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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

And I think that's not actually the way the universe really works. I think it's a good approximation for the kind of systems that physicists have studied so far. And I think it will radically fail, um, in the long term at describing reality at its more basal levels. I'm not saying there's a base.

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

And I think that's not actually the way the universe really works. I think it's a good approximation for the kind of systems that physicists have studied so far. And I think it will radically fail, um, in the long term at describing reality at its more basal levels. I'm not saying there's a base.

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

And I think that's not actually the way the universe really works. I think it's a good approximation for the kind of systems that physicists have studied so far. And I think it will radically fail, um, in the long term at describing reality at its more basal levels. I'm not saying there's a base.

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

I don't think that reality has a ground, and I don't think there's a theory of everything, but I think there are better theories, and I think there are more explanatory theories, and I think we can get to something that explains much more than the current laws of physics do.

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

I don't think that reality has a ground, and I don't think there's a theory of everything, but I think there are better theories, and I think there are more explanatory theories, and I think we can get to something that explains much more than the current laws of physics do.

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

I don't think that reality has a ground, and I don't think there's a theory of everything, but I think there are better theories, and I think there are more explanatory theories, and I think we can get to something that explains much more than the current laws of physics do.

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

Yeah, you know, like in physics right now, it's really popular to talk about theories of everything. So string theory is supposed to be a theory of everything because it unifies quantum mechanics and gravity. And, you know, people have their different pet theories of everything.

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

Yeah, you know, like in physics right now, it's really popular to talk about theories of everything. So string theory is supposed to be a theory of everything because it unifies quantum mechanics and gravity. And, you know, people have their different pet theories of everything.

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

Yeah, you know, like in physics right now, it's really popular to talk about theories of everything. So string theory is supposed to be a theory of everything because it unifies quantum mechanics and gravity. And, you know, people have their different pet theories of everything.

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

And the challenge with a theory of everything, I really love this quote from David Krakauer, which is a theory of everything is a theory of everything except those things that theorize.

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

And the challenge with a theory of everything, I really love this quote from David Krakauer, which is a theory of everything is a theory of everything except those things that theorize.

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

And the challenge with a theory of everything, I really love this quote from David Krakauer, which is a theory of everything is a theory of everything except those things that theorize.

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

Yeah, but it's also weird because if a theory of everything explained everything, it should also explain the theory. So the theory has to be recursive. And none of our theories of physics are recursive. So it's a weird concept.

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

Yeah, but it's also weird because if a theory of everything explained everything, it should also explain the theory. So the theory has to be recursive. And none of our theories of physics are recursive. So it's a weird concept.

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

Yeah, but it's also weird because if a theory of everything explained everything, it should also explain the theory. So the theory has to be recursive. And none of our theories of physics are recursive. So it's a weird concept.

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

I don't think so. I think you can build a theory acknowledging that you're an observer inside the universe.

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

I don't think so. I think you can build a theory acknowledging that you're an observer inside the universe.

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

I don't think so. I think you can build a theory acknowledging that you're an observer inside the universe.

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

I think so. I mean, I don't think, there's always going to be the paradox of another meta level you could build on the meta level, right? So like if you assume this is your universe and you're the observer outside of it, you have some meta description of that universe, but then you need a meta description of you describing that universe, right? So, you know, this is one of,

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

I think so. I mean, I don't think, there's always going to be the paradox of another meta level you could build on the meta level, right? So like if you assume this is your universe and you're the observer outside of it, you have some meta description of that universe, but then you need a meta description of you describing that universe, right? So, you know, this is one of,