Light-Speed Spaceships Would Have Trouble Phoning Home - eviltoast

Subspace is the answer of course!

    • xkforce@lemmy.world
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      11 months ago

      For a variety of reasons, no information is actually transferred. Quantum entanglement can not be used to get around the limits imposed by relativity.

    • INeedMana@lemmy.world
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      11 months ago

      So it’s not like: when I affect the hue (some attribute) of my half, the other half will change too? That has always been my understanding of it

      • SpacetimeMachine@lemmy.world
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        11 months ago

        No, measuring one particle collapses the entanglement and they no longer affect each other. It is a one time thing. You can’t modify them after they have been observed.

          • SpacetimeMachine@lemmy.world
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            11 months ago

            Nope. Because you don’t know when it will collapse,. Imagine you have 2 balls, a red and a blue. They are both put in boxes and each ship takes 1 box. After you travel a long distance you open your box. You have just collapsed the “superposition” of what color the balls were. You now know what color both balls are, but you don’t know if the other person has looked in their box yet.

            I think a lot of people get confused by the term “observe” when talking about collapsing quantum uncertainty. Observing requires a photon to interact with the particle which is what caused it to “choose” what state it is in.