Comment on Light-Speed Spaceships Would Have Trouble Phoning Home

• echodot@feddit.uk ⁨11⁩ ⁨months⁩ ago

  Yeah but physical objects also can’t move faster than the speed of light so in any scenario where that’s possible we’ve obviously either found a workaround or we were fundamentally wrong about some part of physics.

  Maybe we have access to wormholes and we can just send radio waves through the wormholes Stargate style.

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  • orrk@lemmy.world ⁨11⁩ ⁨months⁩ ago

    well, any going faster than light will have to utilize the bending of space-time, if it ever happens and the wormhole thing has even more problems

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  • perviouslyiner@lemm.ee ⁨11⁩ ⁨months⁩ ago

    problem with wormholes is that you can send information into the past - so if you receive a message, does that mean you’re predetermined to subsequently send that message

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• arin@lemmy.world ⁨11⁩ ⁨months⁩ ago

  Speech can’t go faster than the speed of sound. It uses sound waves… But then comes telephone networks

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  • orrk@lemmy.world ⁨11⁩ ⁨months⁩ ago

    to be fair, it’s still both slower than the light signals that were then as are now the fastest possible form of data transfer.

    saying “but someone might invent something” doesn’t mean shit to physics, it’s why we can always with confidence say that Perpetumobile are impossible

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    • arin@lemmy.world ⁨11⁩ ⁨months⁩ ago

      You’re missing the point

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      • orrk@lemmy.world ⁨11⁩ ⁨months⁩ ago

        no, I don’t think I am, unless you want to make the argument that infinite free energy is just 1…n brilliant inventor(s) away

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• paradiso@lemm.ee ⁨11⁩ ⁨months⁩ ago

  Quantum entanglement? (forgive me if dumb thought, quantum physics is magic to me)

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  • MaggiWuerze@feddit.de ⁨11⁩ ⁨months⁩ ago

    Quantum entanglement can’t transfer data. As soon as you try to use the connection you break it.

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  • WHYAREWEALLCAPS@kbin.social ⁨11⁩ ⁨months⁩ ago

    Quantum entanglement is like this - you have two sealed envelopes. In one envelope the letter A is written on a sheet of paper and the other has a sheet of paper with B written on it. No one knows who has which envelope until it is opened. All opening the envelope does is let you know what is written on the piece of paper the other person has. It transfers no data between the two points as the data was already set.

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  • orrk@lemmy.world ⁨11⁩ ⁨months⁩ ago

    doesn’t work, “reading” the entangled particles causes them to change state, thus you can’t know if it changed as part of sending a message, or just because you were reading it.

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    • WHYAREWEALLCAPS@kbin.social ⁨11⁩ ⁨months⁩ ago

      There is no "sending" The data was set when the particles were entangled. All you're doing is moving a particle from point A to point B.

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      • orrk@lemmy.world ⁨11⁩ ⁨months⁩ ago

        the data is still being “sent” according to the field of information sciences.

        not that it changes anything about the physical impossibility

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