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Michael Levin: Biology, Life, Aliens, Evolution, Embryogenesis & Xenobots | Lex Fridman Podcast #325
that people can take that right. So one way is exactly what you just said to try to kind of
https://karpathy.ai/lexicap/0325-large.html#01:38:51.440
Michael Levin: Biology, Life, Aliens, Evolution, Embryogenesis & Xenobots | Lex Fridman Podcast #325
expand their expand their their their notions for that category. The other way people often go is
https://karpathy.ai/lexicap/0325-large.html#01:38:54.720
Michael Levin: Biology, Life, Aliens, Evolution, Embryogenesis & Xenobots | Lex Fridman Podcast #325
they just sort of define the term is if if if it's not a natural product, it's it's just faking,
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Michael Levin: Biology, Life, Aliens, Evolution, Embryogenesis & Xenobots | Lex Fridman Podcast #325
right? It's not really intelligence if it was made by somebody else, because it's that same,
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Michael Levin: Biology, Life, Aliens, Evolution, Embryogenesis & Xenobots | Lex Fridman Podcast #325
it's the same thing. They can see how it's done. And once you see how it's like a magic trick,
https://karpathy.ai/lexicap/0325-large.html#01:39:11.920
Michael Levin: Biology, Life, Aliens, Evolution, Embryogenesis & Xenobots | Lex Fridman Podcast #325
when you see how it's done, it's not as fun anymore. And and I think people have a real
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Michael Levin: Biology, Life, Aliens, Evolution, Embryogenesis & Xenobots | Lex Fridman Podcast #325
tendency for that. And they sort of which which I find really strange in the sense that if somebody
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Michael Levin: Biology, Life, Aliens, Evolution, Embryogenesis & Xenobots | Lex Fridman Podcast #325
said to me, we have this this this sort of blind, like, like, hill climbing search,
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Michael Levin: Biology, Life, Aliens, Evolution, Embryogenesis & Xenobots | Lex Fridman Podcast #325
and then and then we have a really smart team of engineers, which one do you think is going to
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Michael Levin: Biology, Life, Aliens, Evolution, Embryogenesis & Xenobots | Lex Fridman Podcast #325
produce a system that has good intelligence? I think it's really weird to say that it only
https://karpathy.ai/lexicap/0325-large.html#01:39:36.800
Michael Levin: Biology, Life, Aliens, Evolution, Embryogenesis & Xenobots | Lex Fridman Podcast #325
comes from the blind search, right? It can't be done by people who, by the way, can also use
https://karpathy.ai/lexicap/0325-large.html#01:39:41.680
Michael Levin: Biology, Life, Aliens, Evolution, Embryogenesis & Xenobots | Lex Fridman Podcast #325
evolutionary techniques if they want to, but also rational design. I think it's really weird to say
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Michael Levin: Biology, Life, Aliens, Evolution, Embryogenesis & Xenobots | Lex Fridman Podcast #325
that real intelligence only comes from natural evolution. So I hope you're right. I hope people
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Michael Levin: Biology, Life, Aliens, Evolution, Embryogenesis & Xenobots | Lex Fridman Podcast #325
take it the other the other way. But there's a nice shortcut. So I work with Lego robots a lot now
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Michael Levin: Biology, Life, Aliens, Evolution, Embryogenesis & Xenobots | Lex Fridman Podcast #325
from for my own personal pleasure. Not in that way internet. So four legs. And one of the things
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Michael Levin: Biology, Life, Aliens, Evolution, Embryogenesis & Xenobots | Lex Fridman Podcast #325
that changes my experience with the robots a lot is when I can't understand why I did a certain
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Michael Levin: Biology, Life, Aliens, Evolution, Embryogenesis & Xenobots | Lex Fridman Podcast #325
thing. And there's a lot of ways to engineer that. Me, the person that created the software that runs
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Michael Levin: Biology, Life, Aliens, Evolution, Embryogenesis & Xenobots | Lex Fridman Podcast #325
it. There's a lot of ways for me to build that software in such a way that I don't exactly know
https://karpathy.ai/lexicap/0325-large.html#01:40:27.680
