2 ms·

I'll be that guy and say for completeness that while local hidden variables are ruled out, global variables are not via something like Bohmian mechanics.

• ziofill 5y ago
  True. However each alternative comes with a lot of baggage, and there is no easy way out: 1) it could be that locality doesn't hold (as in Bohmian mechanics), but then causality takes a big hit because we must accept that it can also work backward in time. 2) it could be that realism doesn't hold (which is the more commonly accepted evil) i.e. that there is no cause for the particular value emerging from the measurement of an entangled property. True randomness. (And yet, it satisfies the required correlations). After years of losing sleep over it, I like to think that entangled properties are somehow 'part of the same whole', which is independent of space-time, and that space-time is a construct that emerges from the particular way decoherence seems to choose position and momentum as preferred bases.