It can look dumb, but I always had this question as a kid, what physical principles would prevent this?

  • @[email protected]
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    3 days ago

    If you’re openminded enough to listen to those who disagree with the standard model,
    take an elastic band and turn one end. Instead of the band turning, you’ll have a twist in your band
    and it takes time to unravel the twist if you let go on the other end.
    That’s what will happen to the stick and this travels at lightspeed,
    because this is how light works. Light works like ‘the stick’ in your example.
    And if you try turning it faster the ‘elastic band’/stick/‘atom on the other end’ starts breaking.

    If you need FTL communication, then use gravity…somehow.

    • @Valmond
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      83 days ago

      Gravity waves doesn’t go faster than light though?

      • @[email protected]
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        3 days ago

        I’m going way way out against the standard model here.
        No spacetime, no dark matter or dark energy, not even photons.
        Just a ‘3D big ball of yarn single object universe’.
        If light is a ‘turn of the “stick”’, then gravity is how ‘the “sticks” are binding the atoms together’.

        And so there would not be any gravity waves.
        And any measurement of them would then have nothing to do with gravity.

        And gravity is instantateous, and if not, really really fast or planets and stars would slingshot themselves out of orbit.

      • @[email protected]
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        -23 days ago

        Iirc from the 2 YouTube videos I watched light can theoretically bend thanks to gravity, black holes anyone?

        • @[email protected]
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          113 days ago

          Space bends due to gravity. Light continues in a straight line through the now non-linear space, thus appearing to bend.

        • @Klear
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          83 days ago

          Gravity bends spacetime, light always goes in a straight line, bent spacetime means straight lines can be curvy. That all checks out.

          But none of that helps you with FTL communication.