Michael Levin: Biology, Life, Aliens, Evolution, Embryogenesis & Xenobots | Lex Fridman Podcast #325
why it did a certain basic decision. Of course, as an engineer, you can go in and start to look at
https://karpathy.ai/lexicap/0325-large.html#01:40:33.120
Michael Levin: Biology, Life, Aliens, Evolution, Embryogenesis & Xenobots | Lex Fridman Podcast #325
logs. You can log all kind of data, sensory data, the decisions you made, you know, all the outputs
https://karpathy.ai/lexicap/0325-large.html#01:40:40.160
Michael Levin: Biology, Life, Aliens, Evolution, Embryogenesis & Xenobots | Lex Fridman Podcast #325
in your networks and so on. But I also try to really experience that surprise and that really
https://karpathy.ai/lexicap/0325-large.html#01:40:45.840
Michael Levin: Biology, Life, Aliens, Evolution, Embryogenesis & Xenobots | Lex Fridman Podcast #325
experience as another person would that totally doesn't know how it's built. And I think the magic
https://karpathy.ai/lexicap/0325-large.html#01:40:52.320
Michael Levin: Biology, Life, Aliens, Evolution, Embryogenesis & Xenobots | Lex Fridman Podcast #325
is there in not knowing how it works. That I think biology does that for you through the layers of
https://karpathy.ai/lexicap/0325-large.html#01:40:57.840
Michael Levin: Biology, Life, Aliens, Evolution, Embryogenesis & Xenobots | Lex Fridman Podcast #325
abstraction. Yeah, it because nobody really knows what's going on inside the biological. Like each
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Michael Levin: Biology, Life, Aliens, Evolution, Embryogenesis & Xenobots | Lex Fridman Podcast #325
one component is clueless about the big picture. I think there's actually really cheap systems that
https://karpathy.ai/lexicap/0325-large.html#01:41:14.320
Michael Levin: Biology, Life, Aliens, Evolution, Embryogenesis & Xenobots | Lex Fridman Podcast #325
can that can illustrate that kind of thing, which is even like, you know, fractals, right? Like,
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Michael Levin: Biology, Life, Aliens, Evolution, Embryogenesis & Xenobots | Lex Fridman Podcast #325
you have a very small, short formula in Z, and you see it and there's no magic, you're just going to
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Michael Levin: Biology, Life, Aliens, Evolution, Embryogenesis & Xenobots | Lex Fridman Podcast #325
crank through, you know, Z squared plus C, whatever, you're just going to crank through it. But the
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Michael Levin: Biology, Life, Aliens, Evolution, Embryogenesis & Xenobots | Lex Fridman Podcast #325
result of it is this incredibly rich, beautiful image, right? That that just like, wow, all of
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Michael Levin: Biology, Life, Aliens, Evolution, Embryogenesis & Xenobots | Lex Fridman Podcast #325
that was in this, like, 10 character long string, like amazing. So the fact that you can you can
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Michael Levin: Biology, Life, Aliens, Evolution, Embryogenesis & Xenobots | Lex Fridman Podcast #325
know everything there is to know about the details and the process and all the parts and every like,
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Michael Levin: Biology, Life, Aliens, Evolution, Embryogenesis & Xenobots | Lex Fridman Podcast #325
there's literally no magic of any kind there. And yet the outcome is something that you would never
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Michael Levin: Biology, Life, Aliens, Evolution, Embryogenesis & Xenobots | Lex Fridman Podcast #325
have expected. And it's just it just, you know, is incredibly rich and complex and beautiful. So
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Michael Levin: Biology, Life, Aliens, Evolution, Embryogenesis & Xenobots | Lex Fridman Podcast #325
there's a lot of that. You write that you work on developing conceptual frameworks for understanding
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Michael Levin: Biology, Life, Aliens, Evolution, Embryogenesis & Xenobots | Lex Fridman Podcast #325
unconventional cognition. So the kind of thing we've been talking about, I just like the term
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Michael Levin: Biology, Life, Aliens, Evolution, Embryogenesis & Xenobots | Lex Fridman Podcast #325
unconventional cognition. And you want to figure out how to detect, study and communicate with
