• simsalabim@lemmy.world
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    4 hours ago

    If that is true maybe that means that it actually is finite and has a center. And the rotation and light speed put an upper bound on its size.

    Actually no, that would only be true if the universe was two-dimensional. The universe essentially curves back on itself. Kurzgesagt explained the two options of finite and infinity universes and this timestamp explaines the curving back: https://youtu.be/isdLel273rQ?t=120

    • Björn Tantau@swg-empire.de
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      4 hours ago

      Kurzgesagt really like to present scientific speculations as fact.

      We simply do not know whether the universe is finite or infinite. And so far no curvature has been observed. As far as we are aware it is flat.