait
Expected: content scaled to fit
Actual: content zooms way in, document scrolls several pages
- rotate back to landscape
Expected: content returns to previous view
Actual: content zooms even further
~~~
frakkingcylons
It's probably best if you submit bugs to their issue tracker:
[https://github.com/twbs/bootstrap/issues](https://github.com/twbs/bootstrap/issues)
------
db-dzine
wtf is wrong with the button ... srsly.
[http://s14.directupload.net/images/130729/kassm787.png](http://s14.directupload.net/images/130729/kassm787.png)
~~~
adventured
I'm on Firefox 22, and the same thing happens here. Mouse over download
button, click it, download pop-up appears, click cancel on the download,
button disappears. It re-appears upon giving focus back to the page.
~~~
epmatsw
Still happens in FF 25 nightly as well.
------
jzone3
Personally, I think the "Download Bootstrap" button is too ambiguous. Why is
the default color the same as the background color, it is just confusing and
ugly
~~~
wilfra
I love that button, think it looks awesome.
------
hearty777
I'm assuming this was design by committee. The first versions of Bootstrap
seem a whole lot better visually.
------
greaterweb
It's really unfortunate to see all the haterade being spilled over the
comments. The efforts to take Bootstrap to version 3 were pretty significant,
at the minimum they deserve a pat on the back for that alone.
Here are some important concepts I think a good portion of people are missing.
_Upgrading_ \- Don't upgrade for the sake of upgrading. If you have a fully
functional site right now which uses or extends a previous version of
Bootstrap your incentive to upgrade at this point is probably minimal.
At some point you had conceded that version X of Bootstrap was the right front
end framework for your project. If that has changed you need now concede you
have some work ahead of you.
Identify and evaluate the features introduced in Bootstrap 3 that are lacking
from your current project. Scope out the markup and stylesheet refactoring
required for any of the "must haves" and setup a schedule to integrate.
Realize that this doesn't necessarily mean you are bringing Bootstrap 3 into
your project, more so you may just be adapting your existing front end assets
to model Bootstrap 3 features/patterns.
This is really no different than an existing site that doesn't use Bootstrap
now wanting to bring the framework into their project. If you've identified
that you need Bootstrap 3 for your project, you would expect there is work to
be put in.
_Usage_ \- I see a number of comments critiquing design and usability. Is
Bootstrap really intended to solve those problems for you?
In my opinion this is a framework intended to bootstrap your front end assets
and development efforts. It prescribes conventions for common component markup
and their respective selector naming conventions.
Think about that for a moment how valuable that is to your project (especially
those with a large number of contributing developers). How many projects
previous to one using Bootstrap did you have such well documented markup,
style and naming conventions?
Bootstrap standardizes and documents front end patterns for rapid adoption and
implementation into your project. That's pretty damn special. If what they
promote doesn't align with your needs or development practices, well, don't
use it.
_Style_ \- Bootstrap wasn't designed for your site, your users or even to
keep up with the latest design trends. The styling, while in the view of many
is decent, seems to have been intentionally minimalistic and not overly
opinionated.
It provides basic structure and basic styling. It's your starting point. You
can get to your destination now a bit quicker without needing to reset their
style rules.
Having such minimalistic styles probably serves to be good motivation to get
creative. If you want custom and don't have the design ability to get there,
rest assured there will be a companion stylesheets to extend bootstrap coming
soon to at a market place near you.
_Inspire_ \- If the Bootstrap shoe fits, wear it. If Foundation, Pure or any
other front end framework fits the need, use it.
To me the great benefit of all these popular frameworks is they bring to light
many well thought out development approaches to the front end. Not everyone
will agree with them. They aren't always bullet proof. Though at the end of
they day though they invoke developers to take a look at their individual
assets and recognize areas of improvement.
Find the framework or approach that best aligns with your needs and personal
preference and customize the hell out of it.
------
da_n
This is awesome work, well done to the Bootstrap team.
------
dangayle
Other than the grid, it looks like all the classes and markup are the same.
I wish the examples used more semantically meaningful html5 elements where
appropriate, but that's not too big of a deal.
~~~
mrgreenfur
I noticed last night that the forms have been cleaned up a bit and outfitted
with new class names
~~~
dangayle
Oh, I missed the forms. I haven't had much call to use them in my current
project, so I missed those.
------
hawleyal
The CSS/JS on the website is broken.
| {
"pile_set_name": "HackerNews"
} |
Show HN: Deb-simple, a no fuss/frills apt repo server - johnnycarcin
https://github.com/esell/deb-simple
======
justinsaccount
Shouldn't createPackagesTar be createPackagesGz ?
~~~
johnnycarcin
Probably ;) fixed!
| {
"pile_set_name": "HackerNews"
} |
The Substance Found in Pencils will Speed Up our Computers One Thousand Fold - cwan
http://hplusmagazine.com/articles/toys-tools/graphene-next
======
vl
As it quite often happens it's better to read wikipedia article:
<http://en.wikipedia.org/wiki/Graphene>
than to suffer through things like "substance found in pencils"
~~~
po
I hate how science writers get to the part of the article where they have to
write about why it is useful. They usually start dipping into their stock
cliché material. This one is particularly bad. The whole last half of the
article is junk.
------
hga
Check this out, it sounds like it might be fairly near term stuff, e.g.
Fujitsu is depositing it on Si wafers, IBM has preliminary (large and
hopefully slow) 30GHz test transistors, which is where Si maxes out according
to a linked article at the bottom.
| {
"pile_set_name": "HackerNews"
} |
Vulnerability in Internet Explorer Could Allow Remote Code Execution - lelf
https://technet.microsoft.com/en-US/library/security/2963983
======
eps
Mitigated by EMET.
If you are on Windows and you are _not_ running EMET, you should really drop
everything right now and install it.
[http://www.microsoft.com/emet](http://www.microsoft.com/emet)
~~~
bananas
No you shouldn't.
1\. It breaks a lot of stuff.
2\. It isn't very good:
[http://bromiumlabs.files.wordpress.com/2014/02/bypassing-
eme...](http://bromiumlabs.files.wordpress.com/2014/02/bypassing-emet-4-1.pdf)
At best it's a dose of Tamiflu.
As many people before have said, you can't retrospectively apply security
mitigations properly; you have to design them in from the start.
~~~
Spittie
1\. Really? I've been using it for a while, and no breakage. Sure, I just use
the default rulelist instead of applying rules to everything (which imo is
what most people should do).
2\. Sure, but it's better than nothing. As parent said, this exploit is
mitigated by EMET. See [http://rationallyparanoid.com/articles/emet-
testing.html](http://rationallyparanoid.com/articles/emet-testing.html) for
more tests
Yes, it's a bandaid. But since it help and it's free, why not?
~~~
bananas
We've had a couple of older COM-based applications that target Windows 5.1
(2003/XP) platforms fail unpredictably with it on later operating systems.
Whether these are just badly behaved applications or compilers or a faulty
design in EMET we don't know as it's all closed source and when you're left
with a steaming minidump (because you can't catch these unless you use ADplus)
it's not easy to work out why a process failed from that if EMET shot it.
As for the better than nothing, yes until your phone starts ringing like a
cheesy sci-fi flick because half your MSMQ sinks are crashing...
My comment above probable shouldn't have been: no you shouldn't use it until
you've soak tested your applications on it.
~~~
noinsight
EMET should show a notification when it blocks something and it should also
make an event log entry. (These are configurable iirc.)
------
mkempe
The subtitle has the meat: "Vulnerability in Internet Explorer Could Allow
Remote Code Execution".
"Microsoft is aware of limited, targeted attacks that attempt to exploit a
vulnerability in [IE 6 through 11]." \--date published: April 26, 2014.
~~~
easy_rider
I think remote code execution and the easy method for payload delivery
warrants a high level of concern.
~~~
rainforest
It seems from the subtitle that this isn't just a known vulnerability, but one
being exploited in the wild, if I'm not mistaken. Definitely a serious concern
either way though.
------
ld00d
XP is absent from the list of affected OSes. Does that mean XP isn't affected,
or is it just off the radar now that it's no longer supported.
Could this be the first big unpatched XP hole?
~~~
0x0
Isn't there an extended, for-pay support service for xp? In that case, it must
mean a patch will be engineered and released to paying customers. How long
until these leak out and pirates start trading XP patches?
~~~
TheLoneWolfling
How long until people start offering unofficial patches that include
backdoors?
| {
"pile_set_name": "HackerNews"
} |
Karma Is Coming - mitko
https://dimitarsimeonov.com/2019/08/20/karma-is-coming
======
Causality1
I disagree. Call-out culture is not karma. Karma is equal reward for good as
punishment for bad. Call-out culture is informational natural selection that
benefits the most outraging story, whether or not it's even true.
| {
"pile_set_name": "HackerNews"
} |
Custos is using Bitcoin to turn digital pirates against each other - eddyg
https://qz.com/1028528/custos-startup-uses-bitcoin-bounties-to-make-pirates-rat-on-one-another/
======
badosu
> _Custos embeds imperceptible bitcoin private keys in the digital files, with
> different keys for different advance copies of a movie or ebook. (...)
> At the same time, Custos makes a piece of free software that screens movie
> files for these private keys and markets the screener to content pirates.
> Pirates now have an incentive to check pirated movie files in case they
> contain a key. If a key is detected, the pirate can claim the bitcoin
> bounty—usually between $5 and $10—and is free to keep it. But once a bounty
> is claimed, Custos is alerted, and can begin the process of figuring out the
> origin of the leak._
This is really clever! A very interesting social experiment with some game
theory dynamics on the way.
~~~
Blahah
Seems pretty self-defeating. I'd just strip the keys and not claim the bounty.
This whole system depends on pirates wanting $5 more than they want to pirate
the thing, which from my 10 years around release and fxp groups in my younger
days, I can say is barely ever the case.
~~~
codezero
I'm assuming the keys are embedded before it's leaked like a watermark of
sorts. The leaker isn't the pirate in the scenario described _I think_.
~~~
Blahah
Ah! I read the references to pirates as referring to the person sharing the
file online from an original source. But someone just torrenting it or
something makes a lot more sense as the target here.
------
Adverblessly
Maybe I don't understand something?
John Doe, random employee working for Universal Studios leaks an advance copy
of "The Revenge of the Avengers: The Revengers Strike Back" to their contact
XPirateSepirothX for 250$ (or for free because they really want to get back at
their boss for laughing at them).
XPirateSephirothX passes on the watermarked movie to their friendly
neighbourhood reencoder IAmBecomeDeath who notices the watermark strips it,
and reencodes the movie for general consumption.
The pirating public receives an unwatermarked copy and cannot claim any prize.
IAmBecomeDeath, XPirateSephirothX and John Doe have no incentive to claim the
prize because they will implicate themselves in copyright violation.
Are they implying the watermark is impossible to remove? That seems unlikely
to me as pirates can be quite enterprising (and there may be some money on the
line for them as well), so I'd expect them to reverse engineer the process and
figure out how to strip it. Heck, this company is even offering an application
that checks if the watermark is present or not which should at least give the
pirates a measurement on whether their watermark removal method worked (on at
least some version of the watermark detection logic).
Or maybe the plan is to play a constant game of cat and mouse, Custos will
continually switch up their methods for watermarking and so the pirates will
never be sure if they caught and successfully stripped the latest and greatest
version of the watermark, preventing some piracy through uncaught watermarks
and some piracy through fear?
~~~
anilgulecha
> IAmBecomeDeath who notices the watermark strips it, and reencodes the movie
> for general consumption.
Or wants the $$, so claims it, putting down a breadcrumb. (Atleast that's what
the technology in the article is for.)
~~~
horsawlarway
It's not lucrative enough. The product is worth far more than the measly
bounty. Sure, claim that 15 dollars in bitcoin, and _never_ receive another
pre-release copy again, or... strip it and continue business as usual.
This model really only works when most encoders are not aware the tag is there
at all, and don't strip it.
Alternatively (as some other comments suggested) Custos buries additional tags
without revealing them, in which case they act just like all sorts of other
watermarking companies doing the same thing (not terribly effectively).
------
plus
If it is possible to strip the private key, e.g. by re-encoding, then an
intelligent and determined leaker would simply do that before distribution.
They likely won't be tempted to take the reward for themselves, given the
consequences, and by stripping the private key they can prevent anyone else
from claiming it. I suppose this would catch less savvy leakers, though.
Edit: To be clear, I understand that digital watermarking techniques can be
resilient to a simple re-encode, but since Custos is providing the tool to
claim the reward for free to pirates, it should be possible to reverse-
engineer the tool to identify and destroy the watermark.
~~~
dragonwriter
Reading data out of an enclosed file is much less of a problem than altering
that data without damaging the file. All you need for “screening” and
“claiming” is to read out the keys and check if the funds have already been
transferred out on the blockchain and, if not, transfer them out. There's no
alteration to the file content involved.
Destroying the keys requires altering the file while leaving it functional,
which requires more than reverse engineering the tool, because the tool
doesn't need that capacity.
~~~
plus
My point is that if you can identify how the private key is stored in the
video, then it should be possible to develop a strategy to destroy that data
without damaging the integrity of the file. Presumably the key will be hidden
in such a way that it won't be obvious to viewers (that is, it won't be a
_literal_ watermark). If that's true, then it should be possible to destroy
the key without making the video quality noticeably worse, e.g. by selectively
re-encoding certain parts of the video in a certain way that ensures
destruction of the private key. Of course I'm speculating, because I don't
know exactly how the private key is stored in the video, but video quality is
a lot more robust to bit massaging than a hidden digital private key would be.
------
tuxxy
This is neat, but I can't help but feel it's not going to work.
It would work if you encounter a movie that you wanted to watch, decide you
want the money instead, and you report to Custos.
This is not how piracy works.
Instead, a pirate knows the value of the good they have. They know it's worth
more to their reputation in the community than $5-10 dollars. By setting a
bounty on it, you'll just have others willing to pay more to leak it
themselves. This is an experiment, not a business.
~~~
simias
You don't "report" to CustOS directly, rather you simply move the money from
one of the CustOS "bounty" private keys into one of your own.
Effectively it does the same thing but I think psychologically it's pretty
different. For one thing you know that the bitcoin transaction will be very
hard to trace (you can't be betrayed by your IP address or something like
that) and you don't really rat anybody, you're just moving bitcoins. If you
don't have any direct relationship with the original leaker (say, you
downloaded the file through bittorent on some private tracker) there's really
no incentive not to claim the bounty. It's free money.
I wonder what happens if a legitimate recipient of one of these copies decides
to claim the bounty without actually leaking anything. Could they be in
trouble? If people accuse them of leaking a copy and they show that they have
control of the coins, will they be off the hook? Do they have to sign
something that forbids them from using the key?
~~~
pavel_lishin
If I were a pirate/leaker/sharer, I would be very tempted to just paste the
key on some completely unrelated forum to lay down a false trail.
~~~
philh
What does that get you? If I understand correctly, I don't think the content
owner finds out who uses the private key. They find out that the key has been
used, which normally means that someone leaked the file to a pirate, and tells
them who leaked.
~~~
simias
Plausible deniability? Since there's an other way for somebody in the wild to
have had access to the key without IP violation you could claim that you never
leaked the file in the first place.
Of course it's one of these smartass "hacker technicalities" that may not hold
much water in a court of law.
~~~
kgwgk
So your defense would be that you didn't leak the file but you did leak the
key?
------
grizzles
It seems like a good way to drive awareness of digital watermarking in the
file sharing community.
------
jakobegger
The big disadvantage with this scheme is that the publisher needs to pay the
reward in advance for every copy they want to protect. That‘s why the rewards
can‘t be big. (The publisher could of course keep the private keys and redeem
unclaimed rewards themselves after some time, only risking currency
fluctuations)
~~~
rtkwe
How much do they have to actually stock though? 50-100k USD ($5-10 over 10000
screeners) is a good bit of money but they'd probably only pay out a tiny
portion of that and compared to the budgets of a large blockbuster it's not
that large of an outlay.
If they can reliably embed multiple private keys into the screener DVDs they
could get by with having fewer account and using the combination of accounts
as the key. Though really if they're able to embed a whole private key in a
way that survives encoding why bother with the bounty, though I guess that
saves them the trouble of having to go find torrents/rips themselves.
~~~
jakobegger
This is a brilliant idea! Since we expect only a handful of leaks, each
screener could contain lets say around 100 bounties of $10, with 200 bounties
total. Then the first leak would be worth $1000, the second leak $500
(expected value) etc, and the studio only needs to pony up $2000 in total. We
are guaranteed to be able to identify the first leak, I'm not sure if we can
identify further leaks (there is probably some kind of trade-off between
payout for the first leak, total amount of bounties, and probability of being
able to identify further leaks, but the mathematics of this is probably not
trivial.
------
0x0
I looked around their web page but I couldn't find the "freely available
bounty hunter tool" they are talking about. Does it exist somewhere or is this
not actually launched yet? They are saying that individuals in pirate circles
are already hunting bounties with this tool...?
------
air7
tl;dr: Scenario: Studio sends 10ks advanced copies of their film to reviewers
before screening. One of them gets leaked. They want to know who leaked it.
Custos embeds a "watermark" in the copies that contains a private key of a
bitcoin wallet containing 5$. Each copy has a different wallet. When anyone
down the pirate chain decides to take the money, Custos knows who the leaking
source was. Benefit over traditional watermarks is that they only have to
monitor the wallets.
IMO this is quite a clever idea because even after pirates start scrubbing the
key off, there will always be an incentive to claim the money, perhaps much
later when someone can get many of them at once. It will seed distrust that'll
be hard to weed out.
~~~
delinka
If cashing out were delayed well past the statute of limitations, it'd be
interesting to see the repercussions.
------
anotheryou
I see no advantage over traditional invisiblee watermarks.
A movie usually just leaks once or twice, these leaks get replicate
everywhere. So if you are looking for a specific movie, just get a pirated
copy from anywhere and check the watermark yourself. It's trivial to check if
there is a leak at all and also trivial to find that leaked version and test
it. No need to throw 15 bucks per copy on it, just let the intern monitor some
torrent trackers.
~~~
icebraining
I think the difference is that the person who spreads the movie over the
trackers, who is not necessarily the original leaker, now has an incentive to
report it, whereas with regular watermarks they'd simply remove it before
distributing over those public channels.
Of course, it's hard to see such person being in a position to receive many
leaks in the future, after burning the original leaker, so the incentive seems
quite small.
------
bcoates
Calling "Insider gets the master private key list, steals all the bounties" as
the way this turns out.
------
borne0
I don't get it. Any 'damage' to the studio happens when the movie is publicly
leaked, at that point just download the copy yourself and check for a
watermark, telling you where the leak originated without ponying up $5-$10
(which is a paltry sum to begin with).
~~~
Matt3o12_
For this, the company has to first find the leak version. This means they need
people to monitor all kind of sites for this material. With the bitcoin
method, the company only needs to monitor a bunch of bitcoin wallets and, as
soon as a transfer is made, the are aware of the leak immediately (with much
less men power. Furthermore they also don’t need people who have access to
those “private” torrent exchanges).
Furthermore, their response times are pretty awesome (if they are in fact
true):
> Van Rooyen claims once a leaked copy containing a bounty hits the dark web,
> it takes just five minutes on average for the bounty to be claimed and
> Custos and its client to be alerted. On social networks it takes 42 seconds;
> and offline, like if a movie is copied or shared on a DVD or USB drive, it’s
> 28 minutes.
------
mustafabisic1
“You just need a single rotten apple in that group,” he says.
Reminds me of my Primary school teacher :)
Custos did it masterfully.
------
nfriedly
Hah, now some pirate is going to try and figure out how to get all of the
private keys :P
~~~
rtkwe
Beyond just hacking into Custos and stealing them or Custos using a somehow
predictable keygen (not even sure that's really a thing?), in doing that
they'd be tracking down all the leaks which is exactly what Custos and their
customers are wanting.
In reality only a few screeners seem to leak for any given movie.
------
test6554
What's to stop the intended recipient of the movie from intentionally and
unabashedly claiming the bitcoins for themselves.
~~~
et2o
1) It marks them as a "leaker" 2) If you keep claiming the bitcoins, you are
going to stop getting videos sent to you. This could have professional
implications.
~~~
pavel_lishin
You can claim the bounty without leaking the film, though as you point out,
this could prevent you from being sent films in the future.
------
drewbuschhorn
It's a great idea from a game theory perspective, but I think an adversarial
neural network plugin built into vlc as a preencoding step would probably
defeat it pretty quickly with minimal quality loss.
You just can't effectively watermark data intended for human consumption, our
tolerance for intentionally induced noise is too high.
~~~
plus
I don't want to be confrontational, but I really don't understand the point
you're trying to make. Why a neural network, why VLC? I understand that you
are suggesting it would be possible to strip the watermark, but the way you've
said it sounds a lot like "create a GUI interface using visual basic, see if I
can track an IP address"[0]. Which is to say, you've not said what you would
do to defeat it, but how you think it would be implemented... which doesn't
really tell us anything about HOW you think it could be defeated.
>You just can't effectively watermark data intended for human consumption, our
tolerance for intentionally induced noise is too high.
If this were true, steganography[1] would be useless in practice (it isn't).
I would suggest reading up on digital watermarking[2].
[0]
[https://www.youtube.com/watch?v=hkDD03yeLnU](https://www.youtube.com/watch?v=hkDD03yeLnU)
[1]
[https://en.wikipedia.org/wiki/Steganography](https://en.wikipedia.org/wiki/Steganography)
[2]
[https://en.wikipedia.org/wiki/Digital_watermarking](https://en.wikipedia.org/wiki/Digital_watermarking)
~~~
drewbuschhorn
> I don't intend to be confrontational
Of course you do, or you wouldn't end the comment with "I suggest you read up
on."
Stenography is only useful when it's unknown or impractical to investigate
possible payloads, either do to volume of possible hits or lack of knowledge
how to decode the payload out of the source. If you tell an opponent: here is
the decode technique and here is where the message is likely to be, you've
basically defeated your own stenography.
~~~
plus
It is true that my intention was not to be rude. My "I suggest you read up on"
comment was in response to your claim:
>You just can't effectively watermark data intended for human consumption, our
tolerance for intentionally induced noise is too high.
Which is simply not true! That kind of misunderstanding suggests that you are
unfamiliar with the kinds of digital watermarking that are used TODAY, hence
my suggestion that you read up on it. If the comment came off as rude, I
certainly apologize, but I stand by the point I was trying to make.
>If you tell an opponent: here is the decode technique and here is where the
message is likely to be, you've basically defeated your own stenography.
I agree with you on this point 100%. I also made a post to that effect
elsewhere. But that is not the same argument you made in your previous post!
| {
"pile_set_name": "HackerNews"
} |
Compiling to CPS Javascript (part 2): stepping debuggers, no callback hell, etc - jlongster
http://jlongster.com/2012/05/18/cps-results.html
======
mahmud
Very interesting. Seems like you're having heckova time, cheers! :-)
| {
"pile_set_name": "HackerNews"
} |
Spain Runs Out of Workers with Almost 5M Unemployed - dismal2
http://www.bloomberg.com/news/articles/2016-07-01/spain-is-running-out-of-workers-with-almost-5-million-unemployed
======
knocte
> Pimentel’s client asked him for list of candidates trained in “Agile”
> project management techniques for helping companies boost their productivity
> by using more I.T. systems. The client was offering as much as 200,000 euros
> ($220,000) a year -- almost 10 times the average salary in Spain.
> But such people are thin on the ground in Spain. It takes at least eight
> months for an experienced software developer to earn an Agile qualification
> and they also need the ability to deal with senior executives, limiting the
> pool of people who could potentially fill the roles.
That part of the article is hilarious, not only because 200K euros is
completely made up and untrue (by far surpasses best salaries in other more
decent countries), but because of the Agile qualification mention. Do we have
Agile certifications now? What a load of bullshit.
The only truth in the article is this:
> Spanish executives are less-skilled than their competitors in Germany,
> France or Italy, according to a study of 11 European countries. Only Greece
> came out worse.
And that's the reason why the executives don't find workforce. Being less-
skilled means they don't value the engineering profession up to the required
level to compromise and give good salaries.
(Spanish dev here --working abroad obviously--.)
~~~
logingone
Agile is barely different to how teams I worked on in the 90s operated,
naturally, without trying to implement and enforce a new holy grail, chase the
rainbow routine of machinic efficiency. I find it really is much ado about
nothing, the emperors new clothes. An anal retentive formalising and
trumpeting of common sense. I recall only one project which was waterfall, and
the rest were used as soon as they were useful. I have an agile coach at my
current job. As far as I can tell his job is to be the expert at drag and drop
in Jira, and peeling post it notes. The only good thing I can say about agile
is that it fills a space that will otherwise be filled with the next holy
grail gimmick which management won't be able to resist as they sell themselves
and their new magic power up the corporate ladder. I'm neck deep in this farce
at the moment.
~~~
kpil
Sure. A lot of "Agile" is actually cargo-cult agile, used as a vehicle for
self-promotion: The daily scrum, the sticky-notes or the Jira.board, and all
that other ceremony.
Typically retrofitted on top of a defunct process, with separate requirement
analysts, "software architects" whatever that means, and a lot of control
functions and processes inherited from the manufacturing industry.
What makes that work is probably the few people that actually understands
software development - typically a low percentage of the massive overhead in a
typical business software development center.
But you've got to start somewhere.
The Agile ceremonies are not bad, but relatively useless if there is no "real
Agile" beneath. Unfortunately, they are easy to implement whereas "real" agile
is not.
And what is "real" agile: The core agile ideas (the manifesto), the focus on
flow-control, the incremental analysis-build-analysis cycle, continuous
improvement, multi-disciplined teams, knowledge sharing, analysis methods that
involves multiple people (like story mapping), empowerment (self governing
teams, but also product owners).
Perhaps above all, the idea that software development processes should not be
defined by business administrators, but instead by people that are actually
qualified.
I guess it could be labeled as "common sense", but a few things are typically
hard to reason about for a lot of people, for instance the flow-control part
(such as kanban), as dynamic efficiency is harder to "see" than static
efficiency.
But getting good at that is actually hard. Adding 1000 fields and workflows to
Jira is easy.
~~~
Retric
Process is not going to fix a toxic work environment. But, it can make a
positive difference over time.
Many teams start out productive, but they also tend to degrade over time. How
many 10 year old projects have you been happy to start working on? How about
20?
Those are the places most in need of someone to cut the bullshit.
------
vemv
Spanish dev here, 3 years in the business, been twice a freelancer and twice
an employee. My main complaints:
\- The maximum salary a developer can earn at any given company is almost
written in stone - around 36000 euros. Every public job posting will have that
figure as the max. When it's higher, they'll water it down in the interview.
Why? Probably because they don't have the notion of a 10x programmer at all.
We all are perceived as 'equal' or even replaceable.
\- Also, companies are scared of the mere possibility of their programmers
leaving. The sole hint of that you may leave will turn their red alarms on,
and they'll start searching a replacement.
There rarely exists here the mentality that a work relationship is a
commercial exchange, not an intimate family-like relationship. Being open to
the market is not 'treason'.
\- Tech stacks tend to be years behind San Francisco, whether is languages,
frameworks, ops practices...
\- Functional programming opportunities extremely scarce. Elixir is gaining
traction here though.
~~~
charlesdm
Have you considered working remotely for a US company? I know a guy making €7
or 8,000 per month, after tax, living in Paris. Best of both worlds: amazing
quality of living, cheap cost of living + healthcare, lots of spending (or
investing) money! Seems to be working well for him.
~~~
jules
Is the cost of living in Paris less than a normal US city?
~~~
fchollet
Paris is much less expensive than the bay area, but more expensive than the
average US city. In fact, it's barely less expensive than NYC, one of the most
expensive US cities.
Also, if you are working remotely you cannot command a bay area salary.
~~~
gorkemyurt
So you are saying NYC is much less expensive than Bay Area?
~~~
fchollet
Yes. Specifically, rents are much higher in SF/SV than in NYC. SF has even
higher rent than Manhattan. Most of NYC (not Manhattan or Williamsburg) can be
quite reasonable.
~~~
feklar
Does SF gave rent brokers you have to go through? Manhattan you have to pay
first/last rent to a broker plus deposit you need around 8-$12k to sign any
lease up front
~~~
JBReefer
Brokers fee is one month, not two, and the outer boroughs are much cheaper.
~~~
dlandis
Broker's fees of 15% or even 20% seemed to be fairly common last time I was
looking in Manhattan several years ago. It's definitely not pegged at one
month anymore nowadays even in Brooklyn.
------
altoz
You have two groups:
1\. 5 million unemployed people 2\. very highly sought after workers
The employers complaining about people in group 2 being scarce are merely not
paying enough. The workers complaining in group 1 need more skills that the
market wants. They're at different ends of the spectrum.
Other than that they live in the same country, they really don't have much to
do with each other. Whether you can convert people from group 1 to group 2 is
an interesting question, but generally if it were easy to be in group 2, a lot
more people would be in it.
~~~
charlesdm
Very true. Just compare salaries of software engineers in most EU countries
with salaries in the US.
If you're a good developer, 99% of the time it's better to work remotely from
Europe for a US company. It really is a simple problem to solve -- pay
talented people in Europe more. And yet, for some reason, this is often
dismissed by CEOs as a ridiculous statement. They're probably the same people
who think you need 100 software engineers to complete a complex technology
project.
~~~
duckingtest
I don't think it's that developers are underpaid in Europe. They are just
objectively less productive there. After all it's a very specialized job that
requires modern, developed economy open to disruptions to be really
productive. On the extreme opposite end of a spectrum - a pre-industrial
economy - a developer's productivity would be zero.
American nominal GDP per capita is 2.13 times that of Spain's and 1.38x that
of Germany's, and the distance keeps increasing. There are many possible
causes, but I think lower salaries are a symptom.
~~~
pcrh
GDP per capita seems to be a curious way to estimate if a local dev is likely
to be productive. Would a Luxembourgish, Swiss or Norwegian dev be expected to
be more productive than one from the US or UK?
It seems to me that the prime determinant of pay is how close the worker's
"category" is to the money. So in a start-up intensive environment like the
Bay Area, the devs are also sometimes the executives, and executives are often
former devs, so devs get paid correspondingly.
~~~
duckingtest
Switzerland does have higher average pay CHF 91,374 = $93,703.5 [0] compared
to USA $68,082 [1]. Their nominal GDP per capita is 36.62% higher and the pay
is 37.6% higher.
Norway interestingly has almost the same pay as USA - $68,737 [2], probably
because of high share of oil extraction in GDP (22% [3]) which skews the
result. If you subtract oil share from the GDP, you get $56,195.88 nominal GDP
per capita, which is almost the same as the American one ($57,220)!
Now Luxembourg is a tax haven/financial center with a population of half a
million so I don't think it's a relevant comparison. Just due to population to
get something close to true pay average you would have to ask a relatively (to
other countries) very big percentage of their developers.
