Does quantum mechanics describe reality, or just what we perceive as reality? For example: Does a particle actually have both an absolute position and momentum? Or do these particle properties only solidify when the particle is interacted with.
I read that Einstein, Podolsky, and Rosen raised an objection to QM stating that particles possessed definite properties, which is why two widely separated particles with a common origin behave the same. Then I read about Bell and Aspect's data that seemed to put EPR's notion to rest.
So far I'm really confused and not sure what to make of it all. Is the current view that particles exist in a probability wave when they're not being interacted with (by anything)? Thats the impression I'm getting. But if that's the case, let's say I have an electron detector in my garage. When I measure an electron and collapse the probability wave, how does the probability wave for that electron 300 million light years away also intantly collapse? By what mechanism?