Comment on Good for him.

• Zephyr@sh.itjust.works ⁨22⁩ ⁨hours⁩ ago

  Current astrophysical data shows that the large-scale spatial geometry of our universe is flat, meaning parallel lines remain parallel and triangles add up to 180°. However, flatness does not strictly prove the universe is infinite; a flat, simply connected universe is mathematically infinite, but a flat, multiply connected universe (like a cylinder or a hyper-torus) could be finite.Observations of the Cosmic Microwave Background have measured this geometry with incredible precision, though slight margins for error still allow for the possibility that the universe curves on scales far larger than what we can observe.Whether the universe is finite or infinite remains an unresolved question in physics, though scientists generally use an infinite, flat model for standard cosmological calculations because it is mathematically simpler.

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  • farngis_mcgiles@sh.itjust.works ⁨21⁩ ⁨hours⁩ ago

    this doesn’t have anything to do with your previous claim that there is an an atom to atom copy of earth elsewhere in the universe though. could the universe pe infinite? maybe. We can only see part of it and we can’t measure the total energy of the big bang to determine an answer at this time.

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    • Zephyr@sh.itjust.works ⁨21⁩ ⁨hours⁩ ago

      Nothing? I’m not sure that’s true. If the universe is infinite and homogeneous then that would infer all finite permutations of energy occur, not once but infinitely many times. As for actually proving the universe is infinite? It’s not possible. We can only infer with measurements and laws of physics which make accurate predictions we can measure.

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      • bstix@feddit.dk ⁨16⁩ ⁨hours⁩ ago

        If the universe is infinite and homogeneous then that would infer all finite permutations of energy occur, not once but infinitely many times.

        That’s a big if.

        Something can be infinite without having any 1:1 repetition of all or any finite parts. Depends on how homogenous it really is and at what scale. If there are infinite permutations within a finite area, then it won’t necessarily repeat ever. There’s currently no proof of whether the universe is discreet or continuous.

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      • ragebutt@lemmy.dbzer0.com ⁨21⁩ ⁨hours⁩ ago

        That’s not inherently true, infinity can be bound

        There are an infinite amount of numbers between 2 and 3 but none of them are 5

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• BlackLaZoR@lemmy.world ⁨16⁩ ⁨hours⁩ ago

  He isn’t wrong. With the assumption of homogenous, and infinite universe, basically everything is guaranteed to happen somewhere.

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