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Stephen Wolfram

๐Ÿ‘ค Speaker
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4010 total appearances
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Podcast Appearances

Lex Fridman Podcast
#376 โ€“ Stephen Wolfram: ChatGPT and the Nature of Truth, Reality & Computation

The one counterexample to this is if you think you're modeling the whole universe all the way down, then there is a notion of a correct model.

Lex Fridman Podcast
#376 โ€“ Stephen Wolfram: ChatGPT and the Nature of Truth, Reality & Computation

But even that is more complicated because it depends on kind of how observers sample things and so on.

Lex Fridman Podcast
#376 โ€“ Stephen Wolfram: ChatGPT and the Nature of Truth, Reality & Computation

That's a separate story.

Lex Fridman Podcast
#376 โ€“ Stephen Wolfram: ChatGPT and the Nature of Truth, Reality & Computation

But at least at the first level,

Lex Fridman Podcast
#376 โ€“ Stephen Wolfram: ChatGPT and the Nature of Truth, Reality & Computation

to say this thing about, oh, it's an approximation, you're capturing one aspect, you're not capturing other aspects.

Lex Fridman Podcast
#376 โ€“ Stephen Wolfram: ChatGPT and the Nature of Truth, Reality & Computation

When you really think you have a complete model for the whole universe, you better be capturing ultimately everything, even though to actually run that model is impossible because of computational irreducibility.

Lex Fridman Podcast
#376 โ€“ Stephen Wolfram: ChatGPT and the Nature of Truth, Reality & Computation

The only thing that successfully runs that model is the actual running of the universe.

Lex Fridman Podcast
#376 โ€“ Stephen Wolfram: ChatGPT and the Nature of Truth, Reality & Computation

It's the universe itself.

Lex Fridman Podcast
#376 โ€“ Stephen Wolfram: ChatGPT and the Nature of Truth, Reality & Computation

But okay, so what you care about...

Lex Fridman Podcast
#376 โ€“ Stephen Wolfram: ChatGPT and the Nature of Truth, Reality & Computation

Yes.

Lex Fridman Podcast
#376 โ€“ Stephen Wolfram: ChatGPT and the Nature of Truth, Reality & Computation

So, I mean, for example, you know, we could, we'll have a thing about, you know, data about movies, let's say.

Lex Fridman Podcast
#376 โ€“ Stephen Wolfram: ChatGPT and the Nature of Truth, Reality & Computation

We could be describing every individual pixel in every movie and so on, but that's not the level that people care about.

Lex Fridman Podcast
#376 โ€“ Stephen Wolfram: ChatGPT and the Nature of Truth, Reality & Computation

And it's, yes, this is a, I mean, and that level that people care about

Lex Fridman Podcast
#376 โ€“ Stephen Wolfram: ChatGPT and the Nature of Truth, Reality & Computation

is somewhat related to what's described in natural language.

Lex Fridman Podcast
#376 โ€“ Stephen Wolfram: ChatGPT and the Nature of Truth, Reality & Computation

But what we're trying to do is to find a way to sort of represent precisely so you can compute things.

Lex Fridman Podcast
#376 โ€“ Stephen Wolfram: ChatGPT and the Nature of Truth, Reality & Computation

See, one thing when you say, you give a piece of natural language, question is, you feed it to a computer.

Lex Fridman Podcast
#376 โ€“ Stephen Wolfram: ChatGPT and the Nature of Truth, Reality & Computation

You say, does the computer understand this natural language?

Lex Fridman Podcast
#376 โ€“ Stephen Wolfram: ChatGPT and the Nature of Truth, Reality & Computation

well, the computer processes it in some way, it does this, maybe it can make a continuation of the natural language, maybe it can go on from the prompt and say what it's gonna say.

Lex Fridman Podcast
#376 โ€“ Stephen Wolfram: ChatGPT and the Nature of Truth, Reality & Computation

You say, does it really understand it?

Lex Fridman Podcast
#376 โ€“ Stephen Wolfram: ChatGPT and the Nature of Truth, Reality & Computation

Hard to know.