Same site for comparable data
[0]
[http://www.payscale.com/research/CH/Job=Software_Engineer/Sa...](http://www.payscale.com/research/CH/Job=Software_Engineer/Salary)
[1]
[http://www.payscale.com/research/US/Job=Software_Developer/S...](http://www.payscale.com/research/US/Job=Software_Developer/Salary)
[2]
[http://www.payscale.com/research/NO/Job=Software_Developer/S...](http://www.payscale.com/research/NO/Job=Software_Developer/Salary)
[3] [https://www.ssb.no/en/befolkning/artikler-og-
publikasjoner/_...](https://www.ssb.no/en/befolkning/artikler-og-
publikasjoner/_attachment/237252?_ts=1516c73e3a8) page 40, graph
~~~
igravious
Dude. You're not getting the objection. We're not objecting to the numeric
ratios, we're objecting to using those numbers in the first place.
> GDP per capita seems to be a curious way to estimate if a local dev is
> likely to be productive.
Curious is putting it mildly. :) What is being objected to is your _measure_.
Stop using the GDP per capita _of an entire country_ as a proxy for software
developer productivity. It's frankly stupid. Anyway GDP per capita using PPP
(purchasing power parity) is seen as a fairer comparison. But even GDP per
capita by PPP is a stupid metric to compare software developer productivity.
I'm sorry for using the word stupid. But it's stupid.
~~~
duckingtest
>Stop using the GDP per capita of an entire country as a proxy for software
developer productivity. It's frankly stupid.
Outside of entertainment where software is a direct consumer product, the
developer's productivity comes from increased efficiency of use of other
productive resources. You can't eat code, but you can eat food that comes from
higher production due to better software. So software has a multiplicative
effect on existing production. That is, GDP.
Now even added value of entertainment software (games etc) depends on total
GDP, because people have to pay with something for that entertainment.
So average developer's productivity IS a function of GDP, with different
coefficient depending on the structure of a economy.
A primitive non-mechanized agricultural economy would have a coefficient of
near zero because there's almost nothing to automate.
>Anyway GDP per capita using PPP (purchasing power parity) is seen as a fairer
comparison.
A fundamentally wrong metric because pay is nominal.
~~~
pcrh
This way of estimating a dev's likely productivity would operate independent
of their individual ability, as well as be applicable across all worker
categories. For example a dairy farmer in Switzerland earns more than one in
Poland because people pay more for milk products in Switzerland compared to
Poland.
So why would the GDP per capita of their country be a useful tool in deciding
who to hire?
~~~
duckingtest
>For example a dairy farmer in Switzerland earns more than one in Poland
because people pay more for milk products in Switzerland compared to Poland.
A Swiss farmer is much more productive when measured in currency units, but
probably not that much in milk volume.
However as we are talking about salary differences it's money that matters.
>So why would the GDP per capita of their country be a useful tool in deciding
who to hire?
Why would it be? In this conceptual model the ability of a developer is how
much he multiplies the output of whatever he's working on, but his
productivity is the absolute value of added output. How could it be counted
otherwise, in what? Lines of code?
If productivity didn't depend on location immigration wouldn't exist.
~~~
pcrh
I guess it depends on the sense in which "productivity" is being used.
A remote dev working for a Bay Area company from Spain can be just as
productive for his employer as one located in Los Gatos, CA. However the above
method would categorize this dev as "objectively less productive", which seems
counter-intuitive...
~~~
duckingtest
>However the above method would categorize this dev as "objectively less
productive", which seems counter-intuitive...
It wouldn't, it purports to explain the differences in local salaries, or more
precisely salaries paid by local entities to on-site developers.
It's true I didn't specify that explicitly in the first comment, along with
definition of productivity, so your reading of it was a reasonable
understanding. It's a good thing you helped me clarify the intended meaning.
One assumption is that foreign demand (for non-local use) for local on-site
developers is small enough to not change the workforce demand significantly.
So it won't work for India or other common offshore destination, but it seems
to explain pay differences between USA and Spain, Norway and Switzerland
reasonably.
~~~
pcrh
In other words, pay differentials are more closely related to locale than to
the amount or quality of work produced.
------
whamlastxmas
The article says the average salary in Spain is around $22k. Even at twice
that, it's not hard to see why developers are not working for (or maybe even
in) Spain. I suspect the problem has more to do with Spanish businesses not
being willing or able to compete for developers with market salary rates.
It's frustrating that they don't provide data like that in articles like this.
Instead of they a single data point anecdote about how a company can't find an
Agile project manager for "up to" $220k.
How about comparing the percentage of software developers in Spain to the US?
Or discussing how the education for technology is different? Or what
percentage of the unemployed are developers? Or software developer salaries
compared to rest of EU. Or the number of Spanish developers working abroad or
for companies abroad. Instead have a graph of Spain's GDP and a graph showing
the size of their workforce.
This is why I rarely ever click on articles and only read the comments. Most
of the time it's the only place with any substance.
~~~
ldng
A lot of skilled Spanish dev have fled to Paris and London despite the high
cost of living of those cities and being paid less because they're foreigners
because it is still more rewarding.
In Spain, politician and corruption are pushing skilled people away. I have
seen (and heard of) too many people moving out to be just mere coincidence.
The subtlety is that most of the time the greedy consulting firm will keep
198K out of the 220K and the be surprised not to find anyone.
"Spain is different" as some friends say.
~~~
adwf
After Brexit, I'm very tempted to move in the opposite direction. If the
Spanish consulting firms can be undercut to that extent, there's a potentially
lucrative market.
Unfortunately I only know French and German, but I could learn Spanish
relatively quickly I guess. The corruption and politics is troubling however.
~~~
calgoo
Its not to bad. I live in Barcelona, the corruption is a problem, and will not
be solved soon. But thats such a deep problem thats going to take a long time
to solve. There is currently a a lot of talented local people and
international people who want to work here. A lot of the agencies pay between
15K and 25K on average for junior developers / administrators. However, you
can be stuck in the bracket for a long time unless you are able to find a way
to switch to a different position. The issue is once you get a job in the 30K+
group where its a lot harder finding anything. Let me know if you have any
other questions :)
------
franciscop
Spanish dev here. I created with some friends the most active Maker group in
Spain [1]. We won contests like Hyperloop's, NASA's SpaceApps (once winners,
twice finalists), making robot competitions [2], teaching to everyone, etc. A
couple of days ago we were talking about who would continue it, since ALL of
us are leaving the country for different reasons.
So I can say that I know what it means that skilled workers are leaving first
hand. Now I reverse the question, why would we stay? Spain has some great
things, such as weather, food and party, but it's horrible in any tech-related
industry.
For instance, I did a couple of internships to help with my University credits
and earn some money. I got paid per month almost the same that I'm getting
paid now every couple of days working as an US contractor. Not only that, now
I'm doing things that I really love, challenging but rewarding, collaborating
with the best people I know and living wherever I want. We made
[https://www.angularattack.com/](https://www.angularattack.com/) , now we're
launching a new one way better (not yet public though) and I'm helping doing
two websites for two of the biggest Venture Capital firms in USA.
Now tell me, why should I go back to working 9-5 for some company that doesn't
care at all about developers and treat us as code monkeys, for peanuts and in
horrible conditions? I had a horrible chair for example but there was "no
budget" for a better one.
It's a pity because the country gets worse, but it's also good since the hard
working Spaniards get the best -- even if it has to be outside. I am lucky I
can visit my sister in UK and my friends in Japan, Sweden, Germany and USA :)
[1] [http://makersupv.com/](http://makersupv.com/)
[2] [https://orchallenge.es/](https://orchallenge.es/)
~~~
imaginenore
Same shit in Italy and the Netherlands. I get with very low offers, recruiters
are shocked that I bill $100-150 per hour.
~~~
raarts
I work in the netherlands and I bill $125/hr.
~~~
jc80
I too, but with mainly US and Nordic customers -- my hourly starts at €250,
last contract was above €500
~~~
kofejnik
Wow, congrats, really envious here. May I ask - what industry and tech? And
how do you find those clients?
------
Daishiman
I'm wondering what is the cognitive dissonance with employers who are
unwilling to train workers. I mean, I understand the reasons if you're a an
SMB, but large corporations used to train their employees or hold something
close to apprenticeship programs.
I'm guessing this is more along the lines of "we want qualified work but we're
not really willing to pay for it"?
~~~
zeveb
> I'm wondering what is the cognitive dissonance with employers who are
> unwilling to train workers. I mean, I understand the reasons if you're a an
> SMB, but large corporations used to train their employees or hold something
> close to apprenticeship programs.
It was far less common for people to change jobs back then, too. Neither
employers _nor_ employees feel any real loyalty towards one another, so
investing in one another feels foolish. There's nothing to incentivise someone
to stay once he's learnt the skills he needs to get a position elsewhere.
~~~
ZenoArrow
> "It was far less common for people to change jobs back then, too. Neither
> employers nor employees feel any real loyalty towards one another, so
> investing in one another feels foolish. There's nothing to incentivise
> someone to stay once he's learnt the skills he needs to get a position
> elsewhere."
Sorry, I still don't understand this attitude. I live in the UK, it's common
here to have at least some level of on-the-job training, especially for jobs
where there's a skills shortage. In my experience, training opportunities are
a great way of building up company loyalty, you want to stay with the company
because you know you can progress in the company.
~~~
NetStrikeForce
Job culture in the UK is soooo much better than in Spain. I've worked on both
places, so this is first hand experience.
In Spain I would get sent to a training, because we needed to have someone
certified on that product to get discounts, then the company would ask me to
sign a contract to either stay with them at least two more years or pay a 2k
fine. The idiots only tried to do this after the training, thinking otherwise
I might just refuse to get trained. Of course I refused to sign, but I was
only one of the few who would refuse.
In the UK I even get to choose my training. Not just technical, but also on
soft skills. Even training that I might not apply in my current role, but I
might need to move to a new role.
The biggest shocker for me was the manager-employee relationship. In Spain the
manager owns you. In the UK the manager is a team member with a very specific
goal: make you and your team successful.
And don't get me started on leaving the office before your manager does... Of
course he would be the biggest sucker (otherwise you don't get to be a
manager) and won't leave until 8pm. Leaving shortly after your shift ended was
frowned upon by colleagues and verbally challenged by managers:
\- Where are you going?
\- Home.
\- Don't you have work to do?
\- Yep, that's why I'm coming back tomorrow again.
That company was terribly toxic and I have seen it destroy several families
and people's health.
~~~
cwilkes
> \- Don't you have work to do? > \- Yep, that's why I'm coming back tomorrow
> again.
Hah, good one.
I'm curious in this toxic situation doesn't it just take a few good companies
that treat their employees well to change things around? The good engineers
will flock there leaving the bad ones at the old companies.
Granted that probably means the managers will now try and get 2x the work out
of the remainders. Maybe some will get a clue though and change their ways.
~~~
NetStrikeForce
I thought about it a few times. What would it take to turn this around? Surely
I can take some capital and start a development company where the people are
treated better hence more productive, so I can deliver better products?
The problem is the customer. The customer ends up always being the government
(national, regional or local) and they have a higher degree of employees that
don't care about quality, so the big software factories (called butchers over
there because they sell you almost by weight) can put under payed, under
qualified and burned out developers on the project.
I have hopes on all the new tech companies flourishing around the country that
are looking outside Spain for their customers. I am hoping they will end up
shaping the market for good.
------
jandrewrogers
The gap isn't the pay or the training per se.
A growing issue I see frequently is that companies need more highly
experienced (read: senior) people, and are willing to pay for it, but there is
no fast pipeline from "no experience" to "highly skilled" even if companies
did invest in training. Meanwhile, the existing pool is much too small to meet
demand; redistributing the talent won't address the underlying issue.
Companies are hiring to fill a need _now_ , not 2-3 years in the future. The
company or product generating the demand might not even be around in that
time.
An unfortunate reality that people tend to ignore is that the length of time
required to train for the average high skill/high pay job has been
_increasing_. There are many high demand specialties in software that require
a _minimum_ of 2 years of hardcore experience to really be "experienced", but
you can't manufacture that overnight and the hiring companies have little use
for someone without that experience. Many companies with existing teams do
recognize this and hire a mix of junior and senior talent to generate an
internal pipeline but you still need the senior talent when building teams in
the first place.
Reallocation of people sounds simple but it doesn't account for the increasing
latency of acquiring a different skill set at the level of quality required to
perform the jobs that actually exist. It is a sticky problem because it is a
bit of a vicious cycle.
NOTE: this is a more general observation, Spain has its own peculiarities.
~~~
kartan
King hired in Barcelona a lot of highly senior developers, people that were
leading protects, being architects, etc in other companies. How? Better pay,
better conditions and it gives more autonomy to the developers.
A fraction of them are talent brough from abroad because they wanted to live
in Barcelona. So it is less hard to find talent when you are willing to be
competitive.
~~~
vacri
> _willing to be competitive._
On the other hand, it's not like businesses have a big bag of gold that they
can simply choose to dip into to increase salaries, especially for the smaller
shops.
------
muse900
Greek here, living and working abroad.
Spain is doing a bit better than Greece but its on the same boat.
When I speak with friends back home, I do get a feeling that they don't want
to work. Is it because they are lazy? part of me wants to say yes. I can't
ignore the fact that the working conditions are awful. Salaries are quite low
compared to the rest of Europe, an employer has full control over you, and can
fire you any time. An employer won't ever promote you. They will just hold you
as long as they can and then they will just hire someone else for less money.
Also when you have internet and so much information avaialble to you, and you
can see what are the working conditions in other Countries it kinda makes you
sad.
I live in London, and tbh there have been many times that I've been thinking
what am I doing here. London is quite expensive and the salaries are not as
high compared to rent, food etc (at least for developers).
Now I just made this comment in order to give an overview of whats going on to
a country that is on the same boat as Spain.
~~~
inoop
> I can't ignore the fact that the working conditions are awful
one of the great things about the EU is that people can freely move inside it
and work wherever they want. Nothing is stopping your friends from doing what
you did - seek employment elsewhere.
At the same time, if Greek and Spanish companies want to survive they'll have
to learn to adapt to the new order and treat their people better, or perish.
~~~
noinsight
> one of the great things about the EU is that people can freely move inside
> it and work wherever they want.
That's true in principle but languages are an issue. In Nordic countries
everyone will speak English but central Europe is different. You might get by
with English but not everyone (or even most, depending on the country) will
speak it.
Do you want to go through the trouble of learning another language from
scratch? The culture will be completely different too.
Coming from Finland I've thought about moving somewhere else just for the
experience as it would probably be interesting, but I don't really feel like
learning another language when I already speak English.
I've also always wondered how difficult it would be to actually get a job,
especially if you don't speak the local language. Maybe with a rockstar
education and resumé it would be easy but what if you're "average" (at least
on paper)? Having worked for well-known international companies would probably
be beneficial.
------
kartan
Spanish here. I moved to Sweden, I prefer the business culture here. Less non
paid extra hours. More respect from managers. Better pay. Etc.
They rant about not being able to use more people as part time slaves. It's a
problem of using industrial business mentality in the high tech industry. They
care only for reducing salaries and getting long hours with no respect for the
developers that are expected to be code monkeys.
So yes, they don't find as a big supply as they want.
------
calgoo
So I live in Barcelona at the moment. I have 10 years of system administration
experience and 3 years of devops / sysadmin experience as well. The average
salary I am offered when I look around is between 25K and 45K Euros a year.
However, I would say the ratio is about 60% < 30K & 30% < 35K.
For friends and family that are looking it really depends. If you are lucky
and have / had a position in certain companies who are well known, you might
get into the higher bracket. If you dont, and for example only have a
University degree, then expect to start between 15K and 25K (unless from one
of the known private schools, in which case you can normally jump to the next
bracket).
From what I know, the two places to look are Madrid and Barcelona, but Madrid
normally list almost double the amount of jobs that Barcelona does (mainly
because a lot of headquarters are located there).
Another important thing that I have notices is that its a lot harder to climb
internally in companies here. It depends if the company has American business
culture or Spanish (but sometimes it tries to be American but its run in a
Spanish way). This is in general over all businesses. My wife is currently
working at a call-center and have co-workers who have been in that position
for over 10 years. There are basically no way to get promoted, unless you get
lucky and someone retires or leaves. I have seen this everywhere, basically no
way to really grow, no incentives to grow, an over educated workforce, where
the cashier in the supermarket has a masters degree in childcare or similar.
There is a saying here, where they call people "mil eurista" meaning thousand
euroist more less. The amount of the working population that earn around 1000e
a month is quite high but its something thats accepted here basically. People
are not happy about it, but "At least I got a job" attitudes are everywhere.
A last thing, take care regarding any unemployment numbers that appear during
the month of May, as thats basically when the tourist season starts. That
alone probably employs over 1,000,000 workers during the summer months.
~~~
njloof
This promotion stagnation happens in the US as well, but if the market is
fluid enough you can get the promotion by changing employers now that you have
your 5+ years experience in skills and methodology.
~~~
collyw
Its crazy as it takes 3 - 6 months to get up to speed on any non complex
software system. They will save on wages but loose on productivity.
------
tluyben2
I live in Spain (am Dutch); even more; I live in Andalusia. For me that's
better, besides getting people to work. We cannot find people at all for
programming or our brewery. Everyone around us is unemployed, however they
either a) do not speak English; we speak Spanish, but a lot of our clients do
not b) do not want to work c) are foreign and have no papers to work. It's
quite horrible. And it's not for lack of trying; we have been trying for at
least 5 years. In my experience it has nothing to do with payment. This is
just limited to Andalusia ofcourse; my colleague says it's better up north,
however some people I met from other parts and who have companies complain
about the same thing.
Then another issue with the country is the extremely hard time you have in
hiring someone ; paperwork, you cannot fire them even if they are crap etc.
And the paperwork to get grants for hiring people (which are there) is
incredible. We have a company in PT as well and it's quite different there.
The gov needs to take their finger out. Luckily we have a very helpful
(Spanish) mayor who loves entrepreneurs and helps us with whatever, but he
also shakes his head when talking about hiring people locally.
~~~
Oletros
> you cannot fire them even if they are crap etc.
I highly doubt that, it has not been easier to fire someone in Spain since the
latests reforms.
Not taking into account that there is always a period were the employer and
the employee can cancel the contracts without any duty. Normally 6 months
~~~
tluyben2
When were those because I was discussing this 'recently' with my lawyer on the
coast? Yes the 6 months is true and I compare it with NL where firing is also
hard but it's very straighforward how it works. Here I haven't been able to
get it explained in that fashion. So far people look at us with pity when we
talk about hiring people legally. Note; we are a tiny company.
~~~
Oletros
Basically you can fire anyone when you want. If the cause is justified you pay
10 day for year worked, if it is not justified you pay 20
------
jlg23
What I am missing in the article and in all discussions here is: Why not pro-
actively train people? Looking 2 months for someone with some kind of
certification for "agile" is already a fourth of the time required to train
someone who is already working for the client (numbers taken from the
article).
If one is willing to pay 220k and cannot find anyone while most job offers
(according to comments here) max out at 36k, make a deal with a current
employee: "We pay for training, after 2 years you get a bonus of 72k and we
double your salary." Company does not make a loss even if the dev leaves after
2 years, it has built the experience in-house and it had 16 months to
disseminate the newly acquired knowledge to other employees.
The mindset that people must already have knowledge about some specific
technology and universities accommodating employers there is exactly why we
have so many code monkeys who don't know anything about CS finishing with a
degree in CS who, after a few years, realize that their knowledge is basically
worthless because the IT world has moved on and other languages or stacks are
now en vogue.
------
pvaldes
The "you need more skills" issue is a false problem. Is just that the bad guys
have kidnapped, blocked for years, or freeze, most of the good jobs.
This is a mediocrazy and they need to raise a lot of walls for keeping off the
brigther people who give them a bad image by comparison. And all is carefully
planned to keep this people unemployed also for the next four years.
Requisites to be a minister in Spain?. Speaking english? not necessary.
Holding any sort of degree of PhD? Not necessary. Years of experience working
for private companies?. Not necessary, but it helps. If you helped a big
company to contaminate a bay for example, you could be even be promoted as the
next environment minister.
Requisites for the rest of guys for a normal job?. A hamster wheel. Well,
first of all you need to be fluent in three or four languages, just because
maybe one time a year, or once in ten years, you could need to speak with a
foreigner; and for some reason you can't just raise a phone and hire a
professional translator for this special day. You will burn in hell if you
dare to suggest your boss this logic and simple solution. Then you need to
have a degree, a PhD, and also a few masters, and being able to hypnotize a
goat in less than five minutes, and work for free for some years, and ...
Job market in Spain is a question of kinship and means being promoted directly
in lots of cases... or never.
~~~
wallflower
> Well, first of all you need to be fluent in three or four languages
My understanding is that English to CEFRL level B1 was mandatory to work at a
multi-national company. Are there other languages required?
~~~
pvaldes
Yes, it happens. In any case 500 millions of people have spanish as native
language in the world so "mandatory" is a relative term. You will need chinese
to work in China, and spanish or portuguese to work in South-America.
If you don't speak Catalan and live in Cataluña you just will never finish the
middle school. Or if you want to work for the administration you will be
ostracised or directly banned for working for the public, just because you are
"an subhuman stubborn charnego". If you born in Euskadi and then go to
Barcelona for work, you need to be able to speak fluently four languages
(spanish, english, vasque and catalan) just to start talking about having a
job. If this guy move to Galicia later, will need to learn the Galizian
language also.
Oh, If your foreign language in the middle school was french, and a lot of
spanish people still studied french in this generation, you will not graduate
unless you speak French. If you want as adult to work for a german company you
will need a little deutsch of course to be competitive in the job interview.
But the worst stupid thing is that most of the time to be fluent or not is not
necessary at all for the job because some kind of problems can be solved in
any language and because human brain can fill the communication gaps easily.
Is just that is trendy to ask for this.
For some jobs you will need to be "fluent" also in more languages: C, Ruby,
Java, Python... Don't worry. They still will say that you are "unskilled" and
will want to pay you in peanuts.
~~~
throwaway_9191
Oh please, spare the HN crowd of your anti-Catalan obsessions. Or, on second
thought, please continue to educate the community on the anti-Catalan
sentiment that is unfortunately so common throughout Spain.
> If you don't speak Catalan and live in Cataluña you just will never finish
> the middle school.
Or you will learn Catalan which is kinda the fucking point of education? Boo-
hoo, Catalonians want kids to learn Catalan if they are going to live in
Catalonia! By the way Spanish is mandatory too, why won't you find a problem
with that?
> Or if you want to work for the administration you will be ostracised > Is
> just that is trendy to ask for this.
Try getting a job in the public administration in Spain without speaking
Spanish, in France without speaking French, in Italy without speaking Italian,
in the UK without speaking English... see the pattern? Should we give up our
right to address our public administration in our own language just to please
non-Catalan Spaniards?
> because you are "an subhuman stubborn charnego"
Your comment depicts the Catalonian society as overtly xenophobic. This is an
extremely offensive and unfair characterization of Catalonian society as
millions of native Spanish speakers living here can certify. You are either
completely misinformed about Catalonia, or spreading lies deliberately (both
being extremely common within Spain).
Fortunately support for independence is growing fast. Hopefully once we are
independent we won't have to endure this sort of bs anymore.
~~~
pvaldes
> Try getting a job in the public administration in Spain without speaking
> Spanish, in France without speaking French, in Italy without speaking
> Italian, in the UK without speaking English... see the pattern?
Yes, I see it, and is not the same as you think.
Would be, "Try getting a job in the public administration in Spain without
speaking Spanish AND catalan, in France without speaking French AND Patóis, in
Italy without speaking Italian AND Lombard, in the UK without speaking English
AND Gaelic"... see the pattern? Duplicated effort, same result.
But in Argentina the same guy could use the extra time to learn other things,
that maybe could be even useful for their employers.
~~~
throwaway_9191
Again, you mirror the Spanish public opinion very well.
The pattern is clear: you only respect state backed cultures, my culture and
language are mere nuisances that waste people's time.
That's one of the main reasons we need to break away from Spain ASAP. Before
it can complete the cultural genocide it has repeatedly attempted during the
last 3 centuries.
~~~
pvaldes
I'll hire the Argentinian. Looks like a less problematic fit.
Maybe this could be one of the problems here?.
~~~
throwaway_9191
So people who know more languages are now a problem. Please, stop it.
------
dthal
>>“It’s a paradox,” said Valentin Bote, head of research in Spain at Randstad,
a recruitment agency. “The unemployment rate is too high. Yet we’re seeing
some tension in the labor market because unemployed people don’t have the
skills employers demand.
There's no real paradox there. Employment of young people, and therefore
normal career progression for that cohort, essentially shut down for 6-8
years. Now the pipeline is a little empty.
~~~
pvaldes
This is also a big point. One of the problems with teachers and scientists for
example.
------
anjc
Same thing is happening in every country, it seems. Spanish companies have the
entire EU from which they can draw workers without any paperwork or issues,
and yet they can't find any? From central/eastern Europe even, whose workers
may have lower wage expectations?
No. They're flagging this "shortage" and will simultaneously petition their
government to allow faster issuing of/more visas to non-EU countries, i.e.
India etc, with lower wage requirements for incoming workers.
~~~
UVB-76
How many people from Eastern Europe speak Spanish?
Obviously not as important for low-skilled, manual labour, but we're talking
about highly skilled jobs in the tech sector here.
~~~
calgoo
Romania is one example, but there is a bit of a racial issue going on between
the countries.
~~~
NetStrikeForce
Yet Romanians are the second biggest minority in Spain. There are no more
problems than the disgusting and systemic racism that Spain has towards any
other country and hurt feelings on the other side.
------
winestock
Check out this little gem from the article:
“Education and work exist in two alternative worlds that don’t really
connect,” Gomez said. “While in other nations, like the U.S., college
education is designed to get you a job, that’s not the case in Spain.”
This may be a case of "the grass is always greener on the other side of the
hill."
~~~
nostrebored
Greener but not false. There is a reason why a US education is highly valued
by exceptional international students and by multinational companies.
~~~
lacion
corporate you mean, most startups and valued tech companies don't give any
credit to formal education, and the real balance is moved by experience,
seconded only by cultural fit.
------
joeyspn
It's a catch 22
1 - Spanish Universities not in tune with the market reality, pouring out
thousands of unemployed people into the market...
2 - Graduates living in a bubble... 99% not wanting to move their asses and
thinking that the academic degree is all they need. Get a crappy job or move
to another country. Let others create the jobs...
3 - Zero entrepreneurial spirit and risk aversion, making starting up a remote
to non-existing option. Blame it on the executives of your crappy company, and
obviously, the government...
4 - Gov not having a clue about scientific research, innovation and
entrepreneurship, with policies that fail to build a proper ecosystem for
startups, and also fail to connect academic and industry worlds (I.e: Silicon
Valley <-> Stanford).
5 - Back to 1
~~~
internaut
You're getting the downvote brigade but you're right. It's a many faceted
problem with plenty of blame to be shared around.
There are almost zero people at the best colleges and universities in Europe
who want to start a new company. I remember trying to convince about a dozen
people to start a bitcoin exchange several years ago when it was in the single
digits. No go. We could have fucked up almost everything and still been
millionaires. I did okay but we would have done much better working together
instead of looking for 'a good job'.
> Graduates living in a bubble... 99% not wanting to move their asses and
> thinking that the academic degree is all they need. Get a crappy job or move
> to another country.
Whole lot of that going around. They don't realize they will be living in
their city living hand to mouth for the rest of their lives. There is no big
break coming for them. The smarter ones move, but the core problem is
entrepreneurial spirit.
------
konschubert
> It takes at least eight months for an experienced software developer to earn
> an Agile qualification and they also need the ability to deal with senior
> executives,
I am a bit confused by this sentence. How does one "ear an Agile
qualification"? Why does it take eight months? What is "the ability to deal
with senior executives"?
~~~
tremon
_What is "the ability to deal with senior executives"?_
Patience and prudence.
~~~
whyaduck
Actually, I think it's the ability to translate the state of a project into
risks, rewards and trade-offs. It's not necessarily an innately understood
skill for technical individual contributors.
------
HillaryBriss
Starting about 2009, there have been a lot of discussions about whether the
unemployment in the US was "structural" or not.
Some argued that a huge number of laborers and potential employees did not
have necessary skills and therefore would be unable to find work. Period. This
was a big component of unemployment.
Others including Paul Krugman and Dean Baker argued that, because employment
was down _across most every field_ , the cause of the unemployment was
insufficient demand. They basically likened it to the Great Depression, where
highly employable people were thrown out of work despite their skill levels.
This news story makes me think that we have some combination of the two
stories going on in Spain. And maybe also the US?
Of course, how the country responds to that situation is a separate
discussion.
Maybe the government can just borrow some cash (at historically low rates)
and, instead of building another airport somewhere, educate twenty thousand IT
engineers, even paying them to go to school. Maybe government could demand
that employers train people.
Also, what's going on in the EU with the free movement of labor? Don't some IT
people want to move from Estonia and Poland down to sunny Spain?
~~~
Findeton
In Spain, we just had elections on the 26th of June, and the conservatives
won. There is money, as taxes in Spain are high on wages but low on big
companies and the government's budget is 10 points lower % than the EU
average... but we have a conservative government.
~~~
switch007
PP won the most votes but not enough to secure a majority. Rajoy is currently
in talks with other parties to form a majority, hopefully "within a month."
Technically you still have a conservative government but who knows what will
happen.
------
mtrn
A company once flew me to Madrid for an interview. Unfortunately, I cannot
understand Spanish, but the receptionist at the hotel seemed to mumble to a
friend: look they are flying people here, but our people are unemployed. It
seemed a bit crazy for me as well, since I was unsure, if my person and skills
justified _that_ kind of effort.
The interview went fine and I think I was offered something around 30k, which
was below my current wage in another (non-capital) European city, so I had to
decline, although I loved Madrid and the team seemed really nice.
------
mooreds
Wonder if it has anything to do with low salaries?
Just as an example,
[https://news.ycombinator.com/item?id=12017439](https://news.ycombinator.com/item?id=12017439)
has a pretty low salary for the skills they want.
~~~
merqurio
I don't think so.. Most of my friends left Spain looking for better long term
opportunities rather than money. Even if our economy (and politicians) sucks,
quality of life is pretty high with those salaries.
I think the problem is the polarisation in the population. Very well trained
people is leaving the country while non-skilled people remain.
Skilled people do not trust the system therefore they leave as soon as they
can.
~~~
nostrebored
Quality of life is high, but what if you have a long term goal of moving?
Making a lower wage even if proportionally you're taking home more money has a
break even point, and 35k in Spain doesn't hit it.
~~~
merqurio
Totally agree, i wasn't defending low salaries at all, just sharing my insider
experience of the reasons why people is leaving Spain.
