On 7/6/2018 9:26 AM, Bruno Marchal wrote:
It is like they find themselves in the relevant partition of the mutilverse, but as there has not been any collapse, nothing has needed to propagate after than light. The non-locality, or better inseparability, just assures that whatever differentiation will occur locally, they will have the correlated spin, but at no point are we assured that Alice meet something like the original Bob. The differentiation of the universe develops locally.
No, it differentiates in a coordinated, space-like way, keeping */that Alice /*with /*that Bob*/ so that only the correctly correlated Alice and Bob can meet, i.e. be in the same world at the same time and place.
Once Alice and Bob are space-light separated, they will never meet again after they made local measurement.
But they do meet again. Only events are space-like separated. People have persistent world-lines which are both space-like and time-like depending on the events chosen. But "meeting", being at the same events, is invariant.
Each will meet only the corresponding (correlated) person, but there is no reason we can identify them in any single word.
You can identify whomever meets as being in a single world. That's the point of Bruce's exposition.
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