mormon1 comments on Why Many-Worlds Is Not The Rationally Favored Interpretation - Less Wrong

15 Post author: Mitchell_Porter 29 September 2009 05:22AM

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Comment author: Eliezer_Yudkowsky 01 October 2009 09:45:37AM *  6 points [-]

What happens when I measure an entangled particle at A after choosing an orientation, you measure it at B, and we're a light-year apart, moving at different speeds, and each measuring "first" in our frame of reference?

Why do these so-called "probabilities" resolve into probabilities when I measure something, but not when they're just being microscopic? When exactly do they resolve? How do you know?

Why is the wavefunction real enough to run a quantum computer but not real enough to contain intelligences?

These are all questions that must be faced by any attempted single-world theory. Without specific evidence pointing to a single world, they are not only lethal for the single-world theory but lethal for anyone claiming that we have good reason to think about it.