On 4/13/2018 6:35 PM, agrayson2...@gmail.com wrote:
On Saturday, April 14, 2018 at 1:08:55 AM UTC, Brent wrote: On 4/13/2018 5:56 PM, agrays...@gmail.com <javascript:> wrote:On Saturday, April 14, 2018 at 12:50:41 AM UTC, Lawrence Crowell wrote: On Friday, April 13, 2018 at 2:24:11 PM UTC-5, agrays...@gmail.com wrote: On Friday, April 13, 2018 at 6:53:23 PM UTC, Brent wrote: On 4/13/2018 6:44 AM, agrays...@gmail.com wrote:*But since the momentum of either particle doesn't pre-exist the measurement, there is a FTL influence, which IS hard to understand. In fact, I doubt anyone does understand it. AG *What would it mean to "understand it" besides being able to use the equations to make correct inferences? Brent * It's an ostensible contradiction with relativity that information transfer cannot be instantaneous. Now please don't use the semantic dodge that there is no information transfer because it's just an "influence". AG* The reason touching an entangled system here is correlated with it there is the system is the same in both regions of space. Quantum mechanics is not really primarily about causality in space or spacetime, but rather has a representation in space and time. LC *You're in denial. Better to admit a baffling result and let the chips fall. AG *Are you also baffled by the result of measuring the momentum of one of two billard balls after their collision? Brent*Not if the interaction is treated classically since local realism is assumed. But if it's treated quantum mechanically, the momenta don't exist prior to the measurement. This implies instantaneous action at a distance. AG*
But why does that make baffling? Do you realize that the classical case would have been baffling before Newton. Someone would have wondered, "How does the distant billard ball know what momentum to have? It's witchcraft."
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