https://karpathy.ai/lexicap/0325-large.html#01:42:17.840
Michael Levin: Biology, Life, Aliens, Evolution, Embryogenesis & Xenobots | Lex Fridman Podcast #325
the thing. You've already mentioned a few examples, but what is unconventional cognition? Is it as
https://karpathy.ai/lexicap/0325-large.html#01:42:23.440
Michael Levin: Biology, Life, Aliens, Evolution, Embryogenesis & Xenobots | Lex Fridman Podcast #325
simply as everything else outside of what we define usually as cognition, cognitive science,
https://karpathy.ai/lexicap/0325-large.html#01:42:29.200
Michael Levin: Biology, Life, Aliens, Evolution, Embryogenesis & Xenobots | Lex Fridman Podcast #325
the stuff going on between our ears? Or is there some deeper way to get at the fundamentals of
https://karpathy.ai/lexicap/0325-large.html#01:42:34.880
Michael Levin: Biology, Life, Aliens, Evolution, Embryogenesis & Xenobots | Lex Fridman Podcast #325
what is cognition? Yeah, I think like, and I'm certainly not the only person who works in
https://karpathy.ai/lexicap/0325-large.html#01:42:41.440
Michael Levin: Biology, Life, Aliens, Evolution, Embryogenesis & Xenobots | Lex Fridman Podcast #325
unconventional, unconventional cognition. So it's the term used? Yeah, that's one that I so I've
https://karpathy.ai/lexicap/0325-large.html#01:42:47.440
Michael Levin: Biology, Life, Aliens, Evolution, Embryogenesis & Xenobots | Lex Fridman Podcast #325
coined a number of weird terms, but that's not one of mine like that. That's an existing thing. So
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Michael Levin: Biology, Life, Aliens, Evolution, Embryogenesis & Xenobots | Lex Fridman Podcast #325
so for example, somebody like Andy Adam Askey, who I don't know if you've if you've had him on,
https://karpathy.ai/lexicap/0325-large.html#01:42:56.960
Michael Levin: Biology, Life, Aliens, Evolution, Embryogenesis & Xenobots | Lex Fridman Podcast #325
if you haven't, you should he's a he's a he's a, you know, very interesting guy. He's a computer
https://karpathy.ai/lexicap/0325-large.html#01:43:00.880
Michael Levin: Biology, Life, Aliens, Evolution, Embryogenesis & Xenobots | Lex Fridman Podcast #325
scientist, and he does unconventional cognition and slime molds, all kinds of weird. He's a real
https://karpathy.ai/lexicap/0325-large.html#01:43:05.600
Michael Levin: Biology, Life, Aliens, Evolution, Embryogenesis & Xenobots | Lex Fridman Podcast #325
weird, weird cat, really interesting. Anyway, so so that's, you know, it's a bunch of terms that
https://karpathy.ai/lexicap/0325-large.html#01:43:10.640
Michael Levin: Biology, Life, Aliens, Evolution, Embryogenesis & Xenobots | Lex Fridman Podcast #325
I've come up with. But that's not one of mine. So I think like many terms, that one is, is really
https://karpathy.ai/lexicap/0325-large.html#01:43:15.280
Michael Levin: Biology, Life, Aliens, Evolution, Embryogenesis & Xenobots | Lex Fridman Podcast #325
defined by the times, meaning that unconventional cognitive things that are unconventional cognition
https://karpathy.ai/lexicap/0325-large.html#01:43:21.600
Michael Levin: Biology, Life, Aliens, Evolution, Embryogenesis & Xenobots | Lex Fridman Podcast #325
today are not going to be considered unconventional cognition at some point. It's one of those,
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Michael Levin: Biology, Life, Aliens, Evolution, Embryogenesis & Xenobots | Lex Fridman Podcast #325
it's one of those things. And so it's, you know, it's, it's, it's this, it's this really deep
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Michael Levin: Biology, Life, Aliens, Evolution, Embryogenesis & Xenobots | Lex Fridman Podcast #325
question of how do you recognize, communicate with, classify cognition, when you cannot rely
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Michael Levin: Biology, Life, Aliens, Evolution, Embryogenesis & Xenobots | Lex Fridman Podcast #325
on the typical milestones, right? So typical, you know, again, if you stick with the with the, the
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Michael Levin: Biology, Life, Aliens, Evolution, Embryogenesis & Xenobots | Lex Fridman Podcast #325
history of life on Earth, like these, these exact model systems, you would say, Ah, here's a particular
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Michael Levin: Biology, Life, Aliens, Evolution, Embryogenesis & Xenobots | Lex Fridman Podcast #325
structure of the brain. And this one has fewer of those. And this one has a bigger frontal cortex.