------
mathattack
I've seen software projects where this was a big issue. Many ambitious
Spaniards wind up working in London or elsewhere. Then Spanish companies have
to hire overpriced consultancies to fill local tech positions with
underqualified resources.
I wonder how much the Brexit will send folks home.
My impression is that many companies are looking at Spain as alternatives to
London HQs, but those are also the kind of jobs for elites, rather than the 5M
unemployed. Very hard to convert housing builders into programmers.
~~~
patrickaljord
Brexit will happen in 2 years at best. Even so, the UK would still offer work
visa to skilled EU workers, there's nothing stopping them from doing that, in
fact this is what they said they were going to do. Does everyone really think
Brexit is some kind of apocalypse or something for the UK? They love money as
much as anyone else and want to remain the finance capital of Europe because
money.
~~~
NetStrikeForce
Yes, but big part of the people that voted Leave are not the people that do
business or that like money above other things.
Many Leavers I've talked to justify their decision on "border control" and
"sovereignty". They have been given the power to decide and apparently they
were "better off with a grand or two less" (sic) "than being slaved to the
Eurocrats" (sic).
The problem with visas is that if I have to go through the burden and
uncertainty of visas for me and my family, I might as well just move to Paris,
Hamburg or Munich for no visas or Australia or California for good economy and
fucking decent weather. You'll still get talent, but the shortage will still
be much worse and you'll end up lowering your requirements.
~~~
patrickaljord
EU citizens probably won't event need a visa, just a passport. Especially from
rich western EU countries, like it was already the case before Schengen.
~~~
NetStrikeForce
The UK is not in Schengen, that's a common misconception :)
One of the points of the Leave campaign, reinforced after the vote by some of
its leaders like Michael Gove, is to setup a points system for immigration. If
there was no "limit EU migration" argument, Leave would have easily lost the
vote.
~~~
patrickaljord
I know it's not, it's why my wife can't get there :) That's why I said that's
how it was even _before_ Schengen, ie French and German didn't need a visa to
go to the UK even before the EU.
------
macspoofing
This was a frustrating article to read. I got the sense the author missed
something. Spain is part of the EU common market which numbers 500 million
people - how is it that this is only a problem for Spain, and why can't they
recruit fellow EU citizens to make-up the shortfall?
~~~
cloakandswagger
This assumption is the same mistake made by almost all supranational
federalists.
Europe is composed of different countries with vastly different languages,
cultures and economic conditions. Just because they're technically "joined"
together via treaties doesn't mean labor is going to naturally distribute
throughout the union.
~~~
themartorana
And yet they thought a shared currency would be no big deal.
~~~
cloakandswagger
Don't get me started.
Economists from around the world were adamant that the Euro was a terrible
idea when it was founded. Binding dozens of wildly differing economies to one
currency controlled by one central bank has always been a pipe dream, but it
takes decades for it to start to unravel.
~~~
ZeroGravitas
The politicians knew a shared currency without sharing other aspects was a bad
idea, but they gambled that as the problems became manifest, they would be
solved by greater unity.
Maybe that was stupid, but it's a different kind of stupid than not listening
to the economists.
------
davidgerard
Pay. More. This. Is. The. Market. Speaking.
~~~
sbmassey
€200,000 in Spain seems a pretty good wage
~~~
ldng
Yeah, that's what the client is willing to pay to the consulting firm who
don't want to hire the guy at more than 24K ...
Sad truth.
------
p0nce
When you are willing to hire women, older people and provide adequate salaries
(dare I say work conditions), suddenly there isn't so much tech shortage.
~~~
ci5er
Couldn't 100% of your claim be solved with just the salary variable? What
evidence do you have that old+female+cheap people are not being considered as
part of the option matrix?
~~~
p0nce
No only anecdotal data that I hear again and again. Likewise, where is the
avidence about the tech shortage?
------
winestock
From the article:
"Pimentel’s client asked him for list of candidates trained in “Agile” project
management techniques for helping companies boost their productivity by using
more I.T. systems. The client was offering as much as 200,000 euros ($220,000)
a year -- almost 10 times the average salary in Spain."
So they're willing to pay ten times the going rate, but they're not willing to
take the time to train anyone?
But wait; there's more!
"But such people are thin on the ground in Spain. It takes at least eight
months for an experienced software developer to earn an Agile qualification
and _they also need the ability to deal with senior executives_ , limiting the
pool of people who could potentially fill the roles."
Again, note that they're willing to pay ten times the going rate, so training
them for eight months and then paying them the regular wage would pay for
itself after a few months on the job; but they still won't train. More
importantly, look at the part which I italicized. Dealing with senior
executives takes special skill? I am but a lowly suburban nerd, and the ways
of my betters intimidate me, so could someone enlighten me as to what that
journalist is talking about? I have a sneaking suspicion that Clay Shirky
knows.
[http://www.shirky.com/weblog/2013/11/healthcare-gov-and-
the-...](http://www.shirky.com/weblog/2013/11/healthcare-gov-and-the-gulf-
between-planning-and-reality/)
"Back in the mid-1990s, I did a lot of web work for traditional media. That
often meant figuring out what the client was already doing on the web, and how
it was going, so I’d find the techies in the company, and ask them what they
were doing, and how it was going. Then I’d tell management what I’d learned.
This always struck me as a waste of my time and their money; I was like an
overpaid bike messenger, moving information from one part of the firm to
another. I didn’t understand the job I was doing until one meeting at a
magazine company.
"The thing that made this meeting unusual was that one of their programmers
had been invited to attend, so management could outline their web strategy to
him. After the executives thanked me for explaining what I’d learned from log
files given me by their own employees just days before, the programmer leaned
forward and said “You know, we have all that information downstairs, but
nobody’s ever asked us for it.”
"I remember thinking “Oh, finally!” I figured the executives would be relieved
this information was in-house, delighted that their own people were on it,
maybe even mad at me for charging an exorbitant markup on local knowledge.
Then I saw the look on their faces as they considered the programmer’s offer.
The look wasn’t delight, or even relief, but contempt. The situation suddenly
came clear: I was getting paid to save management from the distasteful act of
listening to their own employees."
EDIT: formatting
~~~
shostack
It is easy to be dismissive of executives and the fact that dealing with them
takes a certain skill set.
If it is one thing I've learned as someone in a data-heavy field it is that
executives don't care about the details and nuances, and that distilling the
details of things like log files, etc. and conveying it in a way that aligns
with their pain points, strategy, etc. does in fact take great interpersonal
skills that many more technically-inclined folks unfortunately lack.
~~~
ZenoArrow
> "conveying it in a way that aligns with their pain points, strategy".
In my experience, some executives don't even care too much for facts if it
interferes with their agenda. This is usually expressed in subtle ways, but in
one instance I've heard an executive directly ask for a report that was easy
to manipulate the figures on in order to push our employees into generating
more sales.
This is part of the problem when you have directors who see themselves as
insulated from day to day challenges. I accept that there's a need for a long
term vision, but if someone isn't prepared to understand the details of what's
blocking it, they'll not be in a place to advise on how to fix it, and if
they're relying on other people to fix those organisational issues, what's the
point of having directors at all?
~~~
internaut
> This is part of the problem when you have directors who see themselves as
> insulated from day to day challenges. I accept that there's a need for a
> long term vision, but if someone isn't prepared to understand the details of
> what's blocking it, they'll not be in a place to advise on how to fix it,
> and if they're relying on other people to fix those organisational issues,
> what's the point of having directors at all?
There isn't any. Why do you think small groups of computer programmers and a
handful of venture capitalists are like a wrecking ball to so many different
industries.
In the 20th century we got used to the idea of managerial capitalism. Now in
the 21st we're seeing that unless you're an Elon Musk level manager, capable
of both understanding fine detail plus having comprehension of the big
picture, you're surplus to requirements. You'll be competing against managers
who are also geeks as well aka the real Silicon Valley advantage.
If your manager thinks 'the market should decide' they ought to step down
unless they mass produce widgets in a B2B context. Their entire job is central
coordination. In the 18th/19th centuries the manager of a factory would have
understood the functions of every bit of machinery they acquired.
------
alienjr
There was a Polish composer, writer and politician Stefan Kisielewski who used
to say: "Socialism is a system which bravely fights problems that are not
known in any other system". That describes situation of Spain perfectly.
~~~
pvaldes
Nice cliche. That describes the situation perfectly, except by the small fact
that Socialism parties do not rule in Spain since a lot of years. We have the
equivalent to the Conservative Party, that... ehem, aren't exactly
"socialists".
------
BjoernKW
Language is a large part of this problem, not willing to pay market prices is
another.
Why else would recruiters have to look for candidates in Argentina when
there's a huge amount of suitable candidates in the EU with an automatic work
permit?
~~~
vacri
Argentines speak fluent Spanish, and will be able to understand complex and
subtle business requirements presented in Spanish.
~~~
BjoernKW
Therein lies the rub. In most other countries business people who have to deal
with subtle business requirements speak English decently well where in Spanish
business it's absolutely normal for a CEO of an international company to only
speak broken English at best.
------
Oletros
I've seen offer for senior .NET developers for 20.000€/year before taxes and
going through outsourcing companies.
20.000/year is 15.000/year after taxes.
------
heisenbit
Mr. Pimentel is a Managing Partner and regional director over several
countries and as such the main job is to talk the playbook and drum up
business. Finding good people is hard and we are the right guys to talk to.
Finder fees are proportional to salary so aiming high is important. He claims
on his web page to hire country sales directors and country managers so
talking salaries of 200k+ is probably quite natural for him. Maybe he is more
thinking of a person who can turn a dead end organization into an agile one -
such a feat is hard and requires a multitude of skills. In any case it is
likely that some things were mixed up in the interview.
One thing is clear - after the property bust in Spain and Portugal a lot of
the higher skilled and mobile people were heading elsewhere. There has been a
brain drain in the region. Disproportionally high (vs. average Spanish)
salaries may be required if mobile top talent is needed. Agile project
management or product ownership for run of the mill projects aren't those. But
when talking about roles that shape organizations then things may be
different.
------
njloof
One of my first jobs (in the US) had a great strategy for getting low cost
talent:
1\. Hire cheap 2\. Train on the job 3\. Lock in your investment with a multi-
year employment contract, broken down into options to "not renew" the contract
at 6-month, then 12-month, intervals.
Worked great, they got cheap talent and a means to weed people out, and I got
valuable training I used for the next 15 years.
------
fiatjaf
> From software developers and mathematical modelers to geriatric nurses and
> care workers, a mismatch in qualifications means companies are struggling to
> fill posts, even though the unemployment rate at 20.4 percent is the second-
> highest in Europe.
This is the result of years of malinvestiment in human capital. The Austrian
Theory of Business Cycles explain.
------
smsm42
So, if they don't have enough qualified workers, why don't they start creating
on-the-job training programs? I understand there's risk in such investment
(i.e., you train a person and then they leave for a higher salary) but there
are many ways to counter it. Is there something like that happening in Spain?
If not, why?
------
rcarmo
I've been pinged by recruiters for positions in Spain pretty much every week,
either multinationals who need to grow their presence or local corps looking
for experts. Cost of living is about the same as here in Portugal, but my
previous experience with local execs makes me leery of those opportunities.
------
SixSigma
The agriculture sector employs many North African illegal immigrants.
Visit the greenhouses of Almeria and see what happens when you take your
camera from its bag.
~~~
patrickaljord
The do so because local people don't want to do these jobs.
~~~
SixSigma
If people don't want to do a job, it is because it is not suitably
remunerated.
Using illegal labour instead should not be defended. It undercuts the position
of the legal workers.
~~~
patrickaljord
Paying people more for these jobs would make the end product way more
expensive and make it hard to compete on the global market and make your
country not competitive (what's happening here in France). Another side effect
is that because the price of the end product gets more expensive, people will
have to work more in order to buy said products or just avoid buying them.
~~~
SixSigma
The EU restricts agricultural imports, fixes prices and pays out massive
subsidy for non-production via the CAP.
Perhaps market manipulation by the EU should be reassessed if the consequence
is widespread and necessary use of illegal labour by some of the richest
farmers in Europe.
[http://www.europarl.europa.eu/atyourservice/en/displayFtu.ht...](http://www.europarl.europa.eu/atyourservice/en/displayFtu.html?ftuId=FTU_5.2.1.html)
Objectives
Article 39 TFEU sets out the specific objectives of the CAP:
1 to increase agricultural productivity by promoting technical progress and
ensuring the optimum use of the factors of production, in particular labour;
2 to ensure a fair standard of living for farmers;
3 to stabilise markets;
4 to ensure the availability of supplies;
5 to ensure reasonable prices for consumers.
~~~
patrickaljord
I totally agree that we should get rid of the CAP. Not going to argue on this
one.
------
vonnik
The skills gap is very real in America, too. It can be hard to find the people
you need. And many of the folks who are out of work don't fit the bill. There
are specific training programs, sponsored by large companies, that are trying
to give post-high-school trainees the right vocational skills... (Can't
remember the names atm!)
------
reledi
There's a lot of talented Spaniards out there. I know because I can proudly
say many of them are my teammates.
Did I mention we are hiring? Clojure, Ruby, Data.
[https://www.fundingcircle.com/uk/careers/](https://www.fundingcircle.com/uk/careers/)
------
Animats
That's what the US has done. There are lots of available workers in the US
with non-salable skills.
------
forthefuture
It looks like Spain has almost reached the US' rate of economic non-
participation.
[http://www.ine.es/en/prensa/epa_prensa_en.htm](http://www.ine.es/en/prensa/epa_prensa_en.htm)
------
known
[https://en.wikipedia.org/wiki/Wage_slavery](https://en.wikipedia.org/wiki/Wage_slavery)
------
fiatjaf
At the same time, I bet there are a lot of Spaniards getting majors on
philosophy and other weed-smoking specialties.
------
ssjohal
So EU was merely a clever plan by stronger economies to suck brains out of
struggling economies?
~~~
fwn
I guess a good rule of thumb is: If you can pack what you think is the
motivation for such a big and time intensive project as the EU into one tweet,
it's probably far from the truth.
------
SFJulie
It means the expectation of the demand (companies) are not matching what the
market provides.
Having to look for a job in Europa, I dare say most job offers are laughable.
C#, PHP and java are MODERN technologies that no one should be scared of.
Windev is a very good tool.
Mysql and mssql are the only two worthy databases.
Free software is a free as a bier.
AGILE is SOOO complex...it has to be officiated religiously like ITIL or ISO
norms.
They want software devs on the market already proefficient in
proprietary/tricky technologies, and no one understand why jobless persons
with so much time cannot buy these 10K€ tools and use their worthless time in
self formation.
And salary expectation are low : a coder MUST not be paid more than any
manager. Even the manager responsible for the cleaning team of 500m² office
with a headcount of 2.
They just have irrealistic expectations. That's all folks.
------
mikerichards
So Spain isn't Germany, but I'm curious why even in the midwest (St. Louis no
less), senior developers easily command $120k+.
But I guess this also goes to the point why SV is only playing "normal" senior
developers $150k/yr?
Unless you're really digging the Bay Area lifestyle (or "I'll get my chance in
the next cool startup), why even bother.
------
internaut
Europe in general, with some rare exceptions, does not value the kinds of
skills that are selected for in SV.
The culture is bad. The incentives are all wrong. Pay peanuts, get monkeys.
The typical business person in Europe considers him or herself top of the
pecking order. This only looks to be true relatively because they hire less
capable workers. These are the exact kind of people who imagine hiring twice
as many developers gets the job accomplished faster i.e. simpletons.
The typical software engineer is at least one standard deviation above them.
Just not in one specific area. In everything. I have friends who did part-time
degrees in literature or language studies while they were also studying for
computer science at some of the most elite european universities. Most geeks
are systems thinkers and have no trouble in grokking areas outside of their
main thing. Many of us refuse to be put into a box.
Having interests in exclusively one thing is a pretty fair indicator of not
being very adaptive, I'd say it's almost defintional. That is the kind of
person they want to hire. You can hire them, but they won't be very good.
Then you get these idiots who think they can run circles around us because
they have the phone number of a venture capitalist or bank manager. Get a grip
boys, your money doesn't count for much when a software engineer can be ramen
profitable so easily. I have all manner of skills I don't bother to put on the
market because the rates of pay are so pitiful and I can obtain better results
by doing my own thing. Lots of other people just physically move. This is then
misread by the business community as 'not enough skills'.
The other thing is that most projects they offer are really boring grunt work
where you learn nothing by doing them. If there was an actual project we found
cool or innovative we'd probably work for lower base salary plus some equity,
but that's not the kind of work we get here in Europe, those kinds of benefits
are reserved for Clod-Class. A good many programmers would prefer to work 20
hrs a week as janitors and then work on interesting projects rather than put
up with this bullshit plus work 60-70 hour weeks. How many European
programmers are told they'll be paid 20-30 euro per hour but actually are
required to work three or four hours a day for free? Apparently they like to
think we can't do arithmetic but can order a machine to do floating point
operations just fine.
Diagnosis: Failure to Coordinate. Failure of Imagination.
| {
"pile_set_name": "HackerNews"
} |
Ask HN: Best Object-Oriented Programming Book - Kinnard
What's the best book for getting a handle on object-oriented programming? I'm an experienced web dev but new to OO.
======
rahimnathwani
I was looking for a similar thing a while back. I don't remember why, but I
decided on Practical Object-Oriented Design in Ruby:
[http://www.poodr.com/](http://www.poodr.com/)
Although it uses Ruby as the instructional language, you don't need to know
much Ruby syntax to be able to understand the examples.
------
vram22
The Object Primer by Scott Ambler (IIRC). Read years ago but got some insights
from it.
[https://en.m.wikipedia.org/wiki/Scott_Ambler](https://en.m.wikipedia.org/wiki/Scott_Ambler)
[http://www.ambysoft.com/books/theObjectPrimer.html](http://www.ambysoft.com/books/theObjectPrimer.html)
Note that is the 3rd edition. I had read an earlier edition. He lists the
differences between 2nd and 3rd.
------
stevenspasbo
Check out the Head First: Object-Oriented Analysis and Design. It's pretty
basic, but would be a good intro if you're brand new to OO.
~~~
romanhn
Seconded. It's a great introduction to OOP written in a very approachable
manner.
------
ruraljuror
I am relatively new to this myself, but at my work there is a lot of
discussion of the SOLID principles:
[http://butunclebob.com/ArticleS.UncleBob.PrinciplesOfOod](http://butunclebob.com/ArticleS.UncleBob.PrinciplesOfOod)
------
paulroest
I would highly recommend Eric Evans' Domain Driven Design as the second Object
Oriented book to be read. Most any primer on OO will give you the foundation
of ideas but Erick's book makes the knowledge useful and has been repeatedly
called OO done right.
ISBN-13: 978-0321125217 ISBN-10: 0321125215
| {
"pile_set_name": "HackerNews"
} |
Ted Ts'o: For those who believe systemd developers are reasonable - dredmorbius
https://plus.google.com/117091380454742934025/posts/K7ijdmxJ8PF
======
dredmorbius
Linus Torvald's commnt provides some additional context (on the link above):
_I think what you (and others) seem to miss is that the systemd people made
the "debug" option that we introduced not just do something - but do something
useless that actively broke other peoples use of that option._
_It doesn 't matter who "owns" it, the fact is, they broke it._
_Ok, fine. Bugs happen, and that 's not what makes people upset._
_What makes me (and others) upset is that when the bug is reported, with
explanations and a suggestion for how to fix it, Kay just closed the bug-
report, claiming it wasn 't a bug._
_Seriously? You want to debug kernel stuff, using the kernel command line
command "debug" that makes the kernel more verbose, and now the systemd people
say "sorry, we stole your thing and made it useless, and it's not a bug
because you didn't call shot-gun"._
_Now, if this was an isolated incident, I personally would let it go. There
are bad engineers out there, it 's not worth worrying about. Ignore them and
move on._
_But this is not an isolated incident. This is how Kay has treated other bugs
in the past. Literally months of stalling, closing bug-reports, and blaming
other people and projects for problems that he caused, telling others how they
should change their projects because he broke something, and obviously it can
't be his fault._
_And that is a problem._
I'll openly admit I'm not a systemd fan. I've seen too much brokenness from
the developers involved, in this and other projects. I've seen far too much
arrogance. I see too much complexity. I'm quite disappointed in both the
Debian vote and Ubuntu's decision to go along with it (I was really hoping
that Shuttleworth would hold out as loyal opposition). Yes, systemd does
provide _some_ useful features, but at an extremely high cost in complexity
and unproven changes to a system at the core of every last Linux system.
Emphasis on "Linux", as it's also not cross-compatible with other OSes on
which many Linux programs will run, and on which some distros (such as Debian)
provide builds.
~~~
coldpie
I'm still mixed on systemd. My favored distro, Arch, switched to systemd well
over a year ago, and is currently the only supported init system. It works
fine for me, but I don't do a lot of complex sysadmin tasks. To be honest, I
haven't even learned the unit file syntax yet.
I do find Lennart's software to have godawful UIs and APIs. I dare you to
write a simple audio output program using the PulseAudio API. Let me know when
you've got the threading, mainloop, and callback APIs figured out so you can
write your sine wave...
The command to interact with systemd is not 'systemd', but instead 'systemctl'
(which is not 'sysctl'!). Systemd has units and targets which can be enabled
and started and disabled and stopped (what's the difference again? off to the
man pages...). systemd is trying to replace /var/log and cron as well, but
damned if I can remember the right four switches to journalctl to make it do
something useful.
On the other hand, systemd feels cleaner at a conceptual level to me.
Apparently more competent sysadmins find the new journalctl idea to be super
useful--it provides a consistent window into log files, so you don't have to
remember varying paths and log file formats and such. Service unit files allow
for complex dependency resolution for service startup, far more powerful than
the old symlinks-in-etc or rc.conf files allowed.
It feels like the right solution to me. I just wish it was more intuitive to
use.
~~~
loudmax
I've found systemd to be fast and stable on Arch. There's a learning curve
associated with a new way of doing old things. That doesn't bother me that
much because this is how progress happens.
What I find far more disconcerting is that systemd seems to eschew core Unix
philosophy
([http://www.faqs.org/docs/artu/ch01s06.html](http://www.faqs.org/docs/artu/ch01s06.html)):
_This is the Unix philosophy: Write programs that do one thing and do it
well. Write programs to work together. Write programs to handle text streams,
because that is a universal interface._
Systemd does none of these. Well, maybe it works with other programs... it
really feels like it's own world.
~~~
hga
That philosophy, which has many merits, was nonetheless a virtue forced by
necessity. UNIX(TM) is Multics with, as the name implies, various important
features ... omitted in squeezing down a big system, for a multiple 32 bit CPU
mainframe architecture, to minicomputers. The first PDP-11 they used, which
was not the first PDP model used, was the original, later named the PDP-11/20,
which had 56KiB maximum of memory (above was reserved for memory mapped
devices, an innovation of the architecture).
The 2nd, where they really got going, was the PDP-11/45, which allowed any one
program 64 KiB of code and the same of data, but due to its paging
architecture the data was divided into 8 KiB of stack and 56 KiB for normal
user data.
So now that we use computers with as much or more L1 and L2 cache, we can, if
warranted, ignore that philosophy. Don't know if that's the case here, the
gravamen is that systemd's development team is grossly irresponsible. Which
could be reflected in its architecture, but even if it was more in the
traditional UNIX(TM) philosophy, their being that way would be as bad.
I just hope the next version of Debian is not a disaster, would not like
moving off of it, not that I'm entirely satisfied with it.
~~~
killnine
So wait, some geniuses came along and banged out the OS of the future, in the
smallest purest form they could, and now decades later, just because our
computers have improved, you think it logical to ditch the philosophy that got
us here???
~~~
peawee
More like "some geniuses came along and banged out an OS that would suit their
needs on the limited hardware they had on hand"
~~~
felixgallo
The philosophy applies no matter how much hardware you have.
~~~
hga
Not going to directly reply to the reading comprehension impaired, but my
point is that part of the philosophy _was required_.
To print technical papers to a phototypesetter, one of the first use cases for
which the UNIX project got serious funding, required a pipeline so that, as I
remember, tables, equations and basic formatting were all separate programs
piping their output to the next, with troff at the end (as I recall, I only
used nroff in one step to a Xerox daisy wheel printer for one paper before I
moved to Scribe and then TeX to a laser printer). No one single program doing
all that could fit into the 11/45's split I&D address space as described
above.
Now we can and have made individual programs bigger, but the philosophies of
doing a limited number of things well and communicating by plain text are
still very solid for many applications (but, not, say, many of the use cases
of Photoshop/GIMP etc. Or a browser. Or (in)famously, the linux kernel
itself).
How much they should apply to system initialization and daemon management etc.
I just don't know, haven't examined the issue. Not entirely, I would hazard a
guess, certainly nothing I can think of that looks like the chain ending in
troff. That the creators of systemd are reported to have ignored this
philosophy does not automatically make it bad.
Their reported consistent bad behavior (from people I know and trust, at least
in the case of Ted Ts'o) would seem to make it automatically problematical.
That Linus felt compelled to revoke this person's kernel commit privileges
([https://news.ycombinator.com/item?id=7522791](https://news.ycombinator.com/item?id=7522791))
is also telling.
Or let's put it this way: a program like systemd must, by definition, "play
well with others", _that 's its job_ after all. That main developers can't do
that in the real world is a very bad sign.
------
devnonymous
Just a small note, this story was posted earlier today (
[https://news.ycombinator.com/item?id=7521153](https://news.ycombinator.com/item?id=7521153)
). For people looking for a tl;dr:
a. systemd hijacks the usage of the 'debug' parameter on the kernel command-
line for it's own purposes. In some cases this renders the system un-bootable.
Since kernel devs can no longer use a parameter that has literally been around
for _years_ and was introduced with the explicit intention to help debug the
kernel, this is reported as a bug against systemd.
b. The maintainer of systemd closes the bug as NotABug and refuses to fix it
c. A patch is posted on the lkml that simply 'hides' the debug flag from
userspace in retaliation.
d. The patch is accept and Linus expresses his anger at what he thinks is a
repeating pattern of behavior (to cause regressions, break userspace and
refuse to fix the cause of the breakage forcing kernel devs to work around the
matter). He also decides to ban systemd maintainer from committing to the
kernel
hth,
------
profquail
I'm not a heavy Linux user -- I mainly use Windows and FreeBSD -- but I'm
curious to know why none of the Linux distros have looked at using launchd?
It's being ported to FreeBSD
([https://github.com/rtyler/openlaunchd);](https://github.com/rtyler/openlaunchd\);)
is there some reason it _couldn 't_ work with Linux, or is it just being
overlooked/ignored?
I have heard that launchd doesn't have all of the features systemd does, but
launchd does seem to be fairly solid for the features it does support.
------
rcxdude
[http://lists.freedesktop.org/archives/systemd-
devel/2014-Apr...](http://lists.freedesktop.org/archives/systemd-
devel/2014-April/018390.html)
Can't say I'm terribly impressed by the communication on either side currently
(apart from the above email).
------
yoha
Google Cache of the linked article:
[http://webcache.googleusercontent.com/search?output=search&s...](http://webcache.googleusercontent.com/search?output=search&sclient=psy-
ab&q=cache:I4weZxyAFqUJ:http://lkml.org/lkml/2014/4/2/415%2Bhttps://lkml.org/lkml/2014/4/2/415&gbv=1&sei=SmA9U7n7E6nT0QWN5oFw&hl=en&ct=clnk)
------
dman
Can someone please copy / paste the post here - sadly google plus is blocked
for me.
~~~
loudmax
This is the entirety of Ted Ts'o's post.
_For those who believe the systemd developers are reasonable and will listen
to constructive criticism....._
[https://lkml.org/lkml/2014/4/2/415](https://lkml.org/lkml/2014/4/2/415)
There are dozens of comments on the G+ page.
At the moment, I can't even pull up [http://lkml.org/](http://lkml.org/) Not
sure if that's an outage or just me.
~~~
Daviey
[http://www.gossamer-
threads.com/lists/engine?do=post_view_fl...](http://www.gossamer-
threads.com/lists/engine?do=post_view_flat;post=1897161;;list=linux)
------
adobriyan
I didn't know about "debug" until this post because I used "ignore_loglevel"
for years.
Kernel is fun.
| {
"pile_set_name": "HackerNews"
} |
What is signals buissness model - egodestroyer
Signal is run by the signal foundation. But what are the financial incentives behind all of this?<p>I want to create an open source, rake free poker client myself, and I dont know how to finance it, i also want to get rich in the process ;) (just being honest)
======
notkaiho
Signal's initial funding were $50 million from one of the founders, and
"Between 2013 and 2016, the project received grants from the Knight
Foundation, the Shuttleworth Foundation, and the Open Technology Fund."[0]
They are not in the game to make money. As long as they can cover costs, and
given they are tax-exempt as a non-profit they can't 'get rich' off of it, the
work can continue.
[0]
[https://en.wikipedia.org/wiki/Signal_(software)#Developers_a...](https://en.wikipedia.org/wiki/Signal_\(software\)#Developers_and_funding)
| {
"pile_set_name": "HackerNews"
} |
The Quadshot: combining a quadcopter and a plane in one - jgrahamc
http://thequadshot.com/
======
unwind
If you were confused by the logo's use of a coffee cop in the initial 'Q',
that's a reference to espresso (each individual espresso is called "a shot").
A drink with four espressos would be considered very strong indeed, and
probably make you go fast.
------
esden
Thank you very much for featuring a link to our website here. Calculating the
time of the post you probably missed the newest video of a prototype gimbal
mount for the Quadshot. You can see it here:
<http://www.youtube.com/watch?v=bd1js8WIL7E> So Quadshot is not only a mix of
a quadrocopter and a plane but also an aerobatic aircraft that can be stable
enough to shoot areal footage.
| {
"pile_set_name": "HackerNews"
} |
Killing a process and all of its descendants - shiroyasha23
http://morningcoffee.io/killing-a-process-and-all-of-its-descendants.html
======
rlpb
This is why cgroups were invented. They solve this problem. Start a process in
its own cgroup, and you can later confidently kill the process and all of its
descendants. Container "technologies" use cgroups extensively, as does systemd
service management.
~~~
menage
[CGroups original developer]
Yes, for tracking processes and reliable resource control. Prior to cgroups,
in Google's Borg cluster management daemon the best strategy I was able to
come up with for reliably and efficiently tracking all the processes in a job
was:
\- assign each job a supplementary group id from a range reserved for Borg,
and tag any processes that were forked into that job with that group id
\- use a kernel netlink connector socket to follow PROC_EVENT_FORK events to
find new processes/threads, and assign them to a job based on the parent
process; if the parent process wasn't found for some reason then query the
process' groups in /proc to find the Borg-added group id to determine which
job it's a part of.
