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What I personally do not like about pilot wave theory is that in the many body versions of the theory that I've seen, you still need a wave function that depends on the positions of all the particles. That is, the "pilot wave", unlike physical fields like electric or magnetic fields, is not a function of location in spacetime, nor is it attached to a particle, but to all particles. This means in a certain sense the amount of information in a given space grows exponentially with the number of particles. To me this has always been one of the mysteries of QM, and in pilot wave theory it is as much of a mystery.

(The main thing that pilot wave theory clarifies for me is wave function collapse.)




Still better than world-splitting at every instant. Isn't it?


Yes, I would agree with that!




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