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Michael Levin: Biology, Life, Aliens, Evolution, Embryogenesis & Xenobots | Lex Fridman Podcast #325
And this one, right, so these are these are landmarks that that we're that we're used to,
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Michael Levin: Biology, Life, Aliens, Evolution, Embryogenesis & Xenobots | Lex Fridman Podcast #325
and and allows us to make very kind of rapid judgments about things. But if you can't rely on
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Michael Levin: Biology, Life, Aliens, Evolution, Embryogenesis & Xenobots | Lex Fridman Podcast #325
that, either because you're looking at a synthetic thing, or an engineered thing, or an alien thing,
https://karpathy.ai/lexicap/0325-large.html#01:44:10.560
Michael Levin: Biology, Life, Aliens, Evolution, Embryogenesis & Xenobots | Lex Fridman Podcast #325
then what do you do? Right? How do you and so and so that's what I'm really interested. I'm
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Michael Levin: Biology, Life, Aliens, Evolution, Embryogenesis & Xenobots | Lex Fridman Podcast #325
interested in mind in all of its possible implementations, not just the obvious ones
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Michael Levin: Biology, Life, Aliens, Evolution, Embryogenesis & Xenobots | Lex Fridman Podcast #325
that we know from from looking at brains here on Earth. Whenever I think about something like
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Michael Levin: Biology, Life, Aliens, Evolution, Embryogenesis & Xenobots | Lex Fridman Podcast #325
unconventional cognition, I think about cellular automata, I'm just captivated by the beauty of the
https://karpathy.ai/lexicap/0325-large.html#01:44:31.040
Michael Levin: Biology, Life, Aliens, Evolution, Embryogenesis & Xenobots | Lex Fridman Podcast #325
thing. The fact that from simple little objects, you can create some such beautiful complexity
https://karpathy.ai/lexicap/0325-large.html#01:44:36.880
Michael Levin: Biology, Life, Aliens, Evolution, Embryogenesis & Xenobots | Lex Fridman Podcast #325
that very quickly, you forget about the individual objects, and you see the things that it creates
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Michael Levin: Biology, Life, Aliens, Evolution, Embryogenesis & Xenobots | Lex Fridman Podcast #325
as its own organisms. That blows my mind every time. Like, honestly, I could full time just
https://karpathy.ai/lexicap/0325-large.html#01:44:53.120
Michael Levin: Biology, Life, Aliens, Evolution, Embryogenesis & Xenobots | Lex Fridman Podcast #325
eat mushrooms and watch cellular automata. Don't even have to do mushrooms.
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Michael Levin: Biology, Life, Aliens, Evolution, Embryogenesis & Xenobots | Lex Fridman Podcast #325
Just cellular automata. It feels like, I mean, from the engineering perspective, I love
https://karpathy.ai/lexicap/0325-large.html#01:45:06.880
Michael Levin: Biology, Life, Aliens, Evolution, Embryogenesis & Xenobots | Lex Fridman Podcast #325
when a very simple system captures something really powerful, because then you can study
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Michael Levin: Biology, Life, Aliens, Evolution, Embryogenesis & Xenobots | Lex Fridman Podcast #325
that system to understand something fundamental about complexity about life on Earth.