\- if the state gets out of sync (due to a netlink queue overflow, or a daemon
restart) do a full scan of /proc (generally avoided since the overhead for
continually scanning /proc got really high on a busy machine).
That way we always have the full list of pids for a given group. To kill a
job, nuke all the known processes and mark the group id as invalid, so any
racy forks will cause the new processes to show up with a stale Borg group id,
which will cause them to be killed immediately.
This approach might would have had trouble keeping up with a really energetic
fork bomb, but fortunately Borg didn't generally have to deal with actively
malicious jobs, just greedy/misconfigured ones.
Once we'd developed cgroups this got a lot simpler.
~~~
the8472
Was giving each job its own UID not an option? users are the original
privilege separation after all and kill -1 respects that.
~~~
menage
No, because multiple jobs being run by the same end-user could share data
files on the machine, in which case they needed to share the same uid. (Or
alternatively we could have used the extra-gid trick to give shared group
access to files, but that would have involved more on-disk state and hence be
harder to change, versus the job tracking which was more ephemeral.) It's been
a while now, but I have a hazy memory that in the case where a job was the
only one with that uid running on a particular machine, we could make use of
that and avoid needing to check the extra groups.
------
pixelbeat__
The GNU coreutils timeout command encapsulates a lot of these issues. It's
surprisingly difficult to handle all the edge cases and races.
[https://www.maizure.org/projects/decoded-gnu-
coreutils/timeo...](https://www.maizure.org/projects/decoded-gnu-
coreutils/timeout.html)
~~~
castratikron
Cool. Anyone know how they make diagrams like those?
~~~
kevinoid
I was curious as well. According to the author, "All the diagrams were hand-
crafted in PowerPoint."
[https://github.com/MaiZure/coreutils-8.3/issues/1#issuecomme...](https://github.com/MaiZure/coreutils-8.3/issues/1#issuecomment-455773553)
------
srathi
Sometimes I wonder if I'm on a list somewhere for frequent Google searches
such as this one - "How to kill a parent with all the children"!
~~~
stephen82
Personally I use `killall` command and works as expected, at least on Debian.
For instance, when I want to stop conky, all I do is run `killall conky` and
kills all of its processes at once.
Another longer way to do such thing is to run `kill -9 $(pidof conky)` which
kills all returned processes.
~~~
Dylan16807
Just be careful around Solaris!
------
jchw
Bazel-watcher tries to accomplish this on Linux by using process group IDs. It
works, if imperfectly sometimes. I ported this to Windows[1] using Job
Objects. As usual, the Windows API was hell, and I made use of undocumented
syscalls in order to make it work (though that part is partly Go’s fault: when
you start a process, it immediately drops the thread handle on the floor. If
you start a process suspended, that means it’s impossible to resume _using
documented APIs._ )
Thankfully Raymond Chen wrote an article[2] about Job Objects which helped me
figure out the last bits. I genuinely am not sure I could have gotten it right
without that article. There’s so many subtle ways to fail!
[1] [https://github.com/bazelbuild/bazel-
watcher/pull/144/files](https://github.com/bazelbuild/bazel-
watcher/pull/144/files)
[2]
[https://devblogs.microsoft.com/oldnewthing/20130405-00/?p=47...](https://devblogs.microsoft.com/oldnewthing/20130405-00/?p=4743)
~~~
neerajsi
I'm confused by this post, but I'm an ex-dev on the NT kernel.
ResumeThread is a well documented API. As is TerminateJobObject. The one thing
I find a bit baroque is the recently added way to make sure a process is in a
job on creation, which I believe is part is the ProcThreadAttributes
mechanism.
~~~
jchw
Yes, ResumeThread is. NtResumeProcess is what I had to use, because Go
immediately closes the thread handle.
I’m sure it’s safe to rely on NtResumeProcess. I have used it since XP without
issue. But I definitely wish there was a better way to go back from a process
to a thread. The best I could find is using Toolhelp32 to iterate all the
threads on the system, which I believe is just wrapping
NtQuerySystemInformation. Would’ve worked but definitely wasn’t fast.
------
eikenberry
On Linux you can also use prctl with PR_SET_PDEATHSIG to set a signal that
will be sent to all child processes when the parent dies. This is a syscall
you'd need to make from in the program. See 'man 2 prctl'.
------
PopeDotNinja
One low hanging fruit I've thrown into my ssh-ing aliases/functions is is just
throwing 'timeout' on the front. I usually exit cleanly and/or don't spin up
zombie-prone processes, but sometimes I do dumb things, so to exit after a
day...
timeout 86400 ssh me@example.com
I was reading the man page for timeout, and it looks like you can throw some
kill options, but I never needed them, so I never looked for them.
------
adrianmonk
Really nice writing style on this article.
It covers everything that needs to be covered, but it also gets right to the
point. Yet without being overly terse or dry.
And it explains everything clearly. So often the writer is good at
understanding an idea but not conveying it. This lays it out where it's easy
to pick up.
------
k_sze
Can somebody re-explain the last part about nohup propagation to descendant
processes?
I don’t quite get what the implications are. The author also doesn’t seem to
talk about their solution for it in the context.
------
nanaya
>but on BSD and its variants like MacOS, the session ID isn’t present or
always zero
Don't know about macOS, but session ID/pointer does present on FreeBSD and
OpenBSD.
------
psef
Related post with interesting comments:
UNIX one-liner to kill a hanging Firefox process:
[https://jugad2.blogspot.com/2008/09/unix-one-liner-to-
kill-h...](https://jugad2.blogspot.com/2008/09/unix-one-liner-to-kill-hanging-
firefox.html?m=1)
------
bandrami
Isn't this exactly why you can freeze cgroups?
------
mehrdadn
Even _waiting for a process to exit_ is surprisingly hard (impossible?) in
Linux, unless it's your child.
~~~
AnssiH
That is getting considerably easier with the addition of pidfds, though:
[https://lwn.net/SubscriberLink/794707/93ffb35438fd3710/](https://lwn.net/SubscriberLink/794707/93ffb35438fd3710/)
~~~
twic
> Beyond the ability to unambiguously specify which process should be waited
> for, this change will eventually enable another interesting feature: it will
> make it possible to wait for a process that is not a child — something that
> waitid() cannot do now. Since a pidfd is a file descriptor, it can be passed
> to another process via an SCM_RIGHTS datagram in the usual manner. The
> recipient of a pidfd will, once this functionality is completed, be able to
> use it in most of the ways that the parent can to operate on (or wait for)
> the associated process.
So, to wait for a process that is not your child, do you have to get the
relevant pidfd from its parent? In which case, this doesn't help all that
much. Or is there some other way to get pidfds for arbitrary processes?
~~~
mehrdadn
Perhaps pidfd_open(pid, ...)?
[https://lwn.net/Articles/789023/](https://lwn.net/Articles/789023/)
I find it bizarre they called it "pidfd_" rather than just "process_" or
"proc_"... almost seems like they deliberately avoided the obvious?
~~~
cyphar
It's because the object you get is a file descriptor.
In fact it's exactly equivalent to getting a file descriptor for /proc/$pid --
Christian (the person who developed the patchsets) quite cleverly solidified a
trick that some folks knew about for several years (that you could use
/proc/$pid as a race-free way of checking if a process has died if you grabbed
a handle while it was still alive). Before pidfd_send_signal(2) there wasn't a
way to use that "interface" nicely. But now it's a first-class citizen (and
Christian had to fight a lot of battles to get this in over several releases).
It's really cool work and I have high hopes it will be used far and wide
because it solves so many individual problems in one fell swoop.
~~~
mehrdadn
> It's because the object you get is a file descriptor.
It is, but you're opening the object, not the descriptor (which doesn't even
exist yet). When you open a kernel object, you always get back a (new) file
descriptor representing that object. It's against previous naming conventions
too. It's not like mkfifo() was called mkfifofd() or socket() was called
socketfd() or perf_event_open() was called perf_event_fd_open()...
I'm really amused that you're so excited about it and find it so cool. I mean,
I'm not suggesting it isn't awesome that they added it, but to me, it's such a
glaring obvious deficiency that I'm completely flabbergasting that a lot of
battles had to be fought to include it. It should've been added and embraced
with open arms over two decades ago...
~~~
cyphar
> It is, but you're opening the object, not the descriptor (which doesn't even
> exist yet).
pidfd_open(2) is still a proposed interface, and isn't in mainline yet (and if
I'm remembering the ML discussions correctly, it might not even go in any time
soon). The currently-available interfaces are pidfd_send_signal(2),
CLONE_PIDFD, and the new pidfd_poll(2) support for pidfds. In that context,
calling it "pidfd_" makes more sense (since you're operating on existing
handles) and thus pidfd_open(2) also makes sense because otherwise the naming
would be needlessly inconsistent.
There are also several pre-existing APIs that are called process_ (such as
process_vm_{read,write}v(2)) which use pids and not pidfds -- so calling the
new APIs process_ (or even proc_) could lead to confusion. From memory the
first couple of iterations of the patchset changed the name several times
until we landed on pidfd_ and nobody really complained much afterwards.
Also (and now I'm just nitpicking), mkfifo(3) doesn't give you an fd -- it's
just a wrapper around mknod(2). But I do get your point.
> I'm really amused that you're so excited about it and find it so cool.
I might be a little bit more biased towards thinking it's cool, since the
developer is a good friend of mine and we went back and forth on the design
quite a lot (the fact he managed to get /proc/$pid fds to have these features
is pretty remarkable and it's unbelievably cool that it didn't require having
multiple classes of fds -- if you'd have asked me a year ago I would've said
it'd be very hard to get right and would never be merged because it'd be so
invasive). But thinking that it's neat isn't mutually exclusive with thinking
that (something like) it should've been implemented a long time ago.
------
wilsocr88
Off topic, but this headline makes me think "...unto the tenth generation upon
the Earth..."
------
sabujp
advanced programming in the unix environment is an excellent book that dives
more into this
------
sadris
I just use rkill
| {
"pile_set_name": "HackerNews"
} |
Ballmer sells Windows 1.0 - g0atbutt
http://codesketch.com/2010/11/25-years-ago-this-was-the-future-of-computing/
======
jimminy
"Except in Nebraska!" Does anyone have a reason why Nebraska would be singled
out?
~~~
beej71
[http://tvtropes.org/pmwiki/pmwiki.php/Main/OfferVoidInNebras...](http://tvtropes.org/pmwiki/pmwiki.php/Main/OfferVoidInNebraska)
------
chamakits
It makes me sad that those features seemed advanced, when something as complex
as the Sketchpad had been created a good amount of time before. (more here:
<http://en.wikipedia.org/wiki/Sketchpad>)
(Note: Its not completely related, but its just that the Sketchpad seemed to
me much more advanced than what had Stevy here so excited)
~~~
jonhendry
Hell, NeXT was founded 25 years ago.
------
itblarg
Hilarious. Is this real?
~~~
rpeden
I can't find a source at the moment, but I remember reading more about this a
few years back. IIRC it was made as a joke for an internal company conference,
or something along those lines.
------
antipaganda
wait... I had that clock on my Amiga 500! And Reversi! And notepad! ...or
something like it. So what gives?
------
jared314
Reminds me of the old SNL Bassomatic skit.
------
danilocampos
Good old Microsoft — selling features instead of benefits. Some things never
change.
It's a shock that the same company who brought us Windows could also make the
Xbox. Without J. Allard, I worry about its future.
| {
"pile_set_name": "HackerNews"
} |
Ask HN: How did you solve the "developing on multiple machines" problem? - Eduard
I have several computers (a desktop computer, a laptop, etc.). I'm developing with Eclipse, using a bunch of plug-ins.<p>It's a time-waster to synchronize my development environment between all my machines.
Usually, I develop on my desktop computer. Whenever I'm "on the road", I first have to configure my laptop Eclipse setup - reflecting the current setup of my desktop computer (including custom views, custom hotkeys, esoteric plug-ins etc.).<p>What is your solution to the "personal (integrated) development environment on multiple machines" problem? Which related problems are you facing?
======
dwc
I use Vim. Most of the fancy IDE features are one of a) already there if you
know where to look, b) available in one or more plugins, or c) not actually as
useful as you've been lead to believe. Seriously. My setup is something you
can put on a thumb drive, or better yet put it in source control and sync
whenever you like. Much or all of this applies to Emacs.
I realize that some people will never be happy with Vim or Emacs and really
want a big GUI IDE. That's ok, too.
------
dlikhten
Well, Eclipse, unlike intellij, has a special workspace directory, you can
sync that baby up using dropbox/aerofs.
I use intellij/rubymine (jetbrains) and the advantage is that I pretty much
check in my configurations along with my repo. Good stuff.
~~~
Eduard
Eclipse plug-ins are usually located in the plugins folder of the Eclipse
installation. Do you mean there is a "special workspace directory" that could
contain all sorts of plugins?
| {
"pile_set_name": "HackerNews"
} |
What’s New with “The Rust Programming Language”? - doppp
http://words.steveklabnik.com/whats-new-with-the-rust-programming-language
======
EduardoBautista
I really like Rust. As someone who never had a formal computer science
education, the early version of this book helped me understand how programs
handled memory in a way that no other resource has been able to.
I started looking at my Ruby programs and would focus on trying to reduce the
amount of memory allocations in order to improve performance, and it worked.
Even though I don't think I am going to use Rust in a production environment
soon, it taught me to think about my code in a new way. It definitely is a
language that everyone should take the time to learn.
~~~
steveklabnik
I am really glad to hear it. One of the reasons I had made the Ruby -> Rust
jump fairly easily was that I'd been programming in C for most of my life, and
got a BS in CS. But I also know that a _ton_ of people have not. So it's
really really important to both me and the Rust team broadly that we make Rust
accessible to this crowd.
(I also agree with you with going back to Ruby; I look at my code now and go
"oh no so many allocations" "oh no is this threadsafe I have no idea" :) I
will still always love Ruby though. )
------
ardit33
I have a serious question: Is anybody using Rust in production? I mean, I have
seen so many countless blogs about it, but I have yet to hear it being used
seriously.
At this point it looks like it is just a lot noise/marketing but no real large
scale deployments yet and why is this?
~~~
pornel
FWIW, I'm using it for
[https://imageoptim.com/api](https://imageoptim.com/api) — it's an image
compression API. Rust is at its very core (with high-level fluff in NodeJS).
It's not large scale yet, but that's only because I'm just starting.
Rust is working great. It's stable and reliable. I don't love Cargo, but it's
still _sooo_ much better than autotools.
I've got efficiency I need for pixel-pushing, and I'm not worried that an off-
by-one error will get my servers owned.
~~~
namelezz
Why don't you like Cargo? Do you use pure Rust or have FFIs to C libs?
------
jat850
Steve,
TRPL has proven a fantastic resource for learning Rust. I'm wondering if you
have a plan for how it will track the advancement of the Rust language itself
- do you intend to maintain a version of the book for major point releases of
Rust, minor point releases, etc?
I wish I could cite some specific examples but I didn't keep notes, but I
think I've come across a a few instances where, say, something behaved
differently in Rust 1.10 versus Rust 1.12. Will the book attempt to tackle
this?
~~~
steveklabnik
This is a great question, with a lot of details. So, let's start from the
beginning.
In a sense, there _is_ a version for each version of the language:
* https://doc.rust-lang.org/1.8.0/book/
* https://doc.rust-lang.org/1.9.0/book/
* https://doc.rust-lang.org/1.10.0/book/
etc. Since the current book is stored in-tree, this is just part of the
regular release cycle. That said, I haven't been working on the book because
I've been working on the new book, so it's largely the same, just with some
typos.
The second bit is, thanks to the stability guarantees, these days, the book
doesn't really go out of date. Everything works. That said, there are
sometimes new features added that it doesn't always cover; this is really
tricky in general. There's an overall tension here, since it's an official
project: I feel the need to be comprehensive, yet a good text is often defined
just as much by what you leave out as what you put in. So the book tries to be
_mostly_ comprehensive, but not totally so. So it's okay if new features
aren't immediately in the book.
This also ties into Rust itself, and something the team has been thinking a
lot about. With most languages, you have major releases in order to sort of
chronicle the language through history: new idioms, new features, etc. With
our release schedule, and no plans to make a "2.0, major breaking changes
everything is different" release, we don't have that normal point to tell the
story of how Rust is changing. So I can imagine that major updates to the book
will happen along these same "epochs", as Rust changes over time. We're still
trying to figure that all out, though. But the key is that many Rust releases
aren't game-changing: only some features actually change idioms.
Finally, No Starch will be publishing the book in paper form. So there's also
the question of that, but at the moment, we're mostly interested in shipping
this one, but everyone is on board with _some_ sort of periodic refresh of the
printed edition as well. We'll see how it goes.
Does that make sense?
~~~
ronjouch
Related: I understand the versions hosted at doc.rust-lang.org you mention
above, but what's about the version linked in your post? ( [http://rust-
lang.github.io/book/](http://rust-lang.github.io/book/) ). It's what's in
master right now, right?
EDIT ah, [https://github.com/rust-lang/book](https://github.com/rust-
lang/book) clarifies this, it's a rewrite, and is not (yet) part of the main
Rust repository.
~~~
steveklabnik
The version hosted on docs.rust-lang.org is the current edition of the book,
whose source is in-tree. [https://github.com/rust-
lang/rust/tree/master/src/doc/book](https://github.com/rust-
lang/rust/tree/master/src/doc/book)
In order to not trash the book while we're doing the re-write, we've moved it
to a new repository, which is the one you've linked.
When the new book is ready, we will either merge it into `src/doc/book` or
remove the book from the main repository and use rust-lang/book as the new
official source, it's not totally clear yet which.
~~~
carols10cents
> When the new book is ready, we will either merge it into `src/doc/book` or
> remove the book from the main repository and use rust-lang/book as the new
> official source, it's not totally clear yet which.
Also, no matter which of these two options we choose, we still plan to ship
the book inside installations of Rust for offline reading, and host the book
on docs.rust-lang.org.
------
steveklabnik
Hi all! As always, happy to answer questions here.
~~~
kevinmgranger
The Rust Programming Language remains as one of the best introductions I've
had to a new programming language. I thank you for your work on it.
~~~
bluejekyll
Yes, and the work on the documentation in general. It's amazing. So many other
young languages are crap in this area, even mature ones. I think the thing
that makes Rust amazing is that it's young, and yet well documented, making it
easier to get started.
Can't thank you enough, nice work.
------
doppp
Has anyone used Rust for game development? I know about the Piston engine but
has anyone successfully released a commercial game on Windows, Mac OS X and
Linux with it or is it still pretty much an academic endeavour to make games
in Rust?
~~~
rsaarelm
I've been developing a hobby game engine and did a 7-day roguelike with it
last year:
[https://github.com/rsaarelm/phage](https://github.com/rsaarelm/phage)
I'd say it's about on par with C++, effort-wise. Big learning curve to get
something as complex as a game off the ground, and you need to think about the
design, but I can't think of many long-term annoyances. The ecosystem is still
sparse, so viable game projects will probably skew towards 2D and otherwise
modest scale.
------
dman
One feature request - could the book be made available in info format so that
its idiomatically integrated into emacs?
~~~
steveklabnik
Is there a good markdown -> info converter? I don't use emacs.
~~~
dbaupp
The default answer for "is there a X to Y?" converter for text formats is
pandoc, so one could possibly go markdown -(pandoc)-> texinfo -(makeinfo)->
info. I do not know if this is sufficiently high fidelity.
~~~
dman
Will give this pipeline a shot and see what the results look like.
------
seeekr
OT/typo: "and I’m proud to have her name next time mine on the cover" should
have -time and +to. Keep up the good work!
~~~
steveklabnik
Gah, thanks!
| {
"pile_set_name": "HackerNews"
} |
What the Public Knows About Cybersecurity - rrdharan
http://www.pewinternet.org/2017/03/22/what-the-public-knows-about-cybersecurity/
======
chha
Non-IT friends tend to see me as somewhat paranoid when they notice me using
2FA or VPN's, but I was actually surprised people knew this much.
| {
"pile_set_name": "HackerNews"
} |
Color e-book devices coming from E Ink in 2011 - waderoush
http://www.xconomy.com/boston/2010/03/15/new-e-ink-leader-sees-colorful-future-for-company-under-taiwans-prime-view-international/
======
Xichekolas
E Ink's big problem is the Mirasol technology that Qualcomm has.
Mirasol supposedly has better power usage characteristics than E Ink, and does
color and full-motion video to boot. It's also basically ready now, with
Qualcomm promising both 5.7 and 10.5 inch tablet/readers using the display by
the holiday season.
To see the Mirasol in action:
[http://www.youtube.com/watch?v=jmpBgaPGYKQ&feature=playe...](http://www.youtube.com/watch?v=jmpBgaPGYKQ&feature=player_embedded)
The rumor is that this is the display that will be found in the next Kindle,
but who knows for sure.
~~~
elblanco
Thanks for linking to Mirasol, I hadn't heard of it before and am now terribly
excited.
I think E-Inks main problems are two-fold: 1) It took _forever_ to come to
market in any meaningful way. I think I remember reading about it in the mid
90's if I'm correct.
2) It cost too much once it did come to market. I'd expect an 8.5"x11" display
capable of showing PDFs to cost a fraction of what they do now.
okay, actually three-fold
3) It's dead slow and leaves artifacts all over the place unless you do an
annoying blank out of the entire display area.
There's plenty of room for B&W digital paper displays in today's world, but it
just seems to have come out all wrong, too late and too much money for the
industry to stick with it. E Ink just won't be able to keep up with the
technology demands of the market space it seems to have created.
~~~
berntb
The slow update is my main problem with E-Ink. I want to browse and make notes
in documents/code on an A4-sized screen which is as easy to read as paper.
(Preferably sized as two A4. Color and video would be nice, but optional.
Minimal power need also optional.)
I don't really care if Pixel Qi, E-Ink, Mirasol or one of the others solves
this, but is seems I'll finally be able to buy one in less than a year.
| {
"pile_set_name": "HackerNews"
} |
Sharing Salary Figures on Facebook - chaostheory
http://www.nytimes.com/2008/04/27/fashion/27salary.html?_r=1&ref=fashion&oref=slogin
======
jeremytliles
When I was getting my MBA, one of my professors discussed the idea of a
workplace where everyone's compensation was disclosed. The basic conclusion of
the discussion was that since there are virtually no workplaces in which
compensation is truly tied to value (and value is impossible to measure
anyway), knowing what co-workers make will always lead to morale issues.
As far as friends go, I think we will experience feelings of resentment,
jealously, inferiority, or superiority to a lesser degree than with coworkers,
and are more likely to be happy for a friend who is compensated above what we
see as her perceived value, and more willing to try to help someonse who is
compensated below what we see as her perceived value. This is at least partly
because we are not competing for pieces of the same pie as we are in the
workplace.
~~~
ryanmahoski
As the number of measurable work metrics increases, it becomes (roughly)
exponentially more difficult to assess employee net value. If we can
triangulate this measured value, we still may have immeasurable metrics--which
will always break the formula. To the extent compensation is tied to
immeasurable quantities, all employees should resent the system as unfairly
hackable.
Some work systems are possible to measure and thus compensation may be
formulaic and (roughly) just. For example, if I offered you a monetary reward
to enter a boolean into a form, you either do the work (by entering a 1 or 0)
or you don't. With Mechanical Turk, I can design complex algorithms with
failsafe controls that will objectively assess and reward worker value. To the
degree I can describe real-world problems and automate inputs and outputs, I
can build an efficient and viable organization. Is a fair, transparent system
intrinsically "happier"? I am not sure, but I do know the wealth creation
potential here is massive.
------
hugh
Is this a real trend, or just another trend made up by the New York Times to
fill in space?
~~~
simianstyle
The only other company that I know that does this is Whole Foods Stores. Each
store has all the salaries listed up for all the employees to portray a
completely transparent display of trust.
However, i'm not quite convinced that it works.
| {
"pile_set_name": "HackerNews"
} |
Safety Implications of Serialization Timing in Autonomous Vehicles [pdf] - blahblahblah1
https://polysync.io/download/polysync-safety_and_serialization.pdf
======
jjj777
I don't get the context for this paper. Normally in a mission/safety critical
system you're looking to determine the worst-case latency from stimulus-
response. This means you:
1\. Determine the worst-case execution time of the software on your system
(all components, including ISRs) 2\. Do scheduling analysis (e.g. construct a
static cyclic schedule, use a priority preemptive scheduler and do Response
Time Analysis). 3\. Do scheduling analysis for the network (e.g. using CAN you
can apply Response Time Analysis to get worst-case latencies). 4\. Do system-
wide analysis (e.g. using Holistic Scheduling) to get the end-to-end
latencies. Then check these against the requirements. This is particularly
important in TMR systems where you need all three channels to produce results
in order for voting to take place - a late result = a serious fault condition.
So I don't get why there's this focus on average performance of this algorithm
rather than looking for a deterministic algorithm with good low bounds. It
also seems that the message sizes depends on the algorithm itself: that also
needs to be bounded to be able to analyze the communications system to
determine worst-case latencies (this is of course crucial if a static time-
triggered communications bus like FlexRay is being used).
The paper mentions that Linux is used to conduct the tests. But what's the
actual target platform? A microcontroller with a cyclic schedule or an RTOS
with priority pre-emption? If the latter, what does the schedulability
analysis look like? If the former, what does the cyclic schedule look like?
What's the communications architecture look like? Is it switch-based like
AFDX? Or a CSMA/CA bus like CAN? Or a TDMA bus like FlexRay? What's the timing
analysis look like for the communications?
~~~
zackpierce
Hello, and thanks for the feedback.
What you have described is absolutely the reasonable and traditional approach
for designing a solution for a particular critical hard real-time system.
The context is that broad serialization technology decisions for autonomous
vehicles are being considered outside of the focused engineering process for
specific critical systems. For example, when middleware or integration
frameworks come up (often with an eye toward being imposed top-down for many
systems), consideration of serialization technology and its implications for
performance seems to occupy an unfortunately small portion of the analysis.
This paper attempts to send the relatively simple message that "yes,
serialization tech choice matters" to decision makers for whom it may not be
apparent. Also, to highlight that there's a need to pay attention to messaging
performance even outside of the hard-realtime parts of an autonomous vehicle.
In retrospect, you're right that more detailed bounds analysis rather than
relying on the relatively facile use of means (outside of the minimal outlier
visualization in the boxplot) would have been a good addition to the paper.
Thanks again!
------
jjj777
OK, I get it now. Quite surprising that serialisation is a key performance
issue. But then again, pushing signals in and out of CAN frames is also a key
performance feature in regular ECUs so I guess that's a universal issue with
all sensor/control/actuator systems.
Finding the WCET used to be about cycle accurate models but that's long been
blown away by the complexity of real hardware. But there's quite a good bit of
work on how to instrument real hardware and then pick up key subpaths
measurements to assemble into a good bound. These guys have been doing this
for a few years now and have a good tool:
[https://www.rapitasystems.com/products/rapitime](https://www.rapitasystems.com/products/rapitime)
------
zackpierce
Primary author here, should be able to address questions that arise.
| {
"pile_set_name": "HackerNews"
} |
Quickly review changed methods and functions in your pull requests - stablemap
https://github.com/blog/2407-quickly-review-changed-methods-and-functions-in-your-pull-requests
======
zachrose
This sounds like a step in a good direction.
IMHO diff-based code review creates distorted incentives. Moving large pieces
of code around feels harder to review, and adding an extra line or two feels
easier to review. In the long term, this drives codebases in the wrong
direction. (That 900-line method got there through hundreds of innocuous-
looking PRs.)
I hope eventually we get tools that make refactorings easy to review. I don't
know what that would look like, or how well this can be done in today's
languages, but there's room for improvement.
~~~
sdesol
Having talked to both Microsoft and GitHub, I get the impression that
intelligent code reviews, is an area of great interest for both companies. In
the near future (~2 years), I can see us starting to review code in both the
traditional way (line diffs) and in a more intelligent way (semantically and
by code change impact).
For example, if you moved a function 50 lines down and changed a string
variable in that function, you'll be able to review and discuss the code
changes like so:
Semantic changes
- Moved function FOO with public scope 50 lines down
- Updated string variable FOO with public scope in function FOO
Change impact
- Moving function FOO 50 lines down does not change its scope.
- Lines 56 and 30 in files X and Y in repositories Q and Z, reference the BAR variable.
- Open pull request #35, contains FOO function changes as well.
- Active releases 1.x and 2.x do not have these changes.
The basic idea is, instead of only being able to review and comment on the
lines changed, I fully expect us to be able to discuss their impact as well.
------
apeace
I hope Github introduces this to the main code browser as well, not just PRs.
I very often clone repos just so that I can open the code in an IDE,
CTRL+Click a method and jump to its definition. It would be neat if Github had
IDE-like features (but without becoming a platform for editing--just viewing!)
~~~
alimoeeny
sourcegraph.com is your friend, at least for some languages.
------
nikic
Tangentially related, my number one feature request for GitHub would be
support for cross-referencing (a la Opengrok) in the code browser. Browsing
through project code without a local checkout is one of the main things I do
on GitHub, but it's not very ergonomic without cross-referencing. (I also
realize that this is much to ask for, considering how much time Opengrok takes
to index large codebases.)
~~~
michaelmior
Sourcegraph[0] has a Chrome extension which provides a version of this
feature.
[0] [https://sourcegraph.com](https://sourcegraph.com)
~~~
sqs
Sourcegraph founder here. The Chrome extension direct link is
[https://chrome.google.com/webstore/detail/sourcegraph-for-
gi...](https://chrome.google.com/webstore/detail/sourcegraph-for-
github/dgjhfomjieaadpoljlnidmbgkdffpack?hl=en). Thanks for the mention!
------
tedmiston
> Searching the file finder for a method or function in a Go, JavaScript,
> Ruby, or TypeScript file will provide you with a timeline-style view of the
> results, so you can skip to the most impactful parts of a pull request.
It would be awesome to hear a timeline for rolling this out to more languages,
especially Python.
------
bcherny
I wonder how the Souregraph guys feel about Github getting into their
territory..
~~~
sqs
Sourcegraph founder here. We love it. The more developers who are using code
intelligence in their tools, the better the language support will be for all
the various languages and repositories out there. That's good for developers
everywhere, and we (Sourcegraph) could never build it all alone.
Our master plan at
[https://sourcegraph.com/plan](https://sourcegraph.com/plan) describes what
we're building on top of these basic "code intelligence" primitives, to help
developers in all of their dev tools (not just GitHub), in all of their
workflow, and in companies that have lots of code. And just like GitHub, we
let people use these things for free on open-source so they can see how useful
they are.
------
petetnt
Nice addition!
If anyone at GitHub is reading this, the dropdown cannot be keyboard navigated
because the dropdown doesn't scroll with the focus.
------
pmoriarty
Can magit do this for code outside of github?
