On Fri, Nov 10, 2017 at 7:08 PM, Alan Grayson <agrayson2...@gmail.com> wrote:
>> >> >> That's not the measurement problem, its determining if how and why >> observation effects things. >> > > > > Not to split hairs, but why we get what we get in quantum measurements, > and how measurement outcomes come to be what they are, are the same problem > IMO. > The measurement problem is not the ability or inability to predict exact outcomes, the measurement problem is defining what is and what is not a measurement and finding the minimum properties a system must have to be an observer. Nondeterminism is not a problem and there is no inconsistency at all regardless of what turns out to be true ; if some effects have no cause and true randomness exists then that's just the way things are are and t here is no resulting paradox and no question that needs answering. The title of this thread is about the consistency of Quantum Mechanics, but far more important than QM is the ability of ANY theory to be compatible with experimental results, and one of those experiments shows the violation of Bell's Inequality. And that violation tells us that for ANY theory to be successful at explaining how the world works AT LEAST one of the following properties of that theory must be untrue: 1) Determinism 2) Locality 3) Realism Is Many Worlds deterministic? Yes in the sense that it just follows the wave function and that is deterministic, it's only the collapse of the wave function that is nondeterministic and that never happens in Manny Worlds. Is Many Worlds Local? Some say yes but I would say no because those other worlds are about as non-local as you can get, you can't get there even with infinite time on your side. But even if I'm wrong about locality Many Worlds would still be in the running for a successful theory because it is certainly not realistic. John K Clark -- 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.