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Michael Levin: Biology, Life, Aliens, Evolution, Embryogenesis & Xenobots | Lex Fridman Podcast #325
Anyway, how do I communicate with a thing? If cellular automata can do cognition, if a plant
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Michael Levin: Biology, Life, Aliens, Evolution, Embryogenesis & Xenobots | Lex Fridman Podcast #325
can do cognition, if a xenobot can do cognition, how do I like whisper in its ear and get an
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Michael Levin: Biology, Life, Aliens, Evolution, Embryogenesis & Xenobots | Lex Fridman Podcast #325
answer back to how do I have a conversation? How do I have a xenobot on a podcast?
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Michael Levin: Biology, Life, Aliens, Evolution, Embryogenesis & Xenobots | Lex Fridman Podcast #325
It's a really interesting line of investigation that opens up. I mean, we've thought about this.
https://karpathy.ai/lexicap/0325-large.html#01:45:46.880
Michael Levin: Biology, Life, Aliens, Evolution, Embryogenesis & Xenobots | Lex Fridman Podcast #325
So you need a few things. You need to understand the space in which they live. So not just the
https://karpathy.ai/lexicap/0325-large.html#01:45:53.840
Michael Levin: Biology, Life, Aliens, Evolution, Embryogenesis & Xenobots | Lex Fridman Podcast #325
physical modality, like can they see light, can they feel vibration? I mean, that's important,
https://karpathy.ai/lexicap/0325-large.html#01:46:00.400
Michael Levin: Biology, Life, Aliens, Evolution, Embryogenesis & Xenobots | Lex Fridman Podcast #325
of course, because that's how you deliver your message. But not just the ideas for a communication
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Michael Levin: Biology, Life, Aliens, Evolution, Embryogenesis & Xenobots | Lex Fridman Podcast #325
medium, not just the physical medium, but saliency, right? So what's important to this
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Michael Levin: Biology, Life, Aliens, Evolution, Embryogenesis & Xenobots | Lex Fridman Podcast #325
system? And systems have all kinds of different levels of sophistication of what you could expect
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Michael Levin: Biology, Life, Aliens, Evolution, Embryogenesis & Xenobots | Lex Fridman Podcast #325
to get back. And I think what's really important, I call this the spectrum of persuadability,
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Michael Levin: Biology, Life, Aliens, Evolution, Embryogenesis & Xenobots | Lex Fridman Podcast #325
which is this idea that when you're looking at a system, you can't assume where on the spectrum
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Michael Levin: Biology, Life, Aliens, Evolution, Embryogenesis & Xenobots | Lex Fridman Podcast #325
it is. You have to do experiments. And so for example, if you look at a gene regulatory network,
https://karpathy.ai/lexicap/0325-large.html#01:46:33.200
Michael Levin: Biology, Life, Aliens, Evolution, Embryogenesis & Xenobots | Lex Fridman Podcast #325
which is just a bunch of nodes that turn each other on and off at various rates, you might
https://karpathy.ai/lexicap/0325-large.html#01:46:41.440
Michael Levin: Biology, Life, Aliens, Evolution, Embryogenesis & Xenobots | Lex Fridman Podcast #325
look at that and you say, well, there's no magic here. I mean, clearly this thing is as deterministic
https://karpathy.ai/lexicap/0325-large.html#01:46:45.760
Michael Levin: Biology, Life, Aliens, Evolution, Embryogenesis & Xenobots | Lex Fridman Podcast #325
as it gets. It's a piece of hardware. The only way we're going to be able to control it is by
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Michael Levin: Biology, Life, Aliens, Evolution, Embryogenesis & Xenobots | Lex Fridman Podcast #325
rewiring it, which is the way molecular biology works, right? We can add nodes, remove nodes,
