On Fri, 24 May 2013 13:32:50 -0400, David Bernier wrote:
> Suppose (for example) that wave function > collapse in the "standard"/standard interpretation > of Quantum Mechanics was governed by absolutely > indetectable things. > > An indetectable thing is one that's even more discreet > than neutrinos: it doesn't interact at all with the world. > > Does it make sense to postulate (as a thought experiment), > the physical existence of indetectable things?
At present, "alternate universes" are undetectable, but certainly have been postulated. It seems reasonable to think about such things.