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A comment on Why quantum entanglement doesn't allow faster-than-light communication (2016). Parent comment
This is true. There is no way to tell if a measurement you do happened on an entangled particle or on a "free" one.
You can only tell in retrospect, when you correlate results, which requires classical communication.
This is true. There is no way to tell if a measurement you do happened on an entangled particle or on a "free" one.
You can only tell in retrospect, when you correlate results, which requires classical communication.