AFAIUI, under pilot-wave theory it's instantaneous. It's how the theory gets round Bell's Theorem, which only forbids local hidden variables. (Again, I am an i

AFAIUI, under pilot-wave theory it's instantaneous. It's how the theory gets round Bell's Theorem, which only forbids local hidden variables. (Again, I am an interested layman, not a scientist, so this comment may be nonsense.)