It is a very strange theory. It is non-local. It comes dangerously close to violating special relativity. It is time assymetric, more precisely CPT assymetric.
I'd bet for many-worlds, although that violates Occam a bit. It seems excessive to make a copy of the whole universe for the sake of one particle. Perhaps that is why it is still not accepted - whatever mechanism splits the universe seems incredibly expensive.
I'm okay with quantum nonlocality. Based on various Bell's Inequality experiments, it seems something we have to accept, that a single wavefunction can describe physically separated systems. Some believe space, and perhaps even time, are emergent from something deeper. I believe time is fundamental and axiomatic, but I can see space being emergent. If so, some forms of nonlocality aren't a problem.
I've long found it odd that supporters of the MWI argue that Occam *favors* the interpretation in removing the extra aspect of WF collapse. Exactly as you say, the proliferation of universes seems far more to swallow than having to solve WF collapse. There are concrete theories about the latter but mostly handwaving for the former.
It is a very strange theory. It is non-local. It comes dangerously close to violating special relativity. It is time assymetric, more precisely CPT assymetric.
I'd bet for many-worlds, although that violates Occam a bit. It seems excessive to make a copy of the whole universe for the sake of one particle. Perhaps that is why it is still not accepted - whatever mechanism splits the universe seems incredibly expensive.
I'm okay with quantum nonlocality. Based on various Bell's Inequality experiments, it seems something we have to accept, that a single wavefunction can describe physically separated systems. Some believe space, and perhaps even time, are emergent from something deeper. I believe time is fundamental and axiomatic, but I can see space being emergent. If so, some forms of nonlocality aren't a problem.
I've long found it odd that supporters of the MWI argue that Occam *favors* the interpretation in removing the extra aspect of WF collapse. Exactly as you say, the proliferation of universes seems far more to swallow than having to solve WF collapse. There are concrete theories about the latter but mostly handwaving for the former.