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atucker comments on On Branching vs Probability - Less Wrong
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Comments (29)
How do you tell the difference between those from inside a branch?
The difference between what?
If you want to know how to tell the difference between the MWI of quantum mechanics and a single branch theory, there's no experiment I can give, because there's no such thing as a single branch theory.
The Schroedinger equation gives the behavior of a single particle in a potential field. If you want to model two particles, you have to use the configuration space.
Random and Splitting.
Though, I just realized that I should just google around and look for papers on the subject.
Collapse interpretation, IIRC Bohmian interpretation, unreal MWI, etc.
They still involve the whole MWI, just on a smaller scale.
The difference between randomly choosing when scale gets to a certain point and splitting is that splitting isn't total. There's still some interference between any two universes no matter how far apart they are. It's just that when there's macroscopic differences, the interference is astronomically small.