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Sarah Walker

๐Ÿ‘ค Speaker
1530 total appearances

Appearances Over Time

Podcast Appearances

Lex Fridman Podcast
#433 โ€“ Sara Walker: Physics of Life, Time, Complexity, and Aliens

I think that's the intuition that people have derived from it. The intuition I get from cellular automata is that the flat space of an initial condition in a fixed dynamical law is not rich enough to describe an open-ended generation process. And so the way I see cellular automata is they're embedded slices in a much larger causal structure.

Lex Fridman Podcast
#433 โ€“ Sara Walker: Physics of Life, Time, Complexity, and Aliens

I think that's the intuition that people have derived from it. The intuition I get from cellular automata is that the flat space of an initial condition in a fixed dynamical law is not rich enough to describe an open-ended generation process. And so the way I see cellular automata is they're embedded slices in a much larger causal structure.

Lex Fridman Podcast
#433 โ€“ Sara Walker: Physics of Life, Time, Complexity, and Aliens

And if you wanna look at a deterministic slice of that causal structure, you might be able to extract a set of consistent rules that you might call a cellular automata, but you could embed them as much larger space. That's not dynamical and is about the causal structure and relations between all of those computations. And that would be the space cellular automata live in.

Lex Fridman Podcast
#433 โ€“ Sara Walker: Physics of Life, Time, Complexity, and Aliens

And if you wanna look at a deterministic slice of that causal structure, you might be able to extract a set of consistent rules that you might call a cellular automata, but you could embed them as much larger space. That's not dynamical and is about the causal structure and relations between all of those computations. And that would be the space cellular automata live in.

Lex Fridman Podcast
#433 โ€“ Sara Walker: Physics of Life, Time, Complexity, and Aliens

And if you wanna look at a deterministic slice of that causal structure, you might be able to extract a set of consistent rules that you might call a cellular automata, but you could embed them as much larger space. That's not dynamical and is about the causal structure and relations between all of those computations. And that would be the space cellular automata live in.

Lex Fridman Podcast
#433 โ€“ Sara Walker: Physics of Life, Time, Complexity, and Aliens

And I think that's the space that Stephen is talking about when he talks about his rule he added in these hypergraphs of all these possible computations. But I wouldn't take that as my base reality because I think, again, computation itself, this abstract property computation, is not at the base of reality.

Lex Fridman Podcast
#433 โ€“ Sara Walker: Physics of Life, Time, Complexity, and Aliens

And I think that's the space that Stephen is talking about when he talks about his rule he added in these hypergraphs of all these possible computations. But I wouldn't take that as my base reality because I think, again, computation itself, this abstract property computation, is not at the base of reality.

Lex Fridman Podcast
#433 โ€“ Sara Walker: Physics of Life, Time, Complexity, and Aliens

And I think that's the space that Stephen is talking about when he talks about his rule he added in these hypergraphs of all these possible computations. But I wouldn't take that as my base reality because I think, again, computation itself, this abstract property computation, is not at the base of reality.

Lex Fridman Podcast
#433 โ€“ Sara Walker: Physics of Life, Time, Complexity, and Aliens

One Rulliad to rule them all.

Lex Fridman Podcast
#433 โ€“ Sara Walker: Physics of Life, Time, Complexity, and Aliens

One Rulliad to rule them all.

Lex Fridman Podcast
#433 โ€“ Sara Walker: Physics of Life, Time, Complexity, and Aliens

One Rulliad to rule them all.

Lex Fridman Podcast
#433 โ€“ Sara Walker: Physics of Life, Time, Complexity, and Aliens

Well, it's interesting. So Stephen came to a workshop we had in the Beyond Center in the fall, and the workshop theme was mathematics. Is it evolved or eternal? And he gave a talk about the Rulliad, and he was talking about how a lot of the things that we talk about in the Beyond Center, like does reality have a bottom? If it has a bottom, what is it?

Lex Fridman Podcast
#433 โ€“ Sara Walker: Physics of Life, Time, Complexity, and Aliens

Well, it's interesting. So Stephen came to a workshop we had in the Beyond Center in the fall, and the workshop theme was mathematics. Is it evolved or eternal? And he gave a talk about the Rulliad, and he was talking about how a lot of the things that we talk about in the Beyond Center, like does reality have a bottom? If it has a bottom, what is it?

Lex Fridman Podcast
#433 โ€“ Sara Walker: Physics of Life, Time, Complexity, and Aliens

Well, it's interesting. So Stephen came to a workshop we had in the Beyond Center in the fall, and the workshop theme was mathematics. Is it evolved or eternal? And he gave a talk about the Rulliad, and he was talking about how a lot of the things that we talk about in the Beyond Center, like does reality have a bottom? If it has a bottom, what is it?

Lex Fridman Podcast
#433 โ€“ Sara Walker: Physics of Life, Time, Complexity, and Aliens

We'll have you to one sometime.

Lex Fridman Podcast
#433 โ€“ Sara Walker: Physics of Life, Time, Complexity, and Aliens

We'll have you to one sometime.

Lex Fridman Podcast
#433 โ€“ Sara Walker: Physics of Life, Time, Complexity, and Aliens

We'll have you to one sometime.

Lex Fridman Podcast
#433 โ€“ Sara Walker: Physics of Life, Time, Complexity, and Aliens

Yeah. So we had one that was called Infinite Turtles or Ground Truth. And it was really just about this issue. But the thing that was interesting, I think Stephen was trying to make the argument that fundamental particles aren't fundamental. Gravitation is not fundamental. These are just and computation is fundamental.

Lex Fridman Podcast
#433 โ€“ Sara Walker: Physics of Life, Time, Complexity, and Aliens

Yeah. So we had one that was called Infinite Turtles or Ground Truth. And it was really just about this issue. But the thing that was interesting, I think Stephen was trying to make the argument that fundamental particles aren't fundamental. Gravitation is not fundamental. These are just and computation is fundamental.

Lex Fridman Podcast
#433 โ€“ Sara Walker: Physics of Life, Time, Complexity, and Aliens

Yeah. So we had one that was called Infinite Turtles or Ground Truth. And it was really just about this issue. But the thing that was interesting, I think Stephen was trying to make the argument that fundamental particles aren't fundamental. Gravitation is not fundamental. These are just and computation is fundamental.