I have a more than passing interest in quantum mechanics and have recently been reading a number of articles on De Broglie/Bohm Theory or the Pilot Wave Theory (PWT).
Given that (from the cited article):
Is Everett correct in his assumption that Pilot wave theory violates occams razor and therefore is an inferior way of describing the universe than Many World Theory, which only requires the wavefunction?
Personally, for reasons I can’t explain I like the idea of the pilot wave theory. Many worlds concerns me for the same reason, needless multiplication of entities. Although I am aware that there are numerous variation of MWT, at least one of which requires only a single wavefunction for the whole (infinite) universe and that different realities do not really exist, but those regions of spacetime are simply too far away for us to ever contact (in a nutshell, obviously it’s not as simplistic as this).
So, I have a few questions to debate, is PWT superior to the Copenhagen Interpretation in that it doesn’t rely on a classical observer? In my opinion it is.
How does PWT stack up against MWT? There seems to be arguments in favour of both, PWT has non-local hidden variables, MWT has a wavefunction the solutions of which can either be thought of as parallel universes or separate regions of one universe.
Can either ever be fully (dis)proven?