• nevemsenki@lemmy.world
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    2 months ago

    Where did the matter/energy for Big Bang come from? On that note, what is outside the border of the universe?

    • linearchaos@lemmy.world
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      2 months ago

      And then where did they matter and energy come from for that universe. It’s turtles all the way down…

    • ooli@lemmy.world
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      2 months ago

      Outside: there is a theory of other universes outside . Which would explain the increasing rate of expansion in place of dark energy

    • mechoman444@lemmy.world
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      2 months ago

      This question actually doesn’t make sense, it’s kind of a paradox in the same way the question of what happened before the Big bang is also strange in the sense that the universe and reality didn’t exist in a form with causality in effect.

      So asking a “before” question in reference to “before” time even started is paradoxical in and of itself. Since “before” wasn’t even a concept in existence.

      Which is why scientists don’t really worry about anything “before” the Big bang.

    • jpreston2005@lemmy.world
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      2 months ago

      The Universe is expanding, rapidly from the big bang still. At some point, it will slow down, and then stop. Then begins a catastrophic cycle of collapse with massive black holes coalescing into one universe eating black hole that compresses every bit of matter into a single point of almost infinite density. At this point the black hole destabilizes, and all of the stored energy is released in one colossal explosion. A Big Bang of sorts.

      The Universe is an Ouroboros.

      • palordrolap@fedia.io
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        2 months ago

        There’s no proof the universe will end in a Big Crunch. Apparently there’s some measure of the universe where if it’s less than 1, we’ll get a Big Crunch, and if it’s greater than 1, we’ll get a Big Rip where everything just falls apart. I may have those backwards, but the important thing is when it’s exactly 1, it implies a universe that continues forever, getting colder and colder. And as best as science can determine for our universe, the value is precisely that.

        But here’s another, well, dimension to that: There’s a popular but unprovable conjecture that our universe is the inside of a black hole that exists in a higher-level universe. In our universe, black holes boil away due to Hawking radiation, a process that can take trillions of years for very large black holes.

        Once the black hole we’re inside of stops consuming matter in the level above, that spells a very slow but alternative end to our universe. One day it will simply cease to exist.

        “This the way the world ends: Not with a bang, but a whimper.” – T.S.Eliot.

        • jpreston2005@lemmy.world
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          2 months ago

          That is interesting but I reject the alternate theories of the Big Rip and the Silent Extinction because they are scary and I don’t like them.

        • sploosh@lemmy.world
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          2 months ago

          I’ve become a fan of the “We’re already in a black hole” theory. The Schwarzschild radius for the mass of the known universe is larger than the radius thereof.

          It’s probably not correct but I do like it.

      • Iapar@feddit.org
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        2 months ago

        Sometimes I think our universe is just an explosion in a big ass combustion engine.

        So everytime I drive a car I create and destroy countless universes just to get some nuggets. Worth it.

      • GrayBackgroundMusic@lemm.ee
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        2 months ago

        At some point, it will slow down, and then stop

        All of the current scientific evidence disagrees with this. 1) There is a velocity such that you can go faster than gravity will be able to slow you down: escape velocity. So, it’s possible even without any new, weird physics. 2) The hubble constant shows that the universe isn’t slowing down, but the opposite: it’s accelerating. Physics doesn’t know why (see Dark Energy). It’s physically measurable that things farther away are accelerating even faster scaling with distance.

    • Rai@lemmy.dbzer0.com
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      2 months ago

      I’m a big bang denier. I have zero evidence. I believe everything has always been, will always be, and goes on forever in every direction. I think anything we do to try to explain is just to protect our brains from being incapable of fathoming that everything is infinite.