3min chapter

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#79 – Lee Smolin: Quantum Gravity and Einstein’s Unfinished Revolution

Lex Fridman Podcast

CHAPTER

What Is Locality in Quantum Field Theory?

In quantum mechanics, you think about the nature of reality as fields and things that are close in a field have an impact on each other more than farther away. So one thing that's really weird about quantum mechanics is a property called entanglement. You can have two particles interact and then share a property without being a property of either one of the two particles. In experiment, it doesn't match. That means that definition of locality, I stated, is false. The one that Einstein was playing with.

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