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referframe

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## Main Question or Discussion Point

In Classical Mechanics, according to SR, the concept of simultaneity is dead, a meaningless concept. But in QM, entanglement implies that some limited form of simultaneity exists. If we have two particles correlated due to entanglement, a measurement of one particle

Is simultaneity still alive in QM?

Thanks in advance.

*gives us the probabilities of measurement outcomes for the other particle. “***immediately***” implies some kind of simultaneity. (I realize that the above scenario does not imply faster-than-light transfer of information).***Immediately**Is simultaneity still alive in QM?

Thanks in advance.