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

  • folaht@lemmy.ml
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    12 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.

      • folaht@lemmy.ml
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        12 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.

    • Pinklink@lemm.ee
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      12 days ago

      Probably quantum entanglement, which we (and certainly I) don’t fully understand yet