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Sean Carroll: Quantum Mechanics and the Many-Worlds Interpretation
Lex Fridman Podcast
The Entropy of a Quantum Mechanical System
Entropy is a measure of how much we don't know about the state of the system. So if I have a bottle of water molecules and I know that, okay, there's a certain number of water molecules I could weigh it, right? And that's what the entropy characterizes. How much unknown information there is,. When we try to describe a quantum mechanical system, is it infinite or finite but very large? That depends on the system.
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