On Saturday, April 14, 2018 at 4:17:44 PM UTC-5, agrays...@gmail.com wrote: > > > > On Saturday, April 14, 2018 at 8:32:17 PM UTC, Lawrence Crowell wrote: >> >> >>>> >> I have been around the block on these matters with you. >> > > > *In your imagination. AG* >
You have been stuck on these matters since the early days of Vic's discussion forum. In spite of mine and other's efforts you keep "not getting it." I can't write a treatise here. It would be a waste of time. If you want to read a book on this look at Redhead's book on the metaphysics of QM. I can't advise any further, but you will have to study this in greater depth and be willing to cast intuitive and metaphysical baggage aside. LC > > > >> If you refuse to accept them then fine. I can't spend my time trying to >> convince creationists of evolution and I can't try to convince people who's >> metaphysical baggage prevents them from accepting something that we know is >> empirically correct. >> >> > *If you were paying even casual attention you'd know I never disputed the > empirical finding. AG* > > >> Quantum mechanics with its nonlocality and entanglement tells us that a >> quantum system is in many places at once. If I perform a rotation on one >> part of an EPR pair, say by adjusting a magnetic field, the other part >> similarly adjusts. The reason is not because there is a causal >> communication, but because the two parts of the EPR pair are not separable >> in space; they are in fact just the same thing, and further this wholeness >> is epistemologically greater. >> > > > *I see. The two parts or subsystems are not separable in space despite the > fact that the two measurement devices are, and both subsystems are the same > thing even though their arguably simultaneous measurements differ. If that > makes you happy, I have no quarrel. AG* > >> >> Curiously with quantum field theory a lot of nonlocality is swept under >> the rug. The vanishing of equal time commutators on spatial manifolds >> demolishes a lot of this. With quantum fields though since entangled >> systems are short lived and decay the entanglement phase is quickly >> scrambled into the reservoir of states in the measurement apparatus. It is >> why the LHC is not used to research the foundations of quantum mechanics. >> In fact hadron detectors are colorimeters, which indicates heat an loss of >> quantum coherence. So the loss of physics is not that significant. >> >> However, once you bring spacetime into the picture nonlocality returns. >> This is one reason quantum field theoretic methods have not worked with >> quantum gravitation. With quantum gravitation nonlocality in fact returns >> with a vengence. >> >> LC >> > -- You received this message because you are subscribed to the Google Groups "Everything List" group. To unsubscribe from this group and stop receiving emails from it, send an email to everything-list+unsubscr...@googlegroups.com. To post to this group, send email to everything-list@googlegroups.com. Visit this group at https://groups.google.com/group/everything-list. For more options, visit https://groups.google.com/d/optout.