~~~
cosmicexplorer
Actually not sure how to do this with magit, but I just tried `vc-region-
history' while highlighting an R method signature and body and got a pretty
slick view of all the relevant commits. Would definitely prefer magit for
jumping to commits, might take a few lines of elisp.
EDIT: Actually, [0] mentions =L, which seems to work flawlessly. Hacking on an
option to take the selected region instead of manually specifying file and
lines is easy. Alternatively, magit-blame lets you look at a specific change's
commit.
[0]
[https://github.com/magit/magit/issues/1717](https://github.com/magit/magit/issues/1717)
| {
"pile_set_name": "HackerNews"
} |
Our first $100,000 Month and the Hacker News discussion from a year ago - localcasestudy
http://www.reddit.com/r/EntrepreneurRideAlong/comments/1dy1i0/one_year_anniversary_of_my_first_post_and_we_just/
Thought it would be interesting to stop back and show what we've done.
======
josephagoss
Impressive. Being open about the journey and giving ideas and hope to others
is very commendable.
Also $100,000 a month from a company that couldn't scale like a software
company is really cool. I think more Hacker news people should worry a bit
less about 'scaling' and getting a good product going first and foremost.
~~~
localcasestudy
Thanks man, really appreciate it. It's been a fun ride! You're absolutely
right. I think, "will it scale" is often a fairly silly question when you
think about it. Not every company has to become a billion dollar company to be
successful. And while scaling geographically is great, one can create a model
that goes deep instead of going wide, and for a local business this could mean
totally dominating a city with multiple verticals. Either way, "will it scale"
shouldn't be the question. "Will it sell?" is more important, especially for a
boot-strapped company.
| {
"pile_set_name": "HackerNews"
} |
Show HN: Shakti.sh: Arthur Whitney's latest K version (k9) - jloveless
https://shakti.sh/
======
jloveless
Includes new FFI interface. node.js , C and python. See (limited docs)
[https://shakti.sh/ffi/_.d](https://shakti.sh/ffi/_.d)
| {
"pile_set_name": "HackerNews"
} |
Meditations on Moloch (Coordination Problems) - arikr
https://archive.fo/Yiryp
======
arikr
Using the archive.is link because the current version of the post has some
edits from the original.
| {
"pile_set_name": "HackerNews"
} |
Ask HN: How do you learn a new language or library? - eric-hu
I've been reading through the Backbone.js source code this week. While it's been a good exercise for my javascript-fu, it does feel pretty dull at times. I'm forcing myself to power through all of it because I know that I can't really form ideas with tools I'm unfamiliar with.<p>So, out of curiosity, how do you learn a new language or library? What's been most effective? Has that changed over time?
======
saiko-chriskun
I don't really see why I'd take the time to learn a new language or library if
it seemed dull to me.
------
tjr
Make something with it.
| {
"pile_set_name": "HackerNews"
} |
Shapeoko forums and wiki hacked – obfuscated PHP found, we're trying to reverse - justinclift
http://www.shapeoko.com/forum/viewtopic.php?f=7&t=7659
======
justinclift
Is anyone around with experience reversing obfuscated PHP code?
We're trying to figure out what the code implanted by some hacker types in our
forum pages does:
http://www.shapeoko.com/forum/viewtopic.php?f=7&t=7659
Initial reversing of code here by jacob32123, one of our Community members:
http://pastebin.com/U6qwqhSX
(line 221+ has more decoded info)
If people are around with interest in this kind of thing, and time to
assist... it would be really helpful. :)
http://www.shapeoko.com/forum/viewtopic.php?f=7&t=7659&start=10#p60550
| {
"pile_set_name": "HackerNews"
} |
Class-action settlement against Paypal - alphydan
https://www.accountholdsettlement.com/
======
teslabox
Paypal closed my account a few years ago - my friend panicked when her own
account was closed, and ended up taking me with her. Looks like I'll get $3 as
a result of this class action lawsuit.
| {
"pile_set_name": "HackerNews"
} |
Can American soil be brought back to life? - clumsysmurf
http://www.politico.com/agenda/story/2017/09/13/soil-health-agriculture-trend-usda-000513
======
oldandtired
Like a lot of things, soil infertility is a symptom of a much larger societal
problem. Within society, there are many different competing groups that have
"the answer". Progressives want a specific list, conservatives want another
list, city dwellers want a list (irrespective of being progressive or
conservative), country dwellers want another, business owners want their own
list, workers want another, government wants a list, law enforcement wants
one, radicals want one, etc., stc., etc.
All of these lists of wants are at cross purposes. All of it is based on self-
interest. Very little of it is based on a wider responsibility for all
citizens and the country that supports them.
This won't change as people won't give up on their list of wants. The attitude
of "us and them" just reinforces the basic problems. Is there a solution? Most
certainly. But it requires a change in the basic attitudes of every citizen
and most will object to having to face who and what they are.
When a society is focus on "rights" instead of responsibilities then the
society loses its ability to think in the large. When a government is focussed
on it continuation and power it loses sight of its responsibility to build
society.
There is no short term solution that is a quick fix. In the case of America,
it is heading down the path of civil war and devastation because pretty well
every level in the American society is in the mindset of "them and us". This
is obvious to anyone who opens their eyes. Law enforcement has forgotten that
they are there to serve and protect the citizenry and not themselves.
Government is self-serving. Corporations are treating their customers as
slaves and a resource to control. The general population is focussed on their
own little problems of day to day self-gratification.
~~~
AdamCraven
You've hit the problem on its head, but the solution is not to try and change
people's behaviour on a large scale, but to incentivise based on the self-
interest you've mentioned.
From the consumers perspective, there is little indication as to the quality
of soil something has been grown in. But there must be an effect on the plant
itself if it is grown in poor soil in the form of lower macro, trace minerals
and other indicators of plant health detectable within the plant.
Like the organic standards that cover production methods, we need an opt-in
food quality standard. If plants were tested after production for indicators
of plant health and labels could be put on vegetables indicating quality.
Self-interest of the consumers buying higher quality foods would quickly
incentivise farmers into increasing plant quality, which in turn will correct
our soil.
~~~
oldandtired
I grew up in an area in which the major crop was sugar cane. Some years ago
(15 or so), I was talking to my father about the fertility of the soil in the
area.
He passed onto me a conversation he had had with one of his farmer friends. He
was told that the soil was totally infertile and was only there to hold up the
cane. All nutrients came from fertiliser that they put into the soil.
In this case, the results is sugar which you can't tell how good the plant is.
There have been a number of farmers over the years in that area who did crop
rotation and field resting. But they were far and few between. In other areas,
they are using recycling methods to put organic matter back into their fields.
However, this is not common, even though there are groups of farmers who see
the benefit of these processes for themselves and the surrounding environment.
Part of an education process that we undertake with our young people is for
them to understand where food comes from, including when we have the
opportunity to teach them gardening (vegetables), animal husbandry and the
killing, dressing and butchering of animals for food (sheep and goats).
Some take the lessons well, some do not. But they do start to understand where
their food comes from.
Too many people have no idea of what is needed to produce the food they
consume. No idea.
Testing foods can be quite simple. The taste of good quality well grown food
(meat, vegetables, fruit, milk, eggs, etc.) is quite different to those that
are grown in the common farming practices of today.
I am currently enjoying eating 7-8 year old mutton and it is better than the
best spring lamb that I have had. They ate and they wandered and were not
stressed.
~~~
dennis_jeeves
>I am currently enjoying eating 7-8 year old mutton and it is better than the
best spring lamb that I have had.
Where do you get this?
~~~
oldandtired
The sheep were originally given to me by people who just wanted to get rid of
them, I still have a goat that was originally intended for someone else and I
had been asked if I could look after it for a few weeks. The person who was to
receive it moved into a nursing home and it was subsequently given to me. My 6
year old granddaughter has been keen to be involved with doing the goat, which
I'll be doing later. If the weather is still cold when I get back from
visiting my parents, I'll be looking at doing it then. In the meantime, he
will be fattened up as much as possible.
I have 2 acres just on the edge of town and for many years, we have run some
level of stock on it. All of the various beasts have ended up in my freezer.
The last lot I killed, dressed and butchered myself (with the help of a number
of young people) out of necessity as no butcher would come in for just 3
sheep.
As the sheep had little need to run anywhere and had luscious feed, they
turned out to be so tender. I did try to source some more via the local
butchers, but found that would be extremely expensive as most of the sheep are
culled for lamb and not kept for wool in our region.
If you ask around, you might find some appropriate beasts that you can get
cheaply (whether that be steers, goat or sheep). Though you may find getting
them to the abattoir and then to the butcher somewhat expensive.
------
escape_goat
> The federal crop insurance program is based on farmers planting the same
> crop in the same place each year to have a record for production, and it is
> not flexible enough to account for practices like cover crops.
If you want to take an actionable item away from this article that fits
(potentially) the skillsets of your friends and neighbours on Hacker News, it
is this one. This is a data problem and an actuarial problem. Solving it can
result in net social benefit disproportionate to the investment in
infrastructure, politicial capital (to change legislation), and (already
existing) government programs required.
I don't know if, politically, there are any groups who would be organized to
swing into action in opposition to federal crop insurance reform, but they or
any who may shake out of the math (presumably there's some practices and crops
_cough_ corn that benefit from less information, relatively speaking) have an
uphill battle to fight against a variety of constituent-motivating narratives.
It's hard to argue against big government spending when tens of millions of
dollars is at stake.
~~~
24gttghh
So, after the Dust Bowl, there were all kinds of things promoted by the
Federal Gov't like crop rotation, contour farming, and planting wind breaks to
keep the soil from blowing away. When did we forget that lesson?
And I looked up what I think is an actual rule regarding Crop Rotation when it
comes to the FCIC[0]:
>(B) ASSIGNED YIELD.—If the producer does not provide satisfactory evidence of
the yield of a commodity under subparagraph (A), the producer shall be
assigned— (i) a yield that is not less than 65 percent of the transitional
yield of the producer (adjusted to reflect actual production reflected in the
records acceptable to the Corporation for continuous years), as specified in
regulations issued by the Corporation based on production history
requirements; (ii) a yield determined by the Corporation, in the case of— (I)
a producer that has not had a share of the production of the insured crop for
more than two crop years, as determined by the Secretary; (II) a producer that
produces an agricultural commodity on land that has not been farmed by the
producer; or _(III) a producer that rotates a crop produced on a farm to a
crop that has not been produced on the farm;_
Just search the doc for "rotate". It is only mentioned once. I think the FCIC
only applies to wheat and some other grains.
[0][https://www.agriculture.senate.gov/imo/media/doc/75-30%20-%2...](https://www.agriculture.senate.gov/imo/media/doc/75-30%20-%20Agricultural%20Adjustment%20Act%20Of%201938%20&%20Federal%20Crop%20Insurance%20Act1.pdf)
------
exDM69
I recently took part in a course on doing farm work with horses. It was a
large garden where all the farm work had been done exclusively with horses for
about 10 years, after decades of using tractors. The tractors had turned the
soil into hard, clumpy clay which yielded bad crops and required more and more
fertilizers every year. In about a decade of using horses, manure and
traditional methods, the topsoil had turned nice and soft and nutrient-rich.
Not at all like the hard clay my grandparents' farm and the owners of the
garden were more than happy with the results.
Working with horses was slow, hard and laborious work but it was a lot of fun!
Much more fun than doing the same with tractors (which I also think is quite
fun).
Unfortunately, going back to horses or oxen never going to be viable in a
large scale. The recent trends in agriculture have been making machines larger
and larger to reduce the amount of labor required, causing the soil to be
packed even harder, requiring more tilling for the next crop.
Maybe autonomous farm equipment could reverse the trend, as machines could be
made smaller without increasing the amount of human labor.
~~~
roel_v
"The tractors had turned the soil into hard, clumpy clay which yielded bad
crops and required more and more fertilizers every year."
Mechanization is of course the main driver of soil compaction, but here too
there are advances in technology that mitigate issues without having to revert
back to horses (or needing revolutions like swarms of small autonomous bots).
For example, soil compaction can be reduced to the point where it doesn't
affect plant growth significantly any more by using the correct tire pressure
on tractors; i.e. (much) lower pressure when the tractor is on the field. But
those pressures are not suitable for riding on roads or longer distances, so
many farmers (actually, generally the contractor doing the work, although this
varies by region/country) don't deflate their tires because it takes so much
time to adjust them every time.
So, modern tractors have automatic inflate/deflate installations, making it
much easier to use the right pressure for every task and on every soil type.
Of course this costs extra, so you still need to convince people of the need
for it, and enforce the habit on those actually doing the work.
~~~
dsfyu404ed
It's not practical to deflate a liquid filled tire. Most tractors run liquid
filled tires for weight/traction.
~~~
roel_v
Not sure if you're saying I'm just making things up - here are some of the
first links off a quick google:
\- [http://www.fwi.co.uk/machinery/tractor-tyres-make-sure-
your-...](http://www.fwi.co.uk/machinery/tractor-tyres-make-sure-your-
pressures-are-right.htm)
\- [https://www.agribrink.com/](https://www.agribrink.com/)
\-
[http://www.omafra.gov.on.ca/english/crops/field/news/croptal...](http://www.omafra.gov.on.ca/english/crops/field/news/croptalk/2013/ct-1113a1.htm)
Now I'm not a soil scientist, but I am a programmer who's for the last year or
so been programming models for assessing soil threat risks, including soil
compaction (one of the biggest soil threats in agriculture); and work with
some of the world's foremost expert scientists in this field, as well as with
representatives of e.g. machine manufacturers. They all say that compaction is
mostly due to increases in weight of machinery, and that proper tire pressure
is the most important mitigation measure we have available. Liquid-filled
tires are never mentioned in this context, it's a rarity.
You claim that 'most' tractors run liquid filled tires - I'm not sure what
you're basing that on, or what locality you're talking about, but while I do
not have any numbers at hand, I have never heard of this being something other
than an incidental thing. For example, the Michelin site
([http://agricultural.michelinman.com/us/Properly-use-your-
tir...](http://agricultural.michelinman.com/us/Properly-use-your-
tires/Ballasting-tyres-for-better-use)) mentions it as a possibility, but not
as something that 'most' tractors would have.
------
AFNobody
Well the obvious answer is "Yes" but I am honestly uncertain whether it can be
done while maintaining current profit margins which is was always the _real
issue_.
A well-educated farmer, focused on a plot of land that is meant to be kept for
generations without a profit focus can certainly do it. I suspect if you try
to scale this process up, the issue is its more expensive if you were a
corporation who has to pay a better educated class of labor to maintain soil
quality.
Till, fertilize, water is alot simpler than trying to build an ecosystem that
spans a 4000 acre plot of land.
I think until society values externalities more accurately, it is unlikely to
catch on like so many other things that cost even a tenth of a percent of the
overall corporate profit margin.
~~~
QAPereo
This is also a society that happily wastes a vast amount of food which is
produced based on conformity issues, and other nonsense designed to maximize
profits in supermarkets. At every level, we’re deeply complicit, and our
revealed preferences are clear.
~~~
AFNobody
I think the majority's preferences as a society is clear.
I also believe there is a substantial minority that would prefer a more
sustainable approach to many things in the interest of long term
sustainability.
The reality is our level of infrastructure spending, to the way we produce
power, to the condition of the majority of the arable land is fundamentally
unsustainable for more than another 50 years without substantial technological
change. This does not even get into climate change related impacts on
agriculture.
~~~
WalterBright
We've historically often engaged in unsustainable practices, like:
1\. hunting whales for lamp oil
2\. cutting down trees for fuel to make glass and build ships
3\. using natural rubber
4\. no sanitation in the cities
5\. using horses for transportation
6\. using well water in cities
As these became unsustainable, alternatives were discovered and developed.
~~~
jacobolus
Or in some cases they weren’t, and civilizations collapsed.
~~~
pdfernhout
To support your point:
[https://en.wikipedia.org/wiki/Societal_collapse#Theories](https://en.wikipedia.org/wiki/Societal_collapse#Theories)
------
jfarlow
Check out Trace Genomics [1] for a new company at QB3 that is taking a stab at
quantifying what organisms are part of a particular farm's microbiome. They
sequence the DNA of everything in a given soil sample, then figure out who's
DNA is who's - providing a snapshot of what life is living in that soil. And
with enough snapshots, a farmer can actually start to develop a quantitative
picture of the web of inhabitants in a given parcel of land. And then act on
that information.
[1] [https://www.tracegenomics.com](https://www.tracegenomics.com)
------
Twirrim
What's somewhat amusing is this is essentially talking about a variation on
the four course crop rotation, a farming practice that dates back to the 17th
century, and at one stage dominated the farming practices of Europe.
from [https://www.britannica.com/topic/Norfolk-four-course-
system](https://www.britannica.com/topic/Norfolk-four-course-system)
> In the Norfolk four-course system, wheat was grown in the first year,
> turnips in the second, followed by barley, with clover and ryegrass
> undersown, in the third. The clover and ryegrass were grazed or cut for feed
> in the fourth year. The turnips were used for feeding cattle and sheep in
> the winter. This new system was cumulative in effect, for the fodder crops
> eaten by the livestock produced large supplies of previously scarce animal
> manure, which in turn was richer because the animals were better fed. When
> the sheep grazed the fields, their waste fertilized the soil, promoting
> heavier cereal yields in following years.
~~~
stinos
> dates back to the 17th century
Note that crop rotation itself (2 course/3 course) is much, much older. And
Wikipedia claims it was first done in the 16th century in what now is Belgium.
Actually, there are a bunch of things presented as 'new' in the article while
I read nothing which I never read before, and many of the solutions bascialy
come down to 'do it as our ancestors did it' so it's not all that new either.
The vast scale of it though is new. And the rigid economic system attached to
it.
~~~
Twirrim
2 course / 3 course used to rely on fallow periods, IIRC, though it's been
more than 20 years since I covered this in school :)
What's so significant about all this stuff is that this agrarian revolution
lead to greater food productivity, increasing populations, and started to
increase the labour pool available for other tasks. This stuff basically kick
started the eventual industrial revolution. That's part of why it's so strange
to see it coming around again
------
seiferteric
What about the fact that our agriculture system is (mostly) open loop? Every
time you harvest food and consume it, where do the waste products end up? I
think we need to also work on closing this loop.
~~~
abhinavkulkarni
@seiferteric: Can you please explain this more? I don't quite understand what
you mean by 'open loop'. Thanks.
~~~
mikekchar
Not the OP, but essentially you take vegetables out of a field. You eat the
vegetables. You poop. Your poop ends up in a sewage treatment plant. Nothing
ends up back in the field. Instead we add fertilisers that we have mined out
of the earth for the macro nutrients.
It's not just sewage either. Every time you till the earth, you expose it to
the air. This oxidises the minerals and often makes them unavailable for the
plants. Because the fertiliser we add is very water soluble it drains through
the water table and ends up in the rivers and eventually washes out to sea (or
just clogs the rivers with algae).
Tilling and pesticides also kill the organisms that are responsible for moving
nutrients around under the earth. Additionally, we tend to plant mono-culture
crops with short root structures. This stops a variety of plants from breaking
down nutrients in the soil and moving them to the top layer of humus. So
either we till deeper (exacerbating the problem) or we essentially lock all of
the nutrients below the level that the plants can access.
In the end, you basically are slowly extracting all of the bioavailable
nutrients out of the soil, and depositing them in the sewage treatment fields.
At the same time you are oxidising what's left and washing everything else out
to the sea. Any fertility that remains is below the access of the plant roots
(and probably not in a form that can be utilised right away).
"Closing the loop" means looking at the places where we are losing fertility
and making sure that it is looping back. So, if you take nutrients out in the
form of food, we return it in the form of sewage. You avoid tilling and you
plant a variety of crop varieties that circulate the nutrients in the soil
layer. You avoid adding highly water soluble salts that simply leach out of
the soil and into the water table.
It sounds simple-ish, but it's actually quite a bit challenge. We don't really
do a lot of research in this area (as far as I can tell). Most agricultural
research is geared toward increasing yields and reducing costs as opposed to
sustainability.
~~~
oldandtired
It is not just a bit of a challenge, it is a huge challenge that requires so
many things to change in the infrastructure. There are many who have
researched this problem and have published their results. But it requires some
expense which many of the farmers cannot afford and certainly the corporations
that control the various associated industries don't want to put funds into as
it would drastically reduce their control and profits.
------
wavefunction
I am doing my part in my backyard as I'm fortunate to live in an extra-
judicial territory of my municipality so the regulations are sparse at the
moment.
Mulch, sun and water. I also dug a large bio-char pit I've been using to
reduce wood-stuff into carbon and potash. I am eventually going to ammoniate
these products and redistribute throughout the plot.
I also underestimated the biochar hell-pit and buried and hosed-down a hot-
burning pyre and one week later woke up to a tendril of smoke curling up from
the pit which later turned back into a fire with additional fuel.
I found it alarming and remarkable so be sure to be safe with pyrolysis,
folks!
~~~
Sophistifunk
I would like to know more about this "bio-char pit" could you point me to a
URL or three?
~~~
debacle
A good video series on the topic:
[http://skillcult.com/biochar-and-charcoal/](http://skillcult.com/biochar-and-
charcoal/)
~~~
Sophistifunk
Thanks!
------
kwhitefoot
> Promoting soil health comes down to three basic practices: Make sure the
> soil is covered with plants at all times, diversify what it grows and don’t
> disrupt it. What this means in practice is rotating crops, so fields aren’t
> trying to support the same plant year after year. And it means using
> techniques like “cover-cropping”–planting a secondary plant like grasses,
> legumes or vegetables–between rows of crops or on other exposed soil instead
> of leaving it bare.
This is hardly news. How come Norfolk crop rotation has been 'forgotten'? See
this Britannica article: [https://www.britannica.com/topic/Norfolk-four-
course-system](https://www.britannica.com/topic/Norfolk-four-course-system)
------
bostik
Regenerating soil is nothing new, really. The Amazonian tribes learned how to
cultivate a rich black soil[0] long time ago. There is ongoing research on how
to make that work again on an industrial scale - and with sufficiently short
timespans.
The article mentions that even common composting helps, but the problem tends
to be how to prevent it from running off. No wonder. As anything in biology,
soil regeneration takes time. Having your fresh biomass flow elsewhere runs
counter to the purpose.
0:
[https://en.wikipedia.org/wiki/Terra_preta](https://en.wikipedia.org/wiki/Terra_preta)
~~~
sigmaprimus
I agree this is nothing new, and although I tend to believe that no till is an
essential part of healing the soil it will not work alone if nothing is done
to break up the agricultural economic complex controlled by the multinational
companies only interested in profit.
A good book published in 1975 written by Masanobu Fukuoka called "One Straw
Revolution" is very informative on this subject easy reading and obtainable
for free by searching it's title followed by .pdf in your favorite S.E.
------
pdfernhout
It's long been known how to fix soil; see for example from 1987: "Towards
Holistic Agriculture: A Scientific Approach" by R.W. Widdowson:
[https://www.elsevier.com/books/towards-holistic-
agriculture/...](https://www.elsevier.com/books/towards-holistic-
agriculture/widdowson/978-0-08-034211-5)
Or from 1911:
[https://permaculturenews.org/files/farmers_of_forty_centurie...](https://permaculturenews.org/files/farmers_of_forty_centuries.pdf)
More: [http://soilandhealth.org/](http://soilandhealth.org/)
Adding rock dust works wonders too:
[https://remineralize.org/](https://remineralize.org/)
My wife and I wrote a FOSS garden simulator in the 1990s (a six+ person-year
labor of love) to help people understand some of this: [http://www.kurtz-
fernhout.com/summary_gwi.html](http://www.kurtz-fernhout.com/summary_gwi.html)
I got the idea while working as the Program Administrator on summer for the
NOFA-NJ Organic Farm Certification Program in the later 1980s, but it took
many years (including more education in grad school in biology) to make the
software.
See especially from the help system of that software on how conventional
agriculture destroys the soil:
[http://www.gardenwithinsight.com/help100/00000385.htm](http://www.gardenwithinsight.com/help100/00000385.htm)
"In the soil, tiny charged particles called micelles usually have many areas
of negative charge (called sites) on their surfaces. Positively charged ions
(cations) are drawn to these negative charge sites and stick to the clay
particles (are adsorbed). In most soils, 99% of soil cations can be found
attached to micelles (clay particles and organic matter) and 1% can be found
in solution. Mineral cations in the soil (mainly Ca2+, Mg2+, K+ and Na+)
maintain an equilibrium between adsorption to the negative sites and solution
in the soil water. This equilibrium produces exchanges -- when one cation
detaches from a site (leaving it free), another cation attaches to it.
Therefore the negatively charged sites are called cation exchange sites. The
number of these sites per unit weight of dry soil is called the cation
exchange capacity, or the capacity of the soil to hold cations. Because any
cations loose in the soil solution are vulnerable to leaching as water flows
out of the soil, a high cation exchange capacity is always desirable. Cation
exchange sites act as a sort of mineral buffer for the soil, storing minerals
important to plant and animal growth for long periods of time. The attraction
of cations to cation exchange sites is strongest for H+ ions (which make the
soil acidic) and for polyvalent ions such as Ca2+ and Al3+. The weakest
attraction is for monovalent ions such as K+. When ammonium nitrate
fertilizers are added to the soil, the ammonium ions (NH4+) are strongly
attracted to cation exchange sites because of their high valence (4). The
ammonium ions displace many other cations which are then leached out of the
soil and lost to plants. Some of the ammonium ions are converted to nitrate
during nitrification (by aerobic soil bacteria); the process produces excess
H+ ions which acidify the soil (causing earthworms and other soil organisms to
die or desert the area). (For an excellent description of cation exchange
capacity, see Widdowson's Towards Holistic Agriculture: A Scientific
Approach.)"
That's a big reason why organic agriculture which focuses on building up
organic matter in the soil (which increases cation exchange capacity) is
better for soil health (and human health too, as the plants are better fed).
That's reflected in the article when it describes two lumps of soil put on
wire mesh that behave differently -- one falling apart as dust (from lack of
organic matter and so not much CEC) and one clumped together (more organic
matter and CEC).
Wish I had time to bring that Delphi app to the web as a JavaScript app... And
improve it further.
I don't know the exact numbers to completely quantify this, but I suspect poor
farming practices on the US prairies that have reduced (in some places) six
feet of topsoil to six inches of top soil have released a vast amount of
carbon from lost organic matter into the air and contributed to climate
change.
~~~
roel_v
Does your model support root nodule nitrogen fixation? I've been looking for
simulation software to estimate optimal levels of nitrogen fixers, but I
didn't find any comprehensive models that included this. I didn't look at your
model for it though; although I _did_ come across it several years earlier
when I was looking for plant growth simulations for another reason. In what
way(s) does it diverge from EPIC? EPIC & APEX are (widely) applied for policy
evaluation purposes (how much sense that makes is another matter, but let's
just accept reality for now); is your model robust enough for such things, I
mean comparable to EPIC? And does it still run on Windows 10? I tried to
install it but got some error that it failed writing to a registry key, and
then I didn't look any further.
~~~
pdfernhout
Most of the model source code is derived from EPIC (and a bit from SPUR which
was about rangelands, weather, and plant competition). The EPIC conversion
involved a person-year of painstaking work going through EPIC and creating
sensible names for the cryptic FORTRAN variables (which were also sometimes
reused multiple times with different meanings) and short function names as the
code was rewritten into C++ and then later Delphi. My wife -- who I met via
the PhD program in Ecology and Evolution I went to to try to learn enough to
write the simulator -- did most of that translation.
It's been twenty years, so I could not answer detailed questions about it of
the top of my head without digging into the code (and maybe not even then).
But the core parts of the soil percolation model should be very close to
EPIC's code and data. The source code for the soil models references the EPIC
equations and the related scientific literature.
The simulator was written under earlier versions of windows (Win 3.1 and 95),
and from around WinXP and later it seems the code that updates the registry
causes an error. Not sure how to easily work around that.
You can download the source here: [http://www.kurtz-
fernhout.com/GardenSimulatorSourceCirca1997...](http://www.kurtz-
fernhout.com/GardenSimulatorSourceCirca1997InDelphi.zip)
Or, I just put it up on GitHub right now for you: :-)
[https://github.com/pdfernhout/GardenSimulatorSourceCirca1997...](https://github.com/pdfernhout/GardenSimulatorSourceCirca1997InDelphi)
Here is the file you would want to focus on first, and it does mention
nitrogen fixation and nodules, but you'd have to make your own decision about
how useful that was to you as a reference:
[https://github.com/pdfernhout/GardenSimulatorSourceCirca1997...](https://github.com/pdfernhout/GardenSimulatorSourceCirca1997InDelphi/blob/master/ueq.pas)
Here are the lines to look first inside that file:
[https://github.com/pdfernhout/GardenSimulatorSourceCirca1997...](https://github.com/pdfernhout/GardenSimulatorSourceCirca1997InDelphi/blob/master/ueq.pas#L4741-L4764)
Remember that a lot of EPIC is empirically derived functions and values from
US soils in certain climates -- so it may not be totally applicable elsewhere,
even if it is a place to start.
And here is a 100 page programmer's manual: [http://www.kurtz-
fernhout.com/progmanlong.htm](http://www.kurtz-fernhout.com/progmanlong.htm)
I put our PlantStudio and StoryHarp code up on GitHub (which share some common
code with the garden simulator) and have been meaning to someday put the
garden simulator code there.
I spent a couple of months about a decade ago porting part of the code base to
Java and also Python which involved writing a Delphi parser and translation
tool, but the result is not a finished work. But the converted code for the
garden simulator is not on GitHub (yet). You can see some of the converted
plant drawing code here though:
[https://github.com/pdfernhout/PlantStudio](https://github.com/pdfernhout/PlantStudio)
I had wanted to help develop self-replicating space habitats and helping
people grow their own food better seemed like a good first step towards that
which both had short-term on-Earth benefits plus long-term benefits for space
settlement. We did this all on our own money from consulting and also credit
cards. When they were maxed out (~US$100K) we took unrelated programming jobs
at IBM Research and elsewhere to pay it all back on-time with interest -- it
took many years to get back to zero -- and we never got a chance to do that
much more with the simulator...
Our (at first shareware) PlantStudio software was a spinoff for breeding
virtual plants which got substantial interest from 3D modellers -- but even
there, we did not have time to keep improving it since we were both working
full-time the at IBM. PlantStudio was mainly my wife's project in response to
user feedback from the Garden Simulator that people liked playing with the
plant design part of it. We eventually made that free and then open source.
[http://www.kurtz-fernhout.com/PlantStudio/userssay.htm](http://www.kurtz-
fernhout.com/PlantStudio/userssay.htm)
And then we had a kid: :-) [http://www.kurtz-
fernhout.com/historyandfuture.html](http://www.kurtz-
fernhout.com/historyandfuture.html)
After that effort on our own, I'd get a bit annoyed I got when I'd watch NASA
and other places give big grants to people who then made proprietary software
with it. That motivated me to write essays like this back around 2001:
[http://pdfernhout.net/on-funding-digital-public-
works.html](http://pdfernhout.net/on-funding-digital-public-works.html) "As a
software developer and content creator, I find it continually frustrating to
visit web sites of projects funded directly or indirectly by government
agencies or foundations, only to discover I can't easily improve on those
projects because of licensing restrictions both on redistribution and on
making derived works of their content and software. ..."
