2min chapter

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#124 – Stephen Wolfram: Fundamental Theory of Physics, Life, and the Universe

Lex Fridman Podcast

CHAPTER

The Power of Causal Invariance

There's this idea of what I call causal invariance. You can multiply them out in any order, you'll always get the same answer. Same thing if you let's say you've got a bunch of As and Bs. They're in some random order, you know, BAA, BBBAA, whatever. And you have a little rule that says, every time you see BA, flip it around to AB. In the end, you will always get the string sorted the same way. That's a really, really powerful, powerful idea.

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