• naeap@sopuli.xyz
    link
    fedilink
    English
    arrow-up
    6
    ·
    7 hours ago

    Maybe that’s already the case, just out of our event horizon

    There is, afaik, no explanation why there is more matter than anti matter, so maybe we just don’t see it

    Like, dark side of the universe or something ;⁠-⁠)

    • sbeak@sopuli.xyz
      link
      fedilink
      English
      arrow-up
      4
      ·
      5 hours ago

      There is, afaik, no explanation why there is more matter than anti matter, so maybe we just don’t see it

      Like, dark side of the universe or something ;⁠-⁠)

      This is the baryon asymmetry problem, and indeed, one of the proposed solutions is an “anti-universe” that flows backwards in time. The theory goes that all the antimatter travelled backwards in time while matter travelled forward from the Big Bang, creating a mirror anti-universe. However, there has been experimental evidence against this theory, as antiparticles seem to move forward in time, just like their matter counterparts.

      There are a bunch more theories on how matter dominated the universe, like electroweak baryogenesis and leptopgenesis! Those are a bit more complicated though and are difficult to explain in an internet comment.

    • DevDave@piefed.social
      link
      fedilink
      English
      arrow-up
      3
      ·
      5 hours ago

      I thought Madam Wu’s experiment provided a starting point for explaining why the universe exists despite its best efforts to annihilate itself. Disclaimer, I have passing interest in physics but I have no formal education on any of it.

      • naeap@sopuli.xyz
        link
        fedilink
        English
        arrow-up
        2
        ·
        3 hours ago

        Don’t know about that
        Can you provide me some more words to search for it or even a link?

    • Victor@lemmy.world
      link
      fedilink
      English
      arrow-up
      6
      ·
      6 hours ago

      Imma go ahead and postulate that beyond the observable universe is a wall of anti matter, that keeps eating our universe’s matter and neutralizing it.

      Prove me wrong! (Don’t.)

      • naeap@sopuli.xyz
        link
        fedilink
        English
        arrow-up
        1
        ·
        3 hours ago

        Isn’t that the opposite of what we’re “seeing” now with the expanding universe and dark matter (not anti matter) being the reason for space to grow?

        Anti matter and matter live inside the space, that dark matter is “producing”

        At least that’s my layman interpretation of looking at some videos and reading some stuff

        So, I have no clue ;⁠-⁠)