But I can give kudos at the USDA ARS BRC and the EPIC team for developing
their code in-house and putting it in the public domain. The EPIC developers
(but not administrators) were annoyed a bit themselves at our own plan
originally to make proprietary software from their models, which was another
factor in our making that garden simulator effort FOSS.
Our hope had been to keep improving those models and getting more people
involved in that process online with a 2.0 version of the software as a shared
modelling environment. But our few small efforts to find funding to continue
in that direction were not productive. I guess we were just better software
developers than sales people. :-) Plus we have learned a lot since then about
a more incremental development style.
[http://gardenwithinsight.com/nsfprop.htm](http://gardenwithinsight.com/nsfprop.htm)
Anyway, I can hope that using that Garden Simulator software as an initial
reference point can help a next generation of soil scientists and free
software developers create even better software for research, education, and
applications from bringing soil anywhere back to life. :-)
~~~
roel_v
Thank you, very interesting. I feel your pain wrt converting Fortran models;
I've spend quite some time doing it for models similar to EPIC. In fact, about
7-8 years ago in a fit of hubris, we submitted a proposal as part of which I
would integrate EPIC into some other models, as a part of which I would have
to convert it to C++; IIRC I estimated about 6 months for it. TBH I do have
large libraries of simulation framework, so it would mostly be understanding
equations and converting them. Still, I'm happy we didn't win that proposal :)
------
beautifulfreak
Paul Stamets has studied the soil restorative effects of mycellium mushroom
and published a number of videos. In this Ted Talk at the 10 minute mark,
there's a demonstration of just how rapidly a patch of ground can be
transformed compared to other commonly used methods, even land polluted with
diesel fuel, which the mycellium rapidly breaks down into harmless compounds.
All the videos are fascinating.
[https://www.ted.com/talks/paul_stamets_on_6_ways_mushrooms_c...](https://www.ted.com/talks/paul_stamets_on_6_ways_mushrooms_can_save_the_world/transcript#t-452343)
------
kwhitefoot
The problem is not going to be really solved until we get rid of the idea that
a corporation can own land. The big agribusinesses don't value the land as
much as society needs them too so of course they don't look after it.
Land is a common resource and no one business should have unfettered control
of it.
~~~
bluGill
That is false. Big business cares about land more than the small farmers
It is the big farmers that care the most for the land. They are big enough
that they have collected the data and seen that investments in the land pay
off. When you have one field it is really hard to test for yourself how
different practices pay off. The university will tell you "go no till, after 7
years your yields will be bigger than if you till the land every year", but
small farmers generally think "yeah right, it works for your soils over there,
but here we have different soils and so that won't work". By contrast the
large farmers have enough fields that they are willing to try every new
practice in a couple places to see if it really works for them. The largest
farms are now able to scientifically show that they are building soil every
year.
Second, in Iowa corporations are banned form owning farms. There are
exceptions for seed companies and equipment manufactures, but those are
specific loopholes with limits to what can be done. I work for John Deere (but
of course do not speak for them), and we have to be very careful that the
places where we test our prototypes does not count as farms. (generally the
crop is destroyed before harvest - I don't know how the harvester division
does their testing though)
~~~
kwhitefoot
I was not contrasting big and small farmers. I was contrasting big business
behaviour with what society needs.
~~~
bluGill
True, but big business behavior is often closer aligned with what society
needs than small farmers.
------
sampl
Here's a great book on the subject, "New Roots for Agriculture" by Wes Jackson
(forward by Wendell Berry)
[https://www.amazon.com/New-Roots-Agriculture-Farming-
Ranchin...](https://www.amazon.com/New-Roots-Agriculture-Farming-
Ranching/dp/0803275625)
------
mmagin
As has been hinted at by other commenters, I think the big thing that's wrong
with modern industrial agriculture (including some "organic" agriculture) is
that it typically does not add carbon to the soil (via composted plant matter,
manure, etc) and it also unnecessarily disturbs the soil structure, allowing
the organic carbon compounds in the soil to become excessively exposed to the
atmosphere where they'll break down or be eroded.
(No, I don't have specific sources for this, it's mostly a combination of what
I've read from the Permaculture folks and personal observation in my own
garden over the past 5 years.)
------
vram22
As a teenager, I had read this book called The Forest and The Sea, by Marston
Bates, which explains many of the fundamental principles of ecology that
underlie these issues.
[https://www.google.co.in/search?q=book+the+forest+and+the+se...](https://www.google.co.in/search?q=book+the+forest+and+the+sea&)
[https://en.wikipedia.org/wiki/Marston_Bates](https://en.wikipedia.org/wiki/Marston_Bates)
I thought it was a pretty good and informative book.
------
MisterBastahrd
We could probably simply compost the produce and meat that gets thrown away
from grocery stores and fix that problem. A moderate sized grocery store in a
small town is going to throw away a ton or two of compostable material a
month. This all goes into a landfill. Most of these stores are very good about
recycling dry paper waste... but do nothing about the rest of their waste sans
cooking oil.
------
Overtonwindow
Not likely, unless we turn away from corn and abusive practices. Farming has
become such a money-losing venture that the only way to survive is to increase
yield, and try to squeeze more out of the same acre of land. This, imo, leads
to abuse.
~~~
devmunchies
People consume too much meat and dairy, which requires lots of corn and soy
for feed. Thats one reason why corn and soy is so heavily subsidized.
~~~
kwhitefoot
Why does that make the production heavily subsidized? Surely the state doesn't
need to subsidize what is already very popular?
~~~
bluGill
The state has a different concern: making sure you have enough to eat. One
crop failure and people starve to death. We as a society have chosen to solve
this problem by subsidizing farming ensuring that there are more crops grown
every year than is strictly needed. As such farmers plant more crops than
people will eat. This ensures that in bad years there is still enough food.
You can argue that there is a better solution to the problem, but don't argue
against subsidizes without a different solution.
------
madshiva
Can half of America be given back to native American?
------
martin_a
Has anybody already tried to put Brawndo on the fields? I think it got
electrolytes, that should help!
------
alexnewman
Not until we figure out what's killing it
~~~
reefoctopus
> the main change from one year to the next was intensively planting more and
> more acres of corn and soy, churning up the soil and using ever more
> chemical fertilizers and herbicides to try and turn a profit.
| {
"pile_set_name": "HackerNews"
} |
From WikiChina - credo
http://www.nytimes.com/2010/12/01/opinion/01friedman.html
======
raghava
>>America’s politicians are mostly lawyers; not engineers or scientists like
ours
Is that so? /* Am really asking an honest question! */
A google_search("chinese politicians scientists"); seems to be a story by it's own, BTW.
| {
"pile_set_name": "HackerNews"
} |
This battery advance could make electric vehicles far cheaper - NicoJuicy
https://www.technologyreview.com/s/610792/this-battery-advance-could-make-electric-vehicles-far-cheaper/
======
demwitt
Anode is negative??? Guess that explains hole flow....
| {
"pile_set_name": "HackerNews"
} |
“Critical mass” vs “network effects” - olivercameron
http://daltoncaldwell.com/critical-mass-vs-network-effects
======
dm8
I do agree that Twitter's asymmetric model works. And Google + also have same
feature. I don't have to be "friend" with someone to follow them.
Having signed up on Orkut in 2004, and used that social n/w quite regularly
for ~ 4 years. People forget the beauty of Orkut. In someways they were ahead
of times -
1\. Privacy: Privacy settings were impeccable. In fact, it would notify you if
someone visited your profile too. So no more "stalking". Believe it or not,
Orkut never allowed search engines to index their pages.
2\. Communities: Facebook groups are quite popular now. But still, Orkut
communities in 2005 were better. They were malleable. You could turn them into
forums/boards for discussion. Group announcements. Group Polls etc. And most
importantly owners/mods had ability to make any content public/private with
simple switch.
3\. Testimonials: LinkedIn started with this "recommendations" feature. But
Orkut had "testimonials" since its beginning. It was fun reading testimonials
once in a while.
4\. Design: Orkut's design during initial years was the best any social
network could have. Simple and clean!
5\. Search: I've used majority of the social networks. Orkut's search engine
was simply the best. It's search engine in 2005 could easily beat FB's search
even today.
What led to Orkut's downfall? I've heard form Googlers that there was no
strong internal support to Orkut. In 2008 they started copying FB and it
became unusable since it had worst UX due to this. And last but not the least,
Facebook's Feed. Feed was game-changer for FB and it's eventual growth.
Edit: Grammar
~~~
dalton
You are correct about many of these points.
The other thing worth mentioning re:Google internal support is that Orkut had
some, um, early controversy:
<http://www.wired.com/techbiz/media/news/2004/06/64046>
------
kingsley_20
I resent the digs at Orkut. It was a great community - if you were Brazilian
or Indian. That Google chose not to run with it says more about their lack of
long term social vision and parochialism than about the health of the
community itself.
~~~
dalton
To be clear, it's not a "dig" at international users.
To speak from personal experience, the site that I was founder/CEO of earlier
in my career, imeem, was wildly popular in the Philippines and Thailand. At
peak, we were a top 20 site in the Philippines, according to Alexa.
We spent a lot of time adding country-specific filters to music charts,
comments, etc once tagalog and thai started seeping into every page of the
site.
We loved our foreign users, but from an advertising business perspective, a
user in southeast asia is worth a small fraction of a US or UK user. The
relative low value of developing country users to brand advertisers is the
primary reason sites like Orkut, Friendster, Hi5, etc ended up in the place
they are.
It's not a question of nationalism, it really does boil down the what the
advertising market is willing to pay. This is one additional factor re:why ad-
supported social platforms end up with mis-aligned incentives w/users...
~~~
kingsley_20
I would invest the same way (focus on users in developed economies) if it were
my startup - but Google isn't a startup. When you have two of the BRIC
economies sewn up in a social network, AND you have cash to stay for the long
game, I think you're doing your shareholders a disservice by not sticking it
out.
------
jfarmer
A slightly better article on the same topic from a few years ago:
[http://blog.bumblebeelabs.com/social-software-
sundays-2-the-...](http://blog.bumblebeelabs.com/social-software-
sundays-2-the-evaporative-cooling-effect/)
It's funny we couch it in such intellectual language. There's an everyday word
for this: Potemkin village.
<http://en.wikipedia.org/wiki/Potemkin_village>
Or, a thought experiment. What's more valuable? A social network with 10,000
people who are all at most two degrees of separation from everyone else in
real life? Or a social network filled with 10,000 people from around the
world, selected at random?
Could you even call the second thing a "social network?"
~~~
gruseom
"Potemkin Village" isn't about original communities leaving. A Potemkin
Village is a fake facade erected to hide the real thing and fool visitors.
~~~
caseysoftware
"Potemkin Village" is what the Reddit guys started with by making thousands of
accounts and sharing, commenting, etc. In that case, the fiction became
reality which I (assume) is incredibly rare.
~~~
woah
Wait, can we get a link? This sounds pretty epic, I haven't heard about it
before.
~~~
jfarmer
Just Google: "reddit fake accounts"
------
kbenson
In his bid to get more viewers of his blog, and thus more perspective signups
for join.app.net which he links to in every post, Mr. Caldwell has put out
more interesting articles on the social space than I've seen in a long, long
time.
App.net seems like an interesting experiment, and I support it in theory, but
don't really use much of social networks so haven't contributed yet. I think
I'm going to give him $50 just to see if he can sustain the same level of
output on his blog, as my own little experiment.
~~~
breckinloggins
I agree. It just goes to show you that marketing and self-promotion only make
you look like a sleazy used-car salesman when you have nothing interesting to
say.
------
russtrpkovski
The In the Plex book provides some insights into why Orkut failed:
1\. As Orkut increased in popularity, it was flooded with identity thieves and
Viagra ads.
2\. Google focused on rewriting Orkut's Windows-based infrastructure to scale
on Google's platform instead of improving the design and adding features
3\. Users bailed because of poor response time. Brazilians and Indians used to
slow Internet access so they were tolerant of the delays.
4\. While finishing the rewrite of Orkut, Facebook was starting to take off.
------
JVIDEL
I just want to say is funny how some people downplay Orkut for being full of
Brasilians and Indians when those are 2 of the most growing consumer markets
in the world.
You have companies all over the world fighting to get those markets, Apple
went as far as building a factory in Brasil to get a foothold there.
------
mrkrwtsn
It's really exciting to consider how Twitter fundamentally changes how we can
communicate in large groups. Essentially, through the use of hash tags,
Twitter has created a new conversation/comment stream that any one in the
world can be a part of. For example, while watching the Olympics, there are
several hash tags that show up on screen and allow everyone from celebrities
to random people talk about it. It creates a conversation that is not even
possible using other mediums. They're not doing social networking better,
they've created a new way to communicate. This changes mass media from being a
one-way conversation to a place where anyone can participate in the
conversation.
App.net simply can never do this as a result of it costing money. Since it
can't build a large user base of "regular" people, the data on App.net simply
won't be that interesting or very open. Sure it would be a cool service, and
for many people, particularly geeks, it might be nice. It could even be a
great medium to communicate with specific people, but it will never be as
useful as Twitter in the sense that it will never be able to fill the same
space as Twitter.
If there really is a problem with Twitter's business model that's causing cash
problems all they need to do is charge for API access. Twitter's data feeds
provide immensely valuable data about a large variety of issues.
~~~
te_chris
They do charge for api access. You have to pay for the firehose.
------
joe_the_user
I think what the author is talking about is the spamminess/internet-y-ness
that has crept into Facebook in the last few years.
But that is something that I think most Facebook users at least try to ignore.
The goodness and desirableness of Facebook happens despite this stuff rather
than because of this stuff. Facebook has been a place where a lot of people
like to come to chat with their friends (duh!). This kind of virtual tavern is
something that a lot of people enjoy. But the problem is that Facebook has
succeed so well at being that kind of place, that the limitations of being
that kind of place are showing; suddenly realize you just own the nightclub,
you're not the most popular person in the nightclub. And making grandiose
statements on the nightclub loud speaker isn't going to make you more popular.
\- Being the place where people talk to their friends does mean you can sell
people anything (they don't come to buy but to chat).
\- There are plenty of things that it's in people's better interests not to
share and sooner or later they'll figure that out - when they do, they don't
appreciate being previously mislead and get more closed about the entire
medium (it's interesting how the telephone produced a lot of same ).
\- And there are many reasons to step outside your circle of friends. And
completely outside is both easier and safer than any conceivable "multiple
circles" system.
Facebook's stuff lately has been butting-up against these limitation but not
overcoming them. I don't know these can be directly overcome with the "I will
monetize my efforts" approach and if they can't, it might be good.
------
nrmehta
Thought-provoking post. To me, one way to determine whether a system will have
network effects or anti-network effects is to ascertain how much of its usage
is driven by fashion versus utility. Take email as an extreme example of the
latter. It's valuable because it's so universal - but it's not fashionable at
all. It's a pure utility. So no anti-network effects (perhaps beyond spam but
those are less about #s of participants as behavior). I put Facebook in an
intermediate category where it's transitioned reasonably well from fashion to
a utility, though the folks that looked at it as fashion are now getting more
turned off by it. Indeed, the anti-network effect isn't simply about numbers -
it's about who is coming into the network and a lost feeling of exclusivity
(which honestly sometimes picks on very base human emotions) when the network
grows with certain types of people. I think twitter has moved further up the
utility value chain than facebook has so I'd posit it's less vulnerable to
anti-network effects (not to mention the asymmetric follow model that dalton
talks about).
------
Sniffnoy
I feel it is worth pointing out here that asymmetry is not original to
Twitter. Consider e.g. LiveJournal.
------
epaik
This effect seems to happen commonly among news aggregating site communities.
Digg used to be pretty cool when it was used largely by people excited about
the start-up/tech enthusiasts. As it became more popular, the user-base seemed
to devolve as the content started to cater to the LCD.
Reddit has done a good job combating this, with their implementation of
subreddits that focus on specific core user demographics. But most of their
largest subreddits have a dubious quality of users.
Hacker News seems to have the best quality of discourse/users at the moment,
but I attribute this to its relatively small user-base.
~~~
pooriaazimi
> _Hacker News seems to have the best quality of discourse/users at the
> moment, but I attribute this to its relatively small user-base._
50 to 100 thousand daily users ("users", not visitors) is not small by any
means!
~~~
dredmorbius
At Internet scale (~2 billion connected users) it's minuscule.
0.005% of all available users.
Within the United States, it would fall well below the 100th most widely
circulated print magazine, as a _monthly_ circulation statistic. I'll assume
that monthly stats are a few times higher than the daily usage metric, but
you'd still have to hit roughly 1 million to break into the top 100.
[https://en.wikipedia.org/wiki/List_of_magazines_by_circulati...](https://en.wikipedia.org/wiki/List_of_magazines_by_circulation)
From an advertising perspective, unless you're extremely focused in your
interest base (and there are markets of interest within the HN readership),
it's tiny.
------
pdog
I think Mr. Caldwell makes a convincing argument that there needs to be a
compelling (not ad-supported) alternative to Twitter. My question is this: Why
can't this alternative have a "free tier" that allows the average user to
access and use the service without paying and have additional features
available to those who pay for them?
In determining a payment model for app.net, it seems he's never addressed why
there isn't a free tier...
------
daemon13
Excellent, very well thought out post.
First time I saw the notion of diminishing effect of adding new users.
Would be great if author elaborated on various "how to" to mitigate this.
~~~
simondlr
I think one of the best ways to do this, is to keep the social system smaller
once it reaches critical mass. It sounds counter-intuitive, but hear me out.
New users that join once critical mass has been reached, will be able to
create their own graph and enjoy the social network in question equally to
when a person joined it 4 years ago (given the site is still the same in terms
of functionality). However, the person that joined 4 years will become bogged
by an ever increasing graph of connections to pages, friends, groups, history
etc that eventually undermine what made the site relevant to them in the first
place (ie Dalton's experience with Orkut).
So, just as in the real life, social relationships come and ago, a natural
decay has to happen that allows a person's graph to remain relavent. Currently
Facebook (and to a certain Google+) are doing it right. They filter. Heavily.
If you don't interact with the people from 4 years ago, you just don't see
them anymore on it.
------
simondlr
App.net's approach won't solve the problems that Dalton here talks about. Does
he have plans that will solve this?
------
NHQ
Social networking services and APIs are not the utility. The Internet is the
utility.
| {
"pile_set_name": "HackerNews"
} |
An attorney suing Uber, Lyft, GrubHub and a dozen California tech firms - jackgavigan
http://www.latimes.com/business/technology/la-fi-class-action-lawyer-20160124-story.html
======
100k
The most recent issue of Mother Jones also has an article about Liss-Riordan
and her employment law lawsuits. According to the article, she got her start
suing restaurants that were skimming tips from employees -- which Uber is also
accused of.
[http://www.motherjones.com/politics/2015/12/uber-lawsuit-
dri...](http://www.motherjones.com/politics/2015/12/uber-lawsuit-drivers-
class-action-shannon-liss-riordan)
~~~
SilasX
Oy gevalt! That again? It's the modern version of counting angels on a pin.
Uber said, "drivers get this percent from the fee, Uber gets this much". Uber
claimed "tip's included". Modern philosophers claimed this makes a difference
because the law prohibits taking a cut of tips.
But there is no difference! Any allocation of the fee can be rephrased as
being "with" or "without' a tip in such a way that the money flows are all the
same. There is no "fact of the matter" as to what part of the fee is a tip!
Any phrasing can be correct!
Let's say Uber took 25%. You can say that the fee breaks down as:
1) 25% to Uber, 50% driver payment, 25% driver tip
2) 25% to Uber, 75% driver payment, no tip
3) 25% driver payment, 75% tip to driver, which Uber takes a 1/3 cut off
(illegal).
If the law treats observationally equivalent situations differently because of
how they're labeled, that law is meaningless, and basically just taxing you on
angel pinheads. (I call the property of passing this test "nominal
invariance".)
(The exception of course is when a customer gives a cash tip on top of the fee
directly to the driver. But Uber definitely doesn't take a cut of that!
------
gpsx
And when it is all over I can see each driver getting a check for $2.37 and
Liss-Riordon getting a check for $60,000,000.00. (OK, this maybe a slight
exaggeration, but only a slight one.)
~~~
rayiner
In the Fed Ex settlement she won $223m for 2,600 class members. Even if she
gets a 1/3 cut that's, $60,000 on average per class member for mis-
classification over a seven-year period.
~~~
toomuchtodo
I assume that doesn't include back taxes and fines due to the IRS.
~~~
rayiner
Yeah, that's just the fund for claims from employees.
------
bluefinity
Uber is the world's most highly valued private company? Somebody better tell
Saudi Aramco.
~~~
mikeyouse
Or Koch Industries..
~~~
zzazzdsa
or Cargill, or Mars....
------
benbowden
If she does win the case then wouldn't Uber and Lyft simply give less of a
percentage of earnings per ride to their drivers to compensate for the change
of cost? Would Uber and Lyft make more if they had their drivers on a similar
model to a pizza delivery driver ($4.50/h + tips)?
~~~
toomuchtodo
> If she does win the case then wouldn't Uber and Lyft simply give less of a
> percentage of earnings per ride to their drivers to compensate for the
> change of cost?
Uber and Lyft would need to pay hourly wages, along with all of the associated
taxes due.
> Would Uber and Lyft make more if they had their drivers on a similar model
> to a pizza delivery driver ($4.50/h + tips)?
Uber and Lyft's entire business model is built on the independent contractor
model. I don't believe they could reach profitability in any scenario with
human drivers if they have to pay them as stipulated by IRS regulations.
~~~
SilasX
>Uber and Lyft would need to pay hourly wages, along with all of the
associated taxes due.
Not true. You can be an employee with a non-hourly pay structure. Just one of
many misconceptions batted around about the implications of driver
reclassification, along with (these aren't all false per se, just not-
necessarily-true):
\- Drivers would have to get the Uber-paid lavish health care plan that
developers there get.
\- Driver cash payments would remain the same and not be reduced.
\- Drivers would get fixed work schedules.
\- Drivers would value the compensation package that includes employee
benefits but has lower cash pay, over the compensation they get now.
\- Uber would have to provide the vehicles.
\- The economic incidence of FICA taxes would shift to Uber (not how economic
incidence works[1]).
Again, the employee/contractor distinction depends on a number of factors; you
can be classified as an employee without meeting all of criteria.
[1] Good explanation:
[https://www.reddit.com/r/badeconomics/comments/422av5/some_g...](https://www.reddit.com/r/badeconomics/comments/422av5/some_good_old_fashioned_101level_errors_on/cz73e8g)
~~~
toomuchtodo
I agree those are all things _that should happen_. But can Uber be profitable
in that configuration? I would argue not, but maybe they pull it off.
~~~
SilasX
My point was that the reclassification as employees does not imply that any of
those would be true (very unlikely for a few, false as a matter of law in at
least one).
You can't just assume that the change would achieve this state where workers
get strictly more benefits and Uber's profits are sucked out. You need to take
into account how much they can cut driver cash payments in that circumstance
(i.e. paying them via benefits), where the economic incidence of car costs and
FICA taxes currently lies, what the law says about piecework, etc.
------
Karunamon
One thing I never see addressed in these Uber stories is how, precisely, the
drivers got classified as employees.
The only test I'm aware of refers to things like set hours, dictated methods
of working, company equipment, payment, and so on[1].
Just by that those tests alone, I don't see how an Uber driver is
realistically anything other than a contractor.
So either a judge screwed up somewhere, or I'm really missing something. Would
anyone have some more information on the particulars?
[1]: [https://www.irs.gov/Businesses/Small-Businesses-&-Self-
Emplo...](https://www.irs.gov/Businesses/Small-Businesses-&-Self-
Employed/Independent-Contractor-Self-Employed-or-Employee)
------
eugenekolo2
Reminds me of Microsoft's contractor lawsuit.
[https://en.wikipedia.org/wiki/Permatemp#Vizcaino_v._Microsof...](https://en.wikipedia.org/wiki/Permatemp#Vizcaino_v._Microsoft)
[http://www.reuters.com/article/businesspropicks-us-
findlaw-d...](http://www.reuters.com/article/businesspropicks-us-findlaw-dont-
treat-c-idUSTRE53063S20090401)
------
secondtimeuse
Discounting the tripe "You go girl" tone of the article, there is no divine
law asserting that there ought to be only two forms of (W2/1099) employees.
The labor laws should change in tune with evolution in technology. However
given the current dysfunctional congress, and from experience with other
Patent/Immigration laws this won't happen any time soon. Had it been about
Patent/IP litigation and any other lawyer the tone of the article would be
different.
This is parasitic legal rent seeking at its worst, let's call a spade a spade.
Here is an WSJ article that calls for change in labor laws.[1]
[1] [http://www.wsj.com/articles/what-if-there-were-a-new-type-
of...](http://www.wsj.com/articles/what-if-there-were-a-new-type-of-worker-
dependent-contractor-1422405831)
~~~
zzalpha
_This is parasitic legal rent seeking at its worst, let 's call a spade a
spade._
Or, its someone fighting organizations profiting illegally by flouting labour
laws that have protected workers from corporate exploitation for decades.
But potato, potahto, right?
~~~
secondtimeuse
"Fighting organizations" is a rhetorical device used by lawyers to fool
general public and people like you.
The reality today is that there is a large lobby of litigators actively trying
to keep any change in labour/Patent laws from happening. [1]
I own no shares of Uber Inc. and any other companies involved in these
litigations. But the reality is that by framing this incorrectly as David (The
attorney) vs Goliath (Uber et. al.) fight the article is just pushing your
emotional buttons. At end of the day litigation is not going to magically
create jobs out of thin air. Uber will eventually shift to autonomous cars or
will go bankrupt or might end having chinese drive the cars via video
conference. It's easy to blame Uber for the mess that is the employer provided
insurance.
Its not the Uber which created that problem, its the legislative gridlock
which is at fault. But its cooler these days to hate Uber for all that ills
the hapless middle class in USA.
[1] [http://www.usnews.com/news/articles/2014/09/16/how-the-
tech-...](http://www.usnews.com/news/articles/2014/09/16/how-the-tech-lobby-
got-beat)
~~~
geofft
The way that inappropriate laws get fixed in the US is that new laws get
passed, not that people violate the laws that seem irrelevant to them. I have
no objection to Uber lobbying for laws to introduce a new class of employees
(and I have absolutely no objection to Uber or anyone else making life hard
for the taxi lobby). I do have a strong objection to Uber deciding to treat
employees in a way prohibited by law because they, on their own, think it
makes more sense.
"Legislative gridlock" is a weak excuse. Plenty of legislation gets through,
from PPACA (which had, and continues to have, widespread objection) to USA
FREEDOM (even if you claim PATRIOT's expiration was the result of "deadlock",
the replacement came a day later) to JOBS (specifically legalizing things that
startups wanted to do!) to allowing people to unlock their cell phones (not
really a Big Foo priority). If the people really want Uber and Airbnb -- which
they seem to -- why can't they just get a law passed? And why can't all these
innovative, well-funded startups figure out how to disrupt and fix something
as obviously dysfunctional as our political system?
My worry is not so much with these particular ways they're breaking the law;
it seems like this is probably reasonable (though I'd still like someone other
than Uber to consider it). My worry is with the loss of the rule of law, and
the precedent that we're not going to care about whether the law is followed.
It's certainly true that Uber et al. aren't the first companies to break laws,
but this seems like a qualitative change in what laws are being broken and
what the impact on society is, and a democratic society should be able to have
an opinion on it.
~~~
hollerith
>The way that inappropriate laws get fixed in the US is that new laws get
passed,
Fixed a lot of inappropriate laws, have you?
~~~
1stop
... It was a statement of fact.
I know how a plane flies without being a pilot.
Obvious troll is obvious.
------
la6470
Millenials are unknowingly signing up for slavery and throwing away all the
hard earned labour rights in the name of being more agile.
~~~
aggieben
...or simply trading those "rights" for the freedom to be responsible for
their own lives. One gives up a lot of freedom to be an employee. That
tradeoff might be worth it for some people, and not as much for others.
~~~
skrause
> _One gives up a lot of freedom to be an employee._
As an employee I can walk away from my job any time I want and just get
another. If I had my own business that would be _way_ harder.
Because of that I feel actually more free and independent as an employee. You
just need to make sure to have a good financial buffer so that
losing/switching a job won't hurt very much. Then your employer also can't
pressure you too much.
~~~
aggieben
I feel exactly the opposite: I'm independent now, and I can walk away from my
current gig without all that much disruption in my life because I don't depend
on an employer for benefits or what have you. While I'm not walking away, I've
got more flexibility than I might with an employer (depending on the
employer).
You're 100% right about having a buffer, though. That's a pretty immovable
prerequisite no matter what your professional situation is.
------
steven2012
I don't think they will win. Every single uber driver I talk to loves it. They
love that they can work whenever they want, that they can choose to work for
Lyft or uber, etc. I don't know how you can say they are anything like an
employee. There is no negative consequences for not working except less money.
~~~
toomuchtodo
> I don't think they will win. Every single uber driver I talk to loves it.
That's not quite how the law works. Whether you enjoy being subjugated or not
doesn't effect if the law can be enforced against the entity violating the
law.
~~~
steven2012
How are drivers being subjugated and what law is being violated. What evidence
is there that they are actually employees besides the fact that lawyers and
union activists want them to be?
~~~
toomuchtodo
> How are drivers being subjugated and what law is being violated.
Drivers are being paid as independent contractors. Under the current Uber
model, they are not independent contractors as defined by labor law (nor the
IRS). Ergo, Uber is in violation of both labor law and tax regulations; if
they are found to have violated IRS employee classification rules, they'll be
liable for back taxes, penalties, and officers of the company can be held
personally liable.
> What evidence is there that they are actually employees besides the fact
> that lawyers and union activists want them to be?
You must be blinded by some sort of belief that Uber is the victim here; my
apologies. Employee vs independent contractor classifications can sometimes be
difficult, but the gist of it is:
If you tell someone how to do the work, and you set the price, they're an
employee; if you give someone the work, they set their prices, and they have
control over how the work is performed, they're a contractor.
Guess which model Uber uses?
~~~
steven2012
You are wrong. They are independent contractors. They are not employees as
defined by current labor laws.
I think it is you that are blinded by your beliefs. They are not told how to
do the work. Each driver chooses when they want to work and how long they
work. They are free to work with whomever else they want, including other ride
sharing companies at the same time.
Uber is a marketplace that brings drivers and riders together. It's not an
employer because drivers have complete freedom.
