FTL coms are a concession to the story, it would have been terrible without it
IRL quantum entanglement can’t ever provide causality breaking info. In very simple terms, you need correlation to know when the data stream began as just observing the resulting spins still seem just as random before and after the event.
In even more simple terms: Whatever message they can send even if pre-agreed on seems like random heat results until you know the exact moment the transmission began, as confirmed by a light lagged message.
In less simple terms, the misunderstanding comes from treating the metaphor of ‘flipping the spin north switch’ as a literal thing instead of a less-than ideal ‘lies to children’ of what is actually happening to particles that experience spin transition, and the meaning of ‘entangled’ is both less and more strange than people understand.
But again, 3 body problem would have been a terrible story without it,t hat’s why it’s science fiction
FTL coms are a concession to the story, it would have been terrible without it
IRL quantum entanglement can’t ever provide causality breaking info. In very simple terms, you need correlation to know when the data stream began as just observing the resulting spins still seem just as random before and after the event.
In even more simple terms: Whatever message they can send even if pre-agreed on seems like random heat results until you know the exact moment the transmission began, as confirmed by a light lagged message.
In less simple terms, the misunderstanding comes from treating the metaphor of ‘flipping the spin north switch’ as a literal thing instead of a less-than ideal ‘lies to children’ of what is actually happening to particles that experience spin transition, and the meaning of ‘entangled’ is both less and more strange than people understand.
But again, 3 body problem would have been a terrible story without it,t hat’s why it’s science fiction