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Michael Levin: Biology, Life, Aliens, Evolution, Embryogenesis & Xenobots | Lex Fridman Podcast #325
whatever. Well, so we've done simulations and shown that biological, and now we're doing this in the
https://karpathy.ai/lexicap/0325-large.html#01:46:57.920
Michael Levin: Biology, Life, Aliens, Evolution, Embryogenesis & Xenobots | Lex Fridman Podcast #325
lab, the biological networks like that have associative memory. So they can actually learn,
https://karpathy.ai/lexicap/0325-large.html#01:47:03.440
Michael Levin: Biology, Life, Aliens, Evolution, Embryogenesis & Xenobots | Lex Fridman Podcast #325
they can learn from experience. They have habituation, they have sensitization, they
https://karpathy.ai/lexicap/0325-large.html#01:47:08.960
Michael Levin: Biology, Life, Aliens, Evolution, Embryogenesis & Xenobots | Lex Fridman Podcast #325
have associative memory, which you wouldn't have known if you assume that they have to be on the
https://karpathy.ai/lexicap/0325-large.html#01:47:12.000
Michael Levin: Biology, Life, Aliens, Evolution, Embryogenesis & Xenobots | Lex Fridman Podcast #325
left side of that spectrum. So when you're going to communicate with something, and we've even,
https://karpathy.ai/lexicap/0325-large.html#01:47:15.840
Michael Levin: Biology, Life, Aliens, Evolution, Embryogenesis & Xenobots | Lex Fridman Podcast #325
Charles Abramson and I have written a paper on behaviorist approaches to synthetic organisms,
https://karpathy.ai/lexicap/0325-large.html#01:47:21.280
Michael Levin: Biology, Life, Aliens, Evolution, Embryogenesis & Xenobots | Lex Fridman Podcast #325
meaning that if you're given something, you have no idea what it is or what it can do,
https://karpathy.ai/lexicap/0325-large.html#01:47:26.080
Michael Levin: Biology, Life, Aliens, Evolution, Embryogenesis & Xenobots | Lex Fridman Podcast #325
how do you figure out what its psychology is, what its level is, what does it, and so we literally
https://karpathy.ai/lexicap/0325-large.html#01:47:29.600
Michael Levin: Biology, Life, Aliens, Evolution, Embryogenesis & Xenobots | Lex Fridman Podcast #325
lay out a set of protocols, starting with the simplest things and then moving up to more complex
https://karpathy.ai/lexicap/0325-large.html#01:47:34.480
Michael Levin: Biology, Life, Aliens, Evolution, Embryogenesis & Xenobots | Lex Fridman Podcast #325
things where you can make no assumptions about what this thing can do, right? You have to start
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Michael Levin: Biology, Life, Aliens, Evolution, Embryogenesis & Xenobots | Lex Fridman Podcast #325
and you'll find out. So when you're going to, so here's a simple, I mean, here's one way to
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Michael Levin: Biology, Life, Aliens, Evolution, Embryogenesis & Xenobots | Lex Fridman Podcast #325
communicate with something. If you can train it, that's a way of communicating. So if you can
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Michael Levin: Biology, Life, Aliens, Evolution, Embryogenesis & Xenobots | Lex Fridman Podcast #325
provide, if you can figure out what the currency of reward of positive and negative reinforcement is,
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Michael Levin: Biology, Life, Aliens, Evolution, Embryogenesis & Xenobots | Lex Fridman Podcast #325
right, and you can get it to do something it wasn't doing before based on experiences you've
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Michael Levin: Biology, Life, Aliens, Evolution, Embryogenesis & Xenobots | Lex Fridman Podcast #325
given, you have taught it one thing. You have communicated one thing, that such and such an
https://karpathy.ai/lexicap/0325-large.html#01:48:01.520
Michael Levin: Biology, Life, Aliens, Evolution, Embryogenesis & Xenobots | Lex Fridman Podcast #325
action is good, some other action is not good. That's like a basic atom of a primitive atom
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