~~~
timwaagh
although i think most people would agree with this the local laws apparently
say everyone who does something central to the core business of a company and
gets paid for it by the company is an employee. it's in the article.
~~~
pfarnsworth
Except for taxi drivers.
------
gnodar
It would have been nice if this article addressed the negative consequences of
these companies skirting labor laws. The only mention of this is here:
_" she alleges that these firms exert the kind of control that employers
would have over employees — without providing any of the benefits employees,
by law, are entitled to."_
But it doesn't explain what specific benefits are being withheld from
employees, so I don't know what bad thing she is trying to prevent, or the
magnitude of the problem, if there really is one.
~~~
100k
W2 employees have all kinds of protections that 1099 contractors don't. Paid
sick time, FMLA leave, retirement plan contributions...A big difference is
that 1099 contractors must pay their own self-employment taxes (15%) to cover
Social Security and Medicare whereas W2 employees have half of that paid for
by their company. (Economists would say that comes out of wages, but it still
means $15/hour W2 is not directly comparable to $15/hour 1099.)
~~~
ProAm
>still means $15/hour W2 is not directly comparable to $15/hour 1099
of course not that is why contractors get paid more than salary employees. If
contractors dont ask for more money per hour then its their own fault.
~~~
toomuchtodo
Can you show me how "independent contractor" Uber employees can ask more per
hour?
~~~
zzalpha
Which is, incidentally, one of the points this case will hinge on. Being able
to set your own rates is one of the key differentiators between contract and
employee labour, and Uber drivers clearly do not have that ability.
| {
"pile_set_name": "HackerNews"
} |
Bump stocks are turned in or destroyed as ban takes effect - oblib
https://apnews.com/ea1b1c1b13194118b83a1f0d4aa08a2a
======
oblib
"Anyone in possession of a bump stock from now on can be charged with a
federal offense punishable by up to 10 years in prison."
I may be wrong, but I don't think this is widely known right now. I live in an
area where there are a lot of gun owners and "AR" type rifles are one of the
most popular among those who love to shoot guns. I'm sure quite a few own bump
stocks, but not at all sure they know they need to get rid of them.
------
sarcasmatwork
I'm keeping my rubber bands tho.... Are they going to ban rubber bands now?
Dumbass law that does nothing!
[http://www.youtube.com/watch?v=m5XzQ1BS7gU&t=0m25s](http://www.youtube.com/watch?v=m5XzQ1BS7gU&t=0m25s)
[http://www.youtube.com/watch?v=lJ0jTMLK9jI&t=0m18s](http://www.youtube.com/watch?v=lJ0jTMLK9jI&t=0m18s)
~~~
oblib
As I said, I live in an area where guns are very much a part of the culture.
Hunting is big here, and so is shooting for fun.
76% of my neighbors voted for Trump, and they're very open and vocal about
that and their 2nd Amendment rights.
I don't personally own a gun and very rarely shoot them. I don't hunt either,
but I don't have any fears of or animosities for those who do.
But they've been completely silent on this on FB. And looking back, with all
the noise from Kavanaugh to the Mueller report this issue has been buried by
the media, and that 10 year potential prison sentence has too, and that really
bothers me.
I don't know what to make of that. I don't know if they're uninformed or not
willing to criticize Trump or why they're so silent. They've been very open
about their right to own firearms in the past and the right to own a bump
stock.
| {
"pile_set_name": "HackerNews"
} |
Statically Checking Web API Requests in Atom - allthingsapi
http://www.apiful.io/intro/2016/11/30/ide-specification-checking.html
======
krsyoung
All the more motivation for API Providers to publish their specifications so
that IDE integrations like this are effective!
| {
"pile_set_name": "HackerNews"
} |
Free O'Reilly Books - Cieplak
http://oreilly.com/openbook/
======
olefoo
Managing Projects with Make 3rd edition
<http://oreilly.com/openbook/make3/book/index.csp>
This is the definitive reference to the software that lifts you from writing
software to building software systems.
See also <http://bost.ocks.org/mike/make/> for why it's still a useful book,
27 years after the first edition. Compare that to most of the technical books
you own; most of which were hopelessly obsolete by the ripe age of 27 months.
~~~
pjmlp
Actually I find it quite sad.
It means many developers are doing software in 2013 as if their main system
was a System V one, stuck in 1977.
~~~
olefoo
Not quite, a linux system of ~2010 has several advances over a Unix system/V
from the late 1970's it's a late 1960s muscle car compared to the Model A of
PDP-11. Same basic technology under the hood, but refined and much better
understood.
Most of the "advanced" programming environments look very nice but fail to
meet the needs of real world usage; where you have to talk to other systems
and get dirty doing it.
------
hkmurakami
_> Free as in Freedom: Richard Stallman's Crusade for Free Software_
<http://oreilly.com/openbook/freedom/index.html>
I'm familiar with the general gist of the FSF's philosophies but I had never
really sat down and read an in-depth write up of the importance of Free
Software, so I'm looking forward to reading this :)
~~~
AndreasFrom
I found it good and think you can look forward to reading it.
~~~
hkmurakami
Thanks! Just finished reading the first chapter and I found it to be
surprisingly well written.
------
bstpierre
> Through its Open Library project, the Internet Archive is scanning and
> hosting PDF versions of our open books.
_scanning_?? I would have thought that O'Reilly could give text/source to the
Internet Archive that could be massaged into a better quality output product.
(And allow formats other than just PDF -- text/epub/mobi/etc.)
~~~
bluedino
I wouldn't be surprised if the originals are lost.
------
bravura
There is also _Learning JavaScript Design Patterns_.
It's an O'Reilly book, and it's under creative commons, but it's not on that
list.
You can find it here:
[http://addyosmani.com/resources/essentialjsdesignpatterns/bo...](http://addyosmani.com/resources/essentialjsdesignpatterns/book/)
------
hayksaakian
Does HN have any good picks from this list?
I see a lot of out of print books and books not about programming/software
development, so if there are any that someone could recommend from this
massive list I'd appreciate that.
~~~
koralatov
A lot of the stuff in it is out of date, but `Unix Text Processing' is a great
read, if only to get a feel for the concepts and ideas.
~~~
D9u
That title caught my eye also. Not much difference between Unix text
processing then, and now.
------
zimpenfish
Grief, I had dead tree versions of the XView books back in 1993. Back when
dealing with X was Proper Work. None of this GNOME bullshit.
~~~
adrianhoward
Yeah - doing X work was "my job" for a few years in the early nineties. The
various O'Reilly XLib/Xt books were a godsend. Still have 'em somewhere in the
garage.
~~~
prakashk
I also have a few of those sitting in boxes in my garage. Every time I do some
cleaning-up, I debate (just for a second!) whether I should dispose of them,
but end up keeping them.
------
brudgers
I bought _The Whole Internet User's Guide & Catalog_ in early 1994. I had an
account at NERDC, a 9600 baud Intel modem, and connection time was
$0.01/minute. One month my bill was over $20.00.
That's a lot of Gopher and Usenet.
------
xradionut
I'm surprised that there isn't any Fortran guides or manuals on how to
maintain VT100 terminals on the list.
~~~
wglb
Just checked, they don't have no TECO manuals.
------
prostoalex
Open Feedback Publishing System from O'Reilly is another source
<http://ofps.oreilly.com/>
------
SkittlesNTwix
Many of these books are out-of-print for a reason - they're not really
relevant in todays tech landscape. There's a few gems in here though.
~~~
dogweather
And those are...?
~~~
jlarocco
My choices for the "good" ones are:
The PNG book: <http://www.libpng.org/pub/png/book/toc.html>
The GNU Make book: <http://oreilly.com/openbook/make3/book/index.csp>
The Subversion book: <http://svnbook.red-bean.com/>
The Cathedral and the Bazaar: <http://www.catb.org/~esr/writings/cathedral-
bazaar/>
And I haven't read it, but I would guess "Making TeX Work" is still relevant:
<http://makingtexwork.sourceforge.net/mtw/>
------
Aloha
I've found Unix Text Processing (<http://oreilly.com/openbook/utp/>) to be
very very helpful when trying to some data processing I would normally do in
excel.
------
DigitalJack
It says that Archive.org is producing pdfs of these books, but I'm not having
any luck finding the Managing Projects with Make as a pdf. Anyone else see it?
EDIT: I misunderstood, it's at archive.org's openlibrary project:
[http://openlibrary.org/works/OL3823216W/Managing_projects_wi...](http://openlibrary.org/works/OL3823216W/Managing_projects_with_Make)
------
progrock
I was excited to find one book as html broken into chapters, but the others
are in various formats - there isn't much consistancy - which makes it
difficult to read them, or write my own glue code - to get them onto my
e-reader.
------
dfc
The list of out of print books is twice as long as those still in print.
------
jjacobson
Oh man, a book on Mason! That takes me back to some good old Perl days.
------
jasongaya
Good
| {
"pile_set_name": "HackerNews"
} |
Pyresto - A general REST based ORM for Python - berkerpeksag
http://pyresto.readthedocs.org/en/latest/index.html
======
alpb
This would be great library -- only if they begin to support a wide range of
commonly used APIs. Idea is good, so should be the execution.
------
gokmen
Nice. i think to use it my django projects.
------
embrangler
Seems useful!
------
fka
Awesome!
| {
"pile_set_name": "HackerNews"
} |
For Bono and U2, Apple iTunes Partnership Finally Hits a Wrong Note - NaOH
http://www.nytimes.com/2014/11/10/business/media/for-bono-and-u2-apple-itunes-partnership-finally-hits-a-wrong-note.html
======
gph
This is perhaps a bit off-topic but,
>after all, the company is fresh off a hack that allowed strangers to steal,
view and share nude photos of famous actresses from iCloud accounts
Why do people still parrot this line? Unless I missed some later revelation,
this was barely even Apple's fault. They may have had some subpar security
practices, but it's not like their system was utterly compromised like this
makes it sound.
I'm not an Apple fan, but they don't deserve the ignorantly parroted line that
they let celebrities phones get compromised. And I would especially expect
more from the New York Times. That statement is almost libel.
~~~
akamaka
If the claims that they ignored warnings are correct, I would indeed lay most
of the blame on Apple:
[http://iphone.appleinsider.com/articles/14/09/25/researcher-...](http://iphone.appleinsider.com/articles/14/09/25/researcher-
accuses-apple-of-ignoring-icloud-brute-force-attack-for-6-months)
It may be the case that celebrities chose poor passwords, but how can you
blame them? Did Apple enforce strong passwords? Did it allow an excessive
password retry rate? Did it fail to follow up on warnings from security
researchers?
Unless the answer to each of those questions is "no", it is entirely fair to
blame them.
~~~
gph
I suppose what mostly bugs me is using the word hack. Calling something that
appears to be targeted social engineering a hack seems wrong to me. I guess
the definition of hacking has been rather fluid in recent years. Course that
word has been redefined and misused for a very long time so I guess I
shouldn't be surprised.
~~~
transpy
If you can fire up the Task Manager in windows, you are considered a hacker in
my circle of friends.
------
adventured
"It took nearly 30 years for “The Joshua Tree,” the 1987 album that was U2’s
breakout ticket to megastardom, to reach 30 million people."
That's a bit disingenuous. More people than that would have heard all the
major songs off of Joshua Tree on the radio and on MTV in one single market -
the US - in just the first few years. U2 was everywhere from 1988 - 1995. It's
very likely that college radio stations alone ended up playing the entire
Joshua Tree album for 30 million people in the US over the first decade of its
release.
~~~
PsychoPenguin
Yeah, you can't compare actual album sales with free listens.
------
EarthLaunch
I liked his answer. Transcript:
Q: Can you please never release an album on iTunes that automatically
downloads to people's playlists ever again? It's really rude.
A: Uh, oops! Um, I'm sorry about that. I had this beautiful idea. Got carried
away with ourselves. Artists are prone to that kind of thing. Drop of
megalomania. Touch of generosity. Dash of self-promotion. And, deep fear that
these songs that we poured our life into for the last couple of years mightn't
be heard. There's a lot of noise out there. I guess we got a little noisy
ourselves to get through it.
~~~
joering2
Bono is a hard-core businessman, not an artist.
This is a guy who raised to fame on giving fundraising concerts to help poor
children in Africa, and himself donated ZERO dollars out of 1.7 billion he
made on Facebook stock.
God only knows what deals has been made behind scenes U2 vs Apple.
Edit: I stand corrected: first and foremost, he's a hard-core businessman,
THEN an artist.
~~~
pbreit
Sorry, still clearly an artist first. Perhaps even philanthropist would be
higher than "hardcore businessman".
And Bono made way less than $1.7b on Facebook. Probably well less than $100m.
Possibly less than $10m.
Simple downvote.
~~~
aaronbrethorst
Some math: [http://fortune.com/2012/05/18/no-facebook-did-not-make-
bono-...](http://fortune.com/2012/05/18/no-facebook-did-not-make-bono-worlds-
richest-musician/)
So, again, at best Bono gets $43 million.
Or, in other words, just more than Britney
Spears will make for two years of judging
The X Factor. Let alone Paul McCartney’s
reported $1.04 billion net worth. Clearly
Facebook has been good to Bono, but not
nearly as good as is being portrayed…
------
logicalman
It would have been amazing if they released the album for free but people had
to download it. By making it mandatory, they showed they were very tone deaf
and ruined the promotion.
------
MCRed
Nobody seems to talk about how much Apple paid U2 for the right to give the
album away for free. I suspect that U2 may have made more money from this
album than they did from the last-- and that's just in the free period. (after
some amount of time it goes back up to normal price.) I bet even after it goes
up to normal price it will do better due to the publicity of being free.
I don't think Apple got the album for free. :-)
All in all, I think it was a great deal. I didn't get the album pushed on me--
I went and chose to download it from iTunes-- and I think the "album as
promotion for larger brand" method is kinda win-win. It's not relevancy U2 is
chasing but awareness, and that's the trade they made with Apple. That plus
bags of cash.
~~~
userbinator
> I don't think Apple got the album for free. :-)
In other words, it wasn't exactly pro-Bono. :-)
_I didn 't get the album pushed on me-- I went and chose to download it from
iTunes_
Many people did get the album automatically downloaded, which is really what
angered them, and not the fact that U2 is giving one away for free.
------
NaOH
If a moderator thinks it's worthwhile, the article headline has changed to
Chasing Relevancy at Any Cost, Even Free.
~~~
jack-r-abbit
This is probably due to the bookmarklet[1] that just reads the document.title
from the page you are posting. It fills in the title automatically in the
posting page. It is quite convenient... but often ends up not producing the
actual title that is placed on the page. I believe this is the cause for a lot
of HN posts not using the article title but the html title instead. And then
people complain about the wrong title. And then mods make a call.
[https://news.ycombinator.com/bookmarklet.html](https://news.ycombinator.com/bookmarklet.html)
------
pbreit
I wonder if this would have blown over more if iTunes had some sort of "hide
album" feature from the get go? To achieve their distribution objective, I
think it had to be automatically added to libraries vs being a free
"download". Comparing to Taylor Swift's removing all her stuff from Spotify,
this all seems rather minor.
------
IgorPartola
I really don't get why people are this upset over this little stunt. I
remember when I bought my first iPod it came with a U2 song. Winamp came with
the "llama's ass" thing. Other players had their own promo songs. Now Apple
has taken it to the next level and pushed a song to you rather than sold it
with the device. It's a little weird, a little selfish, maybe even a little
desperate, but I wouldn't characterize it as anything but at most mildly
annoying. Who cares? Unless you ran out of room on your device and couldn't
take that one in a million picture because of it, what does it matter? I am
not defending it, just trying to figure out why anyone would give it more than
30 seconds of their time, to complain, etc.
~~~
gwillen
Because if you don't want them to take a mile, you'd better watch out when
they start taking an inch.
~~~
IgorPartola
What? Sorry, still don't get it. Are you saying that using a branded Apple
phone which you know they can completely control remotely is all good as long
as they don't push music you don't want to it? If so, this is probably the
last inch in the mile they are taking. There are lots of issues with how
mobile phones operate and even specifically how Apple does them, but if we are
doing the whole fight for our freedom thing, this is probably not the best
place to start.
~~~
rakoo
> which you know they can completely control remotely
That's the problem though -- people don't know it's remotely controlled, so
they didn't expect this. When you think of it, there is very little to remove
the notion that a Music app is not just a glorified mp3 player because the
whole system is different.
| {
"pile_set_name": "HackerNews"
} |
Yahoo! Pipes and the web as a database - Readmore
http://www.readwriteweb.com/archives/yahoo_pipes_web_database.php
======
Readmore
This is a really interesting idea, it would be cool to have an API for pipes
but I supposed you could really do the same thing locally by just scraping the
data sources. I'm pretty excited to play around with this.
------
eli
I bet Google really wishes they thought of pipes (to go with Google Base).
(Note: Google Base is one of the potential data sources in Pipes)
| {
"pile_set_name": "HackerNews"
} |
Why I think Tesla is building throwaway cars - Shivetya
http://syonyk.blogspot.com/2016/03/is-tesla-building-throwaway-cars.html
======
ryandrake
One of the things that makes a car valuable is having a healthy aftermarket.
It looks like, from this article anyway, Tesla is doing anything they can to
make sure there is no aftermarket for their vehicles.
To me, a car that you can't service yourself is worthless. A car that needs
the manufacturer's permission to activate is not your car--it's owned by the
manufacturer. And, when the manufacturer places a threatening call to the
"owner" after he tries to get diagnostic information from his own car [1],
well that's so far beyond crossing the line it's not even funny.
I think we're going to start seeing "jailbroken" Teslas soon after they start
falling out of their warranty period. I'm surprised it hasn't happened
already. You'd think that out of the thousands of people who have already
bought one of these cars, there might be one out there with both the skills
and desire to actually own what they paid for.
1: [http://gas2.org/2014/04/14/road-slightly-traveled-hacking-
te...](http://gas2.org/2014/04/14/road-slightly-traveled-hacking-tesla-
model-s/)
~~~
userbinator
_You 'd think that out of the thousands of people who have already bought one
of these cars, there might be one out there with both the skills and desire to
actually own what they paid for_
On the other hand, it could just be that those who want to really own their
cars would not consider buying a Tesla anyway, and those who have the skills
are too scared of the legal aspects. I think at the moment, electric cars are
still somewhat niche and don't really appeal to the demographic who would be
modding their cars. The aftermarket community for existing cars basically
doesn't care about emissions --- one of the biggest attractions of an
electric. As a bit of a car-geek myself, I'll admit that electrics are rather
"boring" and for the same reason I'm not so interested in the newer super-
computerised vehicles either; it's the noisy, smelly, smoky, aggressive,
obnoxious-mechanical-monster nature of petrol/diesel engines that's the really
"fun" part. Batteries, electronics, and motors just don't evoke quite the same
feeling.
~~~
Amezarak
At least for me, it's not about souping the car up, it's about doing repairs
and maintenance myself because a) it's cheaper and b) it's more convenient.
If I knew I was going to have to drive a car to the dealership anytime
something went wrong, I would not buy that car. It's a big hassle (especially
if the dealership is any distance away) and almost always outrageously
expensive for anything outside of warranty. And if it's something that I can't
do myself, I'd rather take it to a cheaper local mechanic I know and trust.
According to the article, Teslas only have service manuals available in
Massachusetts (and there only on an extremely expensive subscription basis),
no independent shops, and doesn't have a working OBD-II port. That sounds like
a nightmare to me.
Granted, it's way out of my price range anyway. ;)
~~~
mcv
Same here. We recently bought a second hand Prius at an official dealer
(because new is unreasonably expensive, we do care about emissions, and I
think we got some warranty from the official dealer). Half a year later, the
brakes need to be replaced. Turns out not to fall under the warranty, whereas
we think it's unreasonable to sell a car with brakes that need to be replaced
that soon. Repair at the official dealer is pretty expensive.
So my wife takes it to our old, trusty local mechanic, and their repairs are a
lot cheaper. I forgot if they could also advise us on whether this was
reasonable in the first place.
I think my mother also often ended up at an independent mechanic after getting
disappointed by official dealers. (My dad always drove leased company cars so
didn't have to worry about this stuff. I know nothing about cars (but I'm glad
my wife does).)
~~~
ufukbay
I bought a used car around 2 years ago and went to the dealer because of a
problem and was shocked when he informed me about (obviously after selling the
car) what everything doesn't fall under the warranty. It's probably easier to
say what falls under which is the motor and transmission. Otherwise they bring
the argument with wear parts which I can understand for the brakes.
It's unlucky that they sold you a car where the brakes were soon to be
replaced but they are really wear parts. However I was suprised to hear that
also most of the electrical stuff doesn't fall under warranty. I'm from
Germany so it might be different in other countries.
------
brandmeyer
> A lot of Tesla fans claim that electric vehicles are inherently superior,
> because with fewer moving parts, they'll be able to stay on the road
> basically forever - no piston rings to wear, no transmissions to fail, no
> oil to change.
There are at least two major components that "wear out" in power electronics -
capacitors and power transistors. Traditional vacuum-impregnated motor winding
insulation also has a wear-out mechanism.
Electrolytic capacitors have both an electrolyte breakdown and dryout at
extended temperatures and voltage. Film capacitors also have a (much slower)
dielectric breakdown. Power transistors have two wear-out mechanisms: one that
is based on thermal cycling of the wire bonds and one that is based on thermal
cycling of the solder between the transistor and direct-copper-bonded
substrate.
Datacenter-scale UPS addresses both of these with field-replaceable modules.
The main AC and DC capacitor banks are replaceable in advance of failure, and
power transistors are field replaceable in much larger power modules,
typically only after a failure.
Vacuum-impregnated motor winding insulation is typically not completely void-
free. The high dV/dt that a direct-connected inverter imposes on the windings
causes large repetitive voltage spikes across the winding insulation. The
voltage spikes trigger partial discharge in the voids, which in turn erodes
the insulation.
IMO, long-lived electric cars should at least have capacitor banks that are
schedule-replaced, and drive modules that are replaceable after failure. With
the level of diagnostics and history monitoring available today, we should be
able to replace both components in advance of failure as well.
Do electric cars have lower maintenance, longer life, and higher reliability
than ICE cars? Definitely, probably, and probably, respectively. But "lower",
"longer", and "higher" don't mean "zero", "forever", and "infinite".
~~~
georgefrick
I found your addition very interesting. But I think the "Tesla fans" referred
to, are referring to something different.
The Tesla vehicles are "missing" a lot of parts that rust, corrode, and cause
engineering challenges. One of the main ones behind the exhaust system. Speak
with a series of car mechanics and they'll invariably tell stories of cars
that never received an oil change until something fails. There are videos,
pictures, and documentation of Tesla being able to swap drive trains, etc.
Put together, Tesla is able to better protect the frame and body from
corrosion by separating it from the same parts that usually "Carry this
along". That's a lot of text to say they reduce the surface area and mass of
corrosion and failure prone parts.
This isn't to say I agree, but I find the information all fascinating (as a
car guy). The best way to make a car, in my mind; more serviceable is to
increase the protections from rust and corrosion. Otherwise a simple brake pad
ends up being an entire brake system upon repair attempt. In regards to
electronics; they can go in sealed compartments and be easily serviced. How
awesome. They can also just as easily be replaced by a superior
implementation.
Anyways, your post made me ramble a bit but I'm trying to determine if I agree
with the original post or not.
~~~
WalterBright
I have an 89 Ford. It has been parked outside in rainy Seattle for 20 some
years. Other than the exhaust system, it is free of corrosion. I find this
rather incredible. Ford has done a truly amazing job with corrosion
protection, unlike my older car which rusts when a cloud passes by.
I also have to compliment Ford on building a low maintenance vehicle that is
also cheap and simple to repair when it does go wrong.
------
qume
This is a good place to share this with geeks who may not be into cars: I
drive a 1994 Mercedes (W124 chassis). One of the most reliable cars ever made.
Simple to repair yourself. A TON of info available online for anything you
could want to fix.
Pretty much (probably 100%) of all parts on the car are available super cheap
as chinese replacements because the model was around for so long and so many
of them are still on the road (I just replaced the car window regulator -
normally a few hundred $$, got it on amazon delivered for $23).
Made to be serviced/repaired. Quite a bit of fun doing it too. You can pick
one up for $2k and it will probably do another 200k miles no problem.
And the best bit? FAR FAR more environmentally friendly than a new Tesla. I'll
leave that up to you to figure out ;)
~~~
Swizec
You should look up crash tests between cars considered safe in 1994 and modern
cars.
I saw one for two Renault Espace models. The old one was so crumply compared
to the new one, that the new one didn't even deploy airbags because there was
no need. Both got top safety ratings when new.
[https://m.youtube.com/watch?v=xQS-7heF-
og](https://m.youtube.com/watch?v=xQS-7heF-og)
~~~
qume
Oh, and one more thing. Go walk around the yard of a tow company. Be prepared
to feel sick.
You'll come away with the conclusion that the standard crash tests, which are
well designed for common accidents, are still just a small minority of serious
accidents.
And the most horrifying thing that I came away with is the number of wrecks
where there is 'car' where the passengers should be. Even in trucks and SUVs.
The strongest cars ever built historically are still the strongest cars on the
road, even though there have been some great innovations that they miss out
on.
This is just for fun really, not trying to make a point with it, but this is
an old Volvo destroying other cars:
[https://www.youtube.com/watch?v=R95yOXPoR_s](https://www.youtube.com/watch?v=R95yOXPoR_s)
~~~
userbinator
Volvos definitely have a well-deserved reputation; for many years, their
slogan was "Drive Safely", and they took it seriously.
Here's another video where the Volvo's passenger compartment doesn't even
change shape while the other car's is completely crushed:
[https://www.youtube.com/watch?v=Vt0oQsRvtWI](https://www.youtube.com/watch?v=Vt0oQsRvtWI)
Although a downside is that, as the joke goes, "a Volvo doesn't need a crumple
zone; it uses the other car." Not so good if the other car also happens to be
a Volvo...
~~~
kerberosg
That is only true if the other car is of the same era.
Verus newer cars the crumple roles are very much reserved
[https://youtu.be/qBDyeWofcLY?t=105](https://youtu.be/qBDyeWofcLY?t=105)
------
valine
This is very troubling to read. I can understand that tampering with an
automobile might pose safety concerns. I can also understand that Tesla is
trying to protect its brand. That being said, the fact that Tesla is
monitoring individual cars in a way that they can detect when you're used the
Ethernet port is seriously Orwellian. I can only imagine this will get worse
as cars become more autonomous.
~~~
zanny
The ability to potentially break your car has never stopped any other car in
history from having an accessible engine compartment.
This is basically in tandem with the John Deere story - the consequences of
proprietary software bleed into the physical world and cause an incredible
amount of difficulty for people who do not even recognize what the problem is.
Tesla can only get away with all this because of how digital the car is in the
first place.
~~~
ericd
Tinkering with an electric car when you don't know what you're doing will kill
you so much more easily than a gasoline car will. That probably has something
to do with it?
~~~
zanny
"Sticks a potato in exhaust pipe"
"Drives around car"
"Dies"
Alternatively, disconnect the steering column and drive off a cliff.
There are a thousand easy ways to kill yourself making uninformed
modifications to any motor vehicle, by its nature. Its a ton of steel that
goes up to a tenth the speed of sound. If anything, the reduced complexity of
electric vehicles gives you fewer vectors for wrongdoing to screw yourself
over. You can break any number of parts in a combustion engine to make it
fail, whereas in an electric vehicle all you really have is steering column +
drivetrain + battery pack.
~~~
ericd
It's much easier to intuit the risks from a mechanical danger than an
electrical one. It's the difference between breaking a mechanical linkage and
accidentally brushing up against a live terminal.
------
bri3d
The "paywalled workshop manual" requirements are common to every manufacturer.
The only reason service manuals are available for free online for other modern
cars is that they're ripped from the manufacturer's pay portal, not that the
manufacturer is supplying them out of the goodness of their hearts. And the
service prices are pretty much in line with other luxury cars at the price
point.
Not that that really defends Tesla, though. Cutting off an owner from dealer
parts supply because their car is salvaged is unprecedented as far as I know.
And the cutthroat attitude that every part of the car is a trade secret is
ridiculous.
I think the biggest challenge for Tesla when they release the Model 3 will be
scaling up their service network while scaling down costs. $70,000 car owners
are generally willing to pay $400-$800 every few years for a dealer service.
$30,000 car owners aren't. And for most manufacturers, scaling dealer service
is a franchise : they need to supply parts, training, and certification, not a
whole service department. For Tesla, it's a brave entry into a challenging
core business.
~~~
JupiterMoon
Do most manufacturers only supply manuals when legally compelled to?
~~~
burger_moon
If you pay for alldata or michelin ondemand you get access to all of that.
------
nraynaud
Interesting, I work in the wind turbine industry (at the margin, and since one
month, I guess I'm an expert), and it's the same, there are interesting
sensors and data everywhere, but everything is locked down, and as long as the
warranty runs, the owner of the turbine is at the mercy of a very reluctant
maker for every maintenance task. The owner can't use any of those very useful
sensors to assess the state of the turbine, he has to call external
consultants who will re-instrument the turbine with external sensors at great
cost, when they could have just downloaded the existing data from their office
to give a look at it.
~~~
brandmeyer
And then what happens when the mfr. goes out of business? For example, see
Clipper Windpower.
~~~
scblock
Specific to Clipper, the owner of the technology keeps enough money around to
keep rebuilding the crazy gearboxes for current owners, while other spares can
often be obtained directly from the actual component manufacturers. Third
party service organizations like EDF Services or UpWind keep them running for
you, or you can hire your own techs.
Depending on the contract the relevant design information may also put in
escrow in the event the manufacturer goes under and spares are no longer
available.
For comparison, Zond and US Windpower died more than a decade ago but the
owners are still keeping the machines going. It can be a challenge but it's
not the end of the world.
------
nkw
I'm glad someone wrote about this. I have a deposit on a Model X, and this is
the single largest issue that is making me lean towards not buying the
vehicle. I occasionally enjoy doing my own maintenance or repair on stuff I
own and my present vehicle (close to a Model X equivalent but dinosaur powered
and German) has been pleasant in that regard. There is nice fully functional
(though Windows) third-party diagnostic software available, the actual service
documentation is available to owners (for a pretty reasonable fee), there is a
bit of competition on parts price amongst dealers (though ultimately only
within a certain range as they still originate with one manufacturer) and I
haven't once felt like instead of owning the car I merely have a license from
the manufacturer to use it. I worry after the warranty expires that I will be
at the mercy of Tesla for any service and support, which is an unknown
quantity right now. I've seen the terrible spot a product owner can be left in
when a manufacturer decides (for whatever reason) that service and support are
now their primary profit center. Not only are you screwed in that your product
now costs a fortune to maintain, your product is now essentially worthless for
resale because everyone knows the cost to maintain and repair it makes it
uneconomical. (See, e.g. several private aircraft companies which went
bankrupt)
------
phkahler
This is dumb. Can you replace the tie rods, brake pads, tires? So long as the
regular maintenance items can be handled I don't see a problem. Electronic
parts on other cars are getting herd to replace too - they do things like
record the VIN code upon first use and refuse to work in a different car, all
in the name of anti-theft. Also, as people get excited about self driving
cars, safety becomes a huge concern. You have throttle, brakes, steering,
camera systems, radar, all working together to achieve that. You're not going
to be tampering with any of that stuff on any car in the near future.
