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Starlink v2 satelites will ruin science.
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this post was submitted on 18 Sep 2024
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Sorry, I meant theoretically as in “at some distant point in the future where we’ve figured out how to make it work.” I probably read too much science fiction.
it physically cannot work. ever. That's just how entanglement works. We know that much.
That's not true either unfortunately
Science fiction quantum entanglement is not the same as real life quantum entanglement. Science fiction has spooky action at a distance, real life doesn't.
The speed of light is the speed of causality, the speed of information. It is physically impossible to send information at speeds greater than the speed of light.
In real life, all quantum entanglement means is that you can entangle two particles, move them away from each other, and still know that when you measure one, the other will have the opposite value. It's akin to putting a red ball in one box and a blue ball in another, then muddling them up and posting them to two addresses. When opening one box, you instantly know that because you saw a red ball, the other recipient has a blue one or vice versa, but that's it. The extra quantum bit is just that the particles still do quantum things as if they're a maybe-red-maybe-blue superposition until they're measured. That's like having a sniffer dog at the post office that flags half of all things with red paint and a quarter of all things with blue paint as needing to be diverted to the police magically redirect three eighths of each colour instead of different amounts of the two colours. The balls didn't decide which was red and which was blue until the boxes were opened, but the choice always matches.