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118 - Slavoj Žižek & Sean Carroll: Quantum Physics, the Multiverse, and Time Travel

Robinson's Podcast

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The Importance of Decoherence

The short answer is the different worlds will not interact. They don't interact, they won't interact going forward because they've declared from each other. The use of our universe is a crucial feature in allowing these different worlds to be separate. I would let what is missing for me in the movies precisely what you're trying to tell this, but we don't know where we are and so on. This uncertainty is lost, I think, in the movie. But even though Hollywood would like it to be otherwise, in the real world, the separate many world branches are completely non-interacting with each other. And there's a technical exposition about that involving states in the environment being perpendicular to

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