So if regular maintenance items can be replaced, and body damage can be
repaired, I don't see the complaint.
~~~
mdorazio
Yes, basic maintenance like you describe is entirely possible to do on your
own or at any normal mechanic. Body work can be done at normal high-end body
shops as well, with the caveat that getting replacement panels from Tesla is
expensive and challenging due to their limited production capacity.
Source: Friend's Tesla recently needed some body work to repair a dented door.
------
pcarolan
This sounds a lot like the open vs closed system debate we had/(have?) with
computers. I'm glad that in my youth I could wrench on the internals of a PC
and I'm glad that in my 30s I never have to because my Mac 'just works'. Also,
this debate is older than I am: [http://www.amazon.com/Zen-Art-Motorcycle-
Maintenance-Inquiry...](http://www.amazon.com/Zen-Art-Motorcycle-Maintenance-
Inquiry/dp/0060589469)
~~~
loopbit
If you had read Zen and the art of motorcycle maintenance you'd known that it
has very little to do with actual motorcycle maintenance, apart of using it as
a tool to make its point.
~~~
wetmore
This is a kind of dickish way to reply. Yeah it's not the original point but
there is a discussion of this issue in it IIRC.
~~~
loopbit
It may have come across dickish, It was not my intention. I had no time to go
in more detail and just left it as a note.
As for the issue at hand, yes, it's mentioned nearly at the beginning of the
book, when the narrator is discussing the motorcycles each character has and
why they chose it, mentioning the two views[0]. If I recall correctly, there's
no discussion, it's simply there to give an example of the concept of quality
that the author is trying to define. Anyone thinking that the book has
anything to do with actual motorcycle maintenance (or worse, trying to use the
advice) didn't understood the ideas and concepts of the book.
[0] The tinkerer, open view, exemplified with an old motorcycle (of which I
don't remember the make) vs the "it just works", closed view, using a brand
new BMW.
------
tokipin
People used to repair televisions but at some point it became cheaper to just
buy a new one due to the tech/manufacturing being sufficiently evolved and
commoditized/cheap, as well as the issues involved with repairing more complex
circuitry.
Electric cars have the same potential, I think, because of their inherent
simplicity. That potential already seems clear given that battery costs will
keep falling.
~~~
seiji
VCR repair too.
The big thing nobody talks about (or some people even brag about) is how Tesla
records your entire driving history to improve their future products. It's
kinda creepy and you have no option but to obey if you want the Tesla
Experience.
Other companies are trying to "catch up" in this way too like how Google
Android Auto Car Integration _requires_ manufactures allow Google Android Auto
Car Integration to send live, real-time individual car performance data back
to Google HQ so they can also analyze it all for their own purposes.
There's basically no legitimate reason why a 3rd party music player app
requires your car to transmit real time acceleration data, sensor data, fluid
levels, and seat positions back to Google.
------
vvanders
I don't think things are as dire as he makes it out:
1\. Small amount of cars on the road so there's limited incentive for
aftermarket parts.
2\. People already do brakes/tires/suspension/etc. It's a car after all.
3\. I wouldn't want to get _near_ the powertrain. 425kw(~400V @ 1,000 Amps)
will kill you if you touch something that you shouldn't.
I think it'll be a bigger issue once we see the Model 3 on the road.
~~~
TD-Linux
Your computer power supply has a ~400 volt rail in it. Are you unwilling to
ever open a desktop computer?
The Tesla battery has contactors inside of it, so you'll only have 400V live
when the car is on. Additionally, assuming the HV is floating relative to the
chassis, you need to touch two spots at different potentials to actually get
shocked.
That said, it looks like this is an attempt to prevent service of a lot of
non-powertrain components, considering that the Tesla owner in the article got
a letter for connecting just to the ethernet port.
~~~
saulrh
> Your computer power supply has a ~400 volt rail in it. Are you unwilling to
> ever open a desktop computer?
If it's plugged in and turned on - yeah, sure, I don't want to muck around in
there. The thing is, my computer power supply:
* Can be completely physically disconnected from the rest of the computer
* _Doesn 't have a battery in it_
If I pull the plug on my desktop, disconnect the power supply, and maybe if
I'm being really paranoid touch a lamp to it just to be sure there isn't
anything trapped in a cap or inductor, I know that that 400 volt rail is
actually at _zero_ volts relative to anything near me. Batteries? Especially
power batteries that I can't guarantee are physically disconnected, and that
can't really be grounded because they're inside an insulated mobile platform?
It's more like looking inside a microwave oven or a CRT, and you're _damn
right_ that I don't open those up.
~~~
smileysteve
> Doesn't have a battery in it
Any work done on a car w/ airbags (the last 20 years) has had a risk of airbag
explosion with any localized short.
The Takata airbag recall means that many of these may shoot shrapnel at you.
And the original airbags were known for occasionally flinging phosphorous at
you.
Beyond that, Lead Acid batteries can be dangerous when the battery or the
alternator fails - that's not steam, that's sulphuric acid steam.
~~~
saulrh
I don't know why airbags aren't opto-isolated digital devices activated by
simple challenge and response over canbus (read a single byte off address 0,
write the same byte back to address 1 to trigger). I'd have expected
pyrotechnics to have been first on the list for conversion to digital.
------
dkhenry
This article is spot on, but the author fails to account for the fact that on
_most_ new cars, your in the same boat. Unless its a maintenance item, your
not going to be able to replace it with anything but the manufacture's
blessing. The biggest difference is there are a lot more maintenance parts on
a conventional car, so you have more of an opportunity to replace things. It
was my understanding that the only true maintenance part on the Tesla was the
wiper blades.
~~~
jonknee
> It was my understanding that the only true maintenance part on the Tesla was
> the wiper blades.
And the brakes / tires.
~~~
tclmeelmo
And the HVAC system. I don't know but wouldn't be surprised if the HVAC system
on Teslas, in addition to the cabin environment, had some responsibility for
the battery and motor thermal management too.
------
charlesdenault
If Tesla's longterm business strategy is to build a fleet of autonomous cars
that operate in fractional ownership/lease models, of course it makes sense to
build a car that has a <10 year product life cycle. They can iterate quickly,
release new versions, and not have legacy hardware on the market. If they use
a buyback program similar to Apple's it might make sense for their particular
demos.
Time will tell, and it will be interesting to see what the Model 3 has for a
warranty, considering it's targeting a much broader market than the Model S/X.
~~~
teacup50
Iterate quickly?
Hardware is not software. The environmental cost alone of building a new car
is outrageous.
In addition to which, the SV2.0 "iterate quickly" ideal turns consumers into
guinea pigs for half-baked and half-broken products that will just be updated
out from under them.
~~~
mdorazio
And yet Apple produces a new $500+ phone every single year, intentionally
leaving behind customers who are still using hardware more than 3 years old. I
would say that the software iteration business model is making inroads into
the hardware market as well, including in the automotive space. The solution
to your guinea pigs point is a lease model, in which customers get a new car
every two years to stay on top of developments. Or when autonomous cars are
available, don't own a car at all - outsource all the hardware upgrades and
maintenance to the manufacturer and pay for the service of getting from point
A to point B when you need it (ala Uber).
~~~
teacup50
What you're proposing isn't a good thing. It's an ugly, environmentally
unfriendly, anti-consumer model.
How many people are debt-financing their $800+ iPhone? How much value is that
extracting from people, and what are the opportunity costs for them?
What's the environmental impact of phones becoming nothing more than expensive
bricks after 2-3 years due to lack of vendor support, coupled platform DRM
that prevents re-use?
What happens when market choices disappear along with the very concept of
ownership?
This dystopian ideal of inescapable corporatism may be a commercially viable,
but it's not remotely ethical.
~~~
mchahn
> phones becoming nothing more than expensive bricks after 2-3 years due to
> lack of vendor support, coupled platform DRM that prevents re-use?
I have repurposed my old Samsung android phones around the house as displays
on the walls. They all have the net connection shut down and I use the wifi.
They all work great and I see no reason they won't work until the hardware
dies.
I know this is only one data point. Can someone describe how other models of
phones can become bricks?
Edit: People less weird than me can still use the phones like tablets are used
without a radio connection.
~~~
teacup50
> _Can someone describe how other models of phones can become bricks?_
iPhone's have a fully DRM'd trust chain, starting with the bootloader, which
is itself on-die and immutable.
Installing a new OS image requires online activation with Apple's servers,
which return public-key signed installation permission.
Unless there's a vulnerability that allows jailbreak, you're not installing
non-Apple-approved software on that device.
That's the future of the fully centralized/cloud-based 'software iteration
business model ... making inroads into the hardware market'
~~~
mchahn
Ah, I understand what you are saying now. Technically, not being able to
install new software isn't bricked since you can still run the old. I only run
the browser on my old phones so I didn't notice this.
------
sremani
Great article, very forward looking and constructive criticism. Tesla is a
young company with Silicon Valley ethos, it does not surprise me, they are
treating Cars like Software. Where you are licensed to use software but do not
own it and how that world view may or may not work.
I am just wondering since Volt is from Old guard, its chances are better
because the maintainability is a bit more traditional (but not all Volts can
be repaired at any GM dealership). We may need a different model for EVs and
PHEVs.
[http://www.voltstats.net/Stats/Details/1579](http://www.voltstats.net/Stats/Details/1579)
Logically it may extend to other EVs and PHEVs like Model S, but here is a
real world volt which crossed 300K miles (the driver has a long commute, its
kind of real world validation of longevity of EVs/PHEVs)
~~~
ams6110
_they are treating Cars like Software. Where you are licensed to use software
but do not own it_
Why do they sell the cars at all then? Why not just lease them?
------
pyb
After reading the article, really I don't think Tesla is offering particularly
worse conditions than any other manufacturer. Their 8 year guarantee is
actually pretty inclusive, and now it's transferrable as well. The lack of
indie garages is the only item in his list I agree with, but things could
change in the future, as the pool of ex-Tesla mechanics grows.
------
api
A lot of this revolves around the new business model of using the Internet to
lock everything down. Basically half your car, house, whatever will be in the
cloud.
~~~
jacquesm
I refuse to buy products like that. If it doesn't operate stand alone then you
can keep it.
~~~
awqrre
There should also be an easy way to disconnect your car from the network,
because apparently, newer cars are always connected and reporting on your
activities[1].
1\. [http://www.businessinsider.com/ford-exec-
gps-2014-1](http://www.businessinsider.com/ford-exec-gps-2014-1)
~~~
bane
Or visa-versa, let me tap into that data connection for free for internet
access.
~~~
awqrre
Most people probably would choose that option then, but either way, you should
have to opt-in for the data sharing (whether or not it includes free Internet
or other services...):
Example: 1\. Do you want to share data with us?* 2\. Do you want to share data
with us and get free Internet?* 3\. Do you want to share data with us and get
a free service service that requires data sharing (ie: ads as you drive past
businesses)?* 4\. None of the above.
* Position, speed, microphone, car weight, Wi-Fi devices detected, etc..
------
matt_wulfeck
why wouldn't an electric car be easier to service? A combustible engine has so
many moving parts, fuel pump, filter, oil changes, regulator, etc etc. an
electric car is just a battery and an electric engine, which is actually a
pretty old peice of technology.
I do concede that the battery is a pretty complex piece of engineering. My
fear is that DRM "authorized" replacements will become like the toner
cartridges of the future.
~~~
CalRobert
The article discusses the difficulty of servicing a Tesla at length. Perhaps
you should read it?
------
protomyth
How is "Tampering with the Vehicle and its systems, including installation of
non-Tesla accessories or parts or their installation, or any damage directly
or indirectly caused by, due to or resulting from the installation or use of
non-Tesla parts or accessories;" not a violation of Magnuson–Moss Warranty
Act?
~~~
arkem
There's an exception if you can convince the FTC that the product will only
work correctly with branded parts. Take a look at 15 USC 2302(c):
[https://www.law.cornell.edu/uscode/text/15/2302](https://www.law.cornell.edu/uscode/text/15/2302)
~~~
protomyth
Has that ever been applied to car parts?
------
greendesk
I remembered this story when reading the article:
A boy wants to repair his dad's printer. As he troubleshoots the problem, he
calls a repair shops with the information on the printer. The repair shops
gives him guidance on how to repair the printer on his own and sends the parts
for it. The boy asks: "Why would you do it? Would not you make more money by
asking me to have it repaired at the shop?" "Oh, but when people try to repair
it on their own they usually spend much more money after their attempted
repair."
I have been burned many times by car repairmen. A misdiagnosed or malice
repair is a very big nuisance. I rather trust official repairs than garage
shops. If I had a Tesla, I would lean towards using the official service.
~~~
protomyth
"I rather trust official repairs than garage shops."
Had a Chevy and took it in for an official repair on the recall. They didn't
do it correctly. Had it in the shop because the belt broke (not timing) and
they asked if it I had taken it in for the recall. I was a bit peeved to find
out the official shop had not only messed up the recall repair on the brakes,
they had actually broke some other stuff.
Took my Dad's Buick into Devils Lake to get the door repaired. Common problem
on that model, and the local repair shop (Harold's) decided ordering a $120
plastic part was all kinds of dumb, so he made an aluminum version of the
part. It never broke again.
Its about people and incentives. There are very important consumer protections
in not letting the manufactures control everything. I have seen bad
manufacture shops and good ones and good and bad independent shops. Its about
people.
If we can keep manufactures from controlling all repairs with decent
legislation, we might be able to keep a strong and healthy 3rd party repair
capability. Otherwise, its just one more thing we don't actually own and the
incentive is to build things that will break.
------
AndrewKemendo
So maybe this is a dumb question but does this mean that whomever builds an
"open" EV will win in the long run? My guess is not and people will just get
locked into their "platform" vehicle in the same way that you are locked into
Apple devices.
~~~
neffy
Not a dumb question at all. I would say that it means that there's a very real
business opportunity for anyone who wants to compete with Tesla and takes the
open route. Beyond that who knows, but the very fact that they're shutting
down analysis as much as possible (they probably don't really care that much
about hackers, it's the reverse engineering shops that all the major car
manufacturers run that would be their big fear), suggests that what they have
is easy to copy. Or reinvent.
History, I suspect, will be on the side of the battery makers.
------
tinhangliu
Putting a lithium battery on a traditional car doesn't make the mobility
industry more sustainable. Tesla's are still going to end up in car
graveyards.. To be sustainable, we need to rethink how cars are designed from
the bottom up. Especially to sustain the growth in car-as-a-service (i.e.
Higher usage rates) we need modular design to have replaceable and upgradable
parts, without throwing away what works.
That's why we created OSVehicle,the first open source electric vehicle
platform. www.osvehicle.com
------
al_biglan
Interesting, but Tesla is both just getting started and "feeling the space" in
the auto industry. They have taken pride in taking a different approach to
traditional car companies and I imagine some of the wording around the
Extended Warranty is simply being new and not copy-pasting examples from other
companies.
Also, Tesla isn't making cars for everyone (yet) but instead focusing on
expensive/luxury cars. Rather than compare against GM/Honda/etc. How do they
compare against Maserati/Aston Martin/etc.?
Finally, as a young company, it may indeed be their _goal_ to build cars that
last forever, but the first few generations they are still pushing the
envelope of (their) understanding. In this case, bringing ell cars back to
their repair centers may be the "right" way to build this experience into
their future automobiles.
So... "yeah, they aren't making cars that will last more than N years unless
you, as an owner, are prepared to sink a bunch of cash into achieving this" It
may be more interesting to watch the auto that replaces the Model S. Both in
terms of their timeframe for introducing new models (beyond expanding into
different classes of vehicles) as well as how they adopt what they learn into
more fundamental design changes. Thank you to all those cutting edge people
willing to buy Teslas now. I'll wait 5-10 years till they get mainstream and
keep my Honda and Toyota on the road for 250k miles :-)
------
norea-armozel
There's always been a push in the automotive industry to make parts in cars
that the average person can't replace or repair easily. If anything, this
makes more money for the automakers (like Tesla) because they can setup all
kinds of service licenses and the like at their leisure. And if a particular
product line gets too long in the tooth, then you just killed off any
authorized servicing and parts. Now you got an instant customer if they keep
thinking it's worth it. Especially if Tesla were to institute some sort of
trade in program that would be cheap to finance but great for PR especially if
it touts the recycling angle. Frankly, I'm surprised no one would think such a
possible outcome was going to happen. Elon's not dumb, he's a businessman
first and foremost. Telsa cars aren't a charity. You buy them to feel good,
they are nice fun cars to drive, then when the time comes you're likely to get
bored with it anyways and want to trade for the newest model because you're a
good little consumer, right?
------
lacker
None of this seems "throwaway" to me. It just means that rather than build a
product that ends up being repaired by a distributed army of mechanics, they
are going "full stack" and aiming to repair everything in-house. To me that
seems like the ideal system - some people like the author might enjoy
repairing their own cars, but I would rather not.
~~~
carlivar
Now imagine Apple got rid of independent repair shops (they are already
heading in this direction pretty much). There would be outrage, and there's
already unease with Apple's direction in these areas. Why does Tesla get a
pass?
~~~
x0x0
My phone and laptop have a much lower price and expected service life than a
$100k vehicle.
~~~
carlivar
What is the price and service life at which it becomes okay?
------
mhandley
If the resale value of an out-of-warranty Tesla ends up being essentially
zero, the new ones will start to look like a pretty poor investment. This will
impact Tesla's sales. You can be pretty sure that Tesla will rectify this
eventually if they want to stay in business in the face of emerging
competition from other electric cars.
------
mizzao
It seems like at least one of the problems mentioned here is going to be
common to many cars in the future: more and more of the vehicle will involve
software rather than hardware, and as such is less transparent to the end-
user. It's not just Tesla customers who will be dealing with this.
------
sklogic
Not sure singling out Tesla is fair. Pretty much all the modern (built in 21st
century) cars are far less serviceable and far less modular than they used to
be before. The military designs are the only exception from this unfortunate
trend, for the obvious reasons.
~~~
mcv
I've always loved the idea of the Citroen 2CV, which was famously easy to
repair (sometimes with some string and chewing gum), and trivial to modify.
But it's an old car and is not being made anymore, and no modern car really
seems to fit that niche.
------
callesgg
The first thing that hit my mind was that they are doing it the apple way,
apple is doing quite fine with its locked devices.
like most engineers I like to play with and explore my technical equipment but
for most people it is just a hasle.
~~~
soared
I had the same thought. How many people would ever even consider maintaining
their own car? I bet its insignificant in the face of Tesla's target market.
------
greggman
Given the cars have various levels of self driving it would seem like the
moment you mod your car Tesla would want nothing to do with you because you've
changed something that could cause a crash.
That seems in some way different from a non-self driving car. Of course you
should be able to do anything you want with your car but would it be
unreasonable if Tesla basically disabled all their software and services at
that moment? Basically making it clear if you mod the car they want no
responsibility in what happens when it's self driving.
------
rebootthesystem
Inherent issues with anything battery powered:
- I have 20 year old grid powered drills, saws,
routers, sawzalls, sanders
- They all work and in perfect condition
- Same period: Three sets of battery powered drills
- Technology changes: NiCd to Lithium
- Battery pack voltage/form-factor EOL
- Aftermarket batteries expensive crap
- Good motor, gearbox, chuck discarded
- Environmental impact of early EOL?
The Tesla scenario:
- Will they be around in 20 years?
- Will there be any parts for current cars?
- Will you have access to service manuals, software and information?
The battery packs:
- Technology and chemistry will evolve
- No reason to make packs with 20 year old tech
- Will Tesla guarantee replacement packs in 10 to 20 years?
- Could be vehicle lifetime limiting factor
- Shame to crunch a perfectly good chassis, motor, etc.
- Potentially significant environmental impact
Working on electric cars:
- Most people not qualified, even most techies
- 400~500 V DC systems are deadly dangerous
- Electric cars will be the domain of experts, not hobbyists
- High voltage, high power, high energy density
system can do horrific things in accidents
- Who wants to be the responsible party?
After market:
- Potential for advanced after-market companies
- More efficient, smaller motor controllers
- Smaller, lighter, more energy-dense battery packs
- On-board computers and entertainment systems
- Might not be viable market for another 20 years
- Tesla (and others) likely not interested in doing
this themselves, they want to sell new cars
Electric car market:
- In 20 years all makers will have electric cars
- Multiple models per maker, multiple choices
- Buying from established makers gives you
massive sales and support infrastructure
- As market grows Tesla might have trouble reaching scale
- Tesla has a 3 to 5 year window to become mainstream
- If they fail at that they might well become irrelevant
- Battery manufacturers (Panasonic, etc.) will support
large car makers
- Car manufacturers know how to make cars by the millions
- Ford made a million F-150 trucks last year
- That's just one maker and one model
- They have the factories, people, process and product know-how
- Electric cars far easier to build than IC cars
- Tesla might be reduced to the Ferrari/McLaren of the industry
Better for the environment:
- Nobody talks about/quantifies dirty battery manufacturing
- Nobody talks about/quantifies dirty battery disposal
- Nobody talks about/quantifies dirty electricity generation
- It's like leather: Process is dirty and disgusting
but the end product looks beautiful and clean and
nobody thinks about how it got there
- Where is reality of environmental impact of 100 million pure
electric cars when considering the entire chain of events
that leads to manufacturing, using and retiring one?
- I don't know the answer
- Point: Don't be too sure you are "clean"
- Maybe you are...by a little bit
In all, today, analytically, I don't think electrics make much sense yet. Good
for you if you are OK burning cash on one of these things. Thank you. I think.
The inflection point for this industry is 100% connected to better battery
technology. No other technology matters one bit. We know how to make cars,
electric motors, transmissions and electronics. We need better and cheaper
batteries.
The minute a new battery technology (super-capacitors?) emerges with twice the
energy in half the volume at half the cost we will have dozens of pure
electrics to choose from. The infrastructure will be built as soon as
companies can start making money with them.
------
micheljansen
A lot of this is not that uncommon for other car manufacturers as well. The
"Premium" warranty of a used BMW also depends on the car being serviced at an
authorised repairer. Yes, it's the manufacturer trying to be more of an
"integrated" service provider and keeping the resale value up, but it also
ends when the car gets older. Most of those cars the go on to lead a long life
with aftermarket parts and repairs.
~~~
ghaff
I think the question is how practical third-party service will be (by
individuals or independent garages). As you suggest, the common wisdom that
I've always heard is that, if you want to hold onto a luxury car past the
warranty/extended warranty timeframe, that's great and can be a fun and cost-
effective auto--but only if you're handy and willing to spend the time or have
an indie mechanic who you trust. Otherwise, dealer service will eat you alive.
------
imh
This seems to be part of a larger trend towards controlling the things we own.
Cell phones, tractors, cars, and I'm sure tons of other things are moving this
way, where they're trying to make it illegal to root/jailbreak/service your
own property. Cell phones seem to be trying to move away from ownership in
general. What's the solution?
------
ck2
So super-liberal-progressive Vermont doesn't have a "right to repair" law?
Interesting Mass. is the first.
Should be a federal law.
~~~
castratikron
I was delighted to read that a right to repair law exists in at least one
state. I've been working to get one passed here (MN).
------
deagle50
Lease and all the complaints go out the window. Why buy when battery density
keeps going up? Not to mention the autopilot features and other tech.
Model S well equipped lease is <$1000, why the hell anyone without f-u money
would shell out $100k upfront I'll never know.
------
kayman
I don't care to own the car. From my point of view, it's a service I want
access to, to get me from point A to point B. Tesla makes that process
enjoyable.
Because Tesla leveraged software, like an app, I want Tesla to handle the
updates for life of the car.
------
Johnnybe
And now I know for certain I will never purchase a Tesla. What a shame.
------
Spooky23
It's pretty easy.
They don't want an aftermarket for the cars because the batteries will wear
out, essentially cannot be replaced, and you'll see lots of Teslas in the side
of the road.
I still don't understand why these cars exist. You pay a premium that vastly
exceeds the fuel savings vs a comperable gasoline vehicle. The warm fuzzy
feeling associated with saving the earth is low value to me.
They also aren't magical machines that don't break. A guy on my campus bought
one about 18 mos one and it's been towed (presumably to NJ or Boston) 2-3
times. There goes the warm fuzzy feeling about saving the earth!
~~~
mikeash
Why do you say the batteries cannot be replaced? Swapping a battery literally
takes five minutes. The cost of a new one is high, but will likely come down.
As for why these cars exist, it's simple: they're awesome cars. They're
powerful and quiet and have advanced technology. Never mind environmental
concerns, not having to visit the gas station is just very convenient.
Not emitting (local) pollution is a nice bonus, but it's pretty far down the
list.
~~~
Spooky23
They can't be replaced because they are extremely expensive, and no mechanic
is going to touch these thing without manuals and tools.
~~~
mikeash
Expensive is different from "can't," and there's definitely one company whose
mechanics can replace the battery.
~~~
Spooky23
It's all about ROI. You can make a case for almost any conventional repair,
save a transmission or engine overhaul.
When a battery replacement exceeds the value of the vehicle, and the one
source of mechanics is incentivized to sell a new car, the economics will
never make sense.
~~~
mikeash
Much will depend on exactly what batteries cost in 10-15 years, or whenever
the current batteries start to fail.
If they still cost $25,000, then yeah, that's probably going to be a poor
value proposition.
If they cost, say, $5,000, then no problem!
If Tesla and others start selling ~$35,000 cars with 200+ mile ranges in the
next couple of years, then I think it's going to be closer to the latter
scenario. But it's hard to know for sure.
------
kuschku
This is an interesting topic.
And an interesting idea for a hack: Hacking a Tesla Model S to work without
any connection to Big Brother, eh, Tesla, I mean.
~~~
martin_bech
But you want a connection to Big Brother, you want free super charging, you
want software updates, you want free internet access and navigation, you want
the free Spotify Account.
My Car wouldnt have AutoPark, Summon, Traffic Aware Cruise Control, Lane
Assist, Spotify, Autopilot, 50 ekstra Horse Power and so on, without the
software updates the connection to Big Brother provides. (Euro Spec S85D)
~~~
dingo_bat
How is the extra HP related to the Big Brother connection?
~~~
sahat
I don't remember the details, but in one of the recent updates they increased
the performance at top speed and initial start (below 3 mph). Prior to that,
85D and 90D (all-wheel drive configuration) got a significant boost to its
0-60 performance via a software update.
Since all the hardware is controlled via a software firmware, they are able to
tweak the voltage supply of each motor to decrease or increase output
performance.
------
Animats
Just think of it as customer engagement. It's like calling slavery "job
assurance".
------
pravda
I don't think anyone who buys a Telsa for 100 grand cares the slightest bit
about being forced to pay overpriced dealer service rates.
And it's not like a 'worn out' Telsa is going into the car crusher. Every part
is going to be pulled from it and sold on eBay.
I look forward to being able to buy a Telsa motor for cheap on eBay. Maybe in
2026.
~~~
gambiting
"And it's not like a 'worn out' Telsa is going into the car crusher."
Well, it actually might. The article mentions it - if a car is deemed a "write
off" by the insurance company(because cost of repair is quoted as >50% of the
value of the car) then only Tesla can re-activate it. It's crazy, my dad used
to have a car repair shop any buy dozens of cars that were "written off" by
insurance companies, he would fix them, they would go through an official
check-up process to be allowed on the road and that was it. He never had to
ask Mercedes or Honda or Audi to "reactivate" their cars.
~~~
pravda
What happens to cars that are written-off and not bought by your dad or
someone else who wants to fix them up and get them back on the road?
They go into the car crusher, but only after every part with any value is
stripped from them.
(Yes, I agree that a functioning Telsa car is worth more then a bunch of Telsa
parts)
If Mercedes could prevent people from buying written-off Mercedes cars, fixing
them up and re-selling them, they certainly would!
Telsa can do this, and they have a phony-baloney reason for doing this
(safety! protecting the children!), so it makes sense for them to do it.
And also, this is good for Telsa-buyers. If I spend 100-large, or 70-large on
a Telsa, I don't want the hoi polloi to be able to purchase value-priced
Telsas!
It's a win-win-win. Telsa gets more money, Telsa-buyers get a more exclusive
brand, and hackers get cheaper Telsa parts on eBay!
------
njharman
Haters gonna hate and short sellers gonna drum up FUD.
~~~
wetmore
So you're saying this guy's blog post is part of a conspiracy to drive down
the price of Tesla stock?
------
gcb0
it's a $100+k car.
it's a luxury, anyway you look at it, not a necessity for anyone.
it's not the same as a car but the same as a money pit Lamborghini.
stop trying to make Tesla happen so hard, internet yuppies.
| {
"pile_set_name": "HackerNews"
} |
Ad slowdown finally hitting Google, too? Revenue estimates cut. - pakafka
http://mediamemo.allthingsd.com/20081110/ad-slowdown-finally-hitting-google-too/
======
josefresco
If Google had more inventory I'd buy it. For those of us that have mastered
our niche in AdWords Google is practically a money printing machine.
For others? Not so much. Maybe this will get rid of some of my pesky
competitors.
| {
"pile_set_name": "HackerNews"
} |
Pyrex - tosh
https://en.wikipedia.org/wiki/Pyrex
======
rini17
inbound: lamentations of USians that pyrex isn't borosilicate glass anymore...
1\. You can buy proper ISO 3585:1998 borosilicate glass kitchenware on amazon,
just under another brands (Boral, Simax).
2\. The borosilicate glass is softer than lime glass and thus prone to
scratching and subsequent catastrophic failure. With laboratory glassware this
isn't an issue as reagents aren't likely to contain sand grains.
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Show HN: PJDL v2.0 – Single wire data link - gioscarab
http://www.pjon.org/PJDL-specification-v2.0.php
======
gioscarab
Here the repo:
[https://github.com/gioblu/PJON/tree/master/strategies/Softwa...](https://github.com/gioblu/PJON/tree/master/strategies/SoftwareBitBang)
This is a totally software emulated single wire, multi-master data link
implemented in less than 200 lines of code, supporting direct pin to pin
communication with more than 50 meters range.
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Line Notify Client SDK – Lotify - NiJiaLin
https://github.com/louis70109/lotify
======
NiJiaLin
Lotify is my first client SDK with my friend, It support developer use LINE
Notify quickly,
I referenced line-bot-sdk-python tests which I think so good!
Welcome Issue or PRs if any problems :)
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