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Thread: My uninformed speculation on the origin (or lack thereof) of the universe

  1. #1 My uninformed speculation on the origin (or lack thereof) of the universe 
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    Black holes form in a universe.
    Matter in this universe goes into the black hole, creating another universe
    These "child" universes expand, potentially spawning other children, and ultimately collapse, ejecting their matter back into their parent universe
    etc.

    Some thoughts/consequences:
    - this takes place over incredibly vast amounts of time
    - the amount of matter in a child universe is necessarily smaller than the amount in its parent
    - still doesn't explain the ultimate origin (personally I would not even try to do that, since an origin may not even have existed)
    - means that out universe will collapse eventually
    - what happens when the initial uber-parent universe collapses?
    - the amount of matter remains constant at all times and is equal to that of the uber-parent (am using the word matter here and above to mean all stuffs in the universe)

    OK, that's all.


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  3. #2  
    Brassica oleracea Strange's Avatar
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    I can see a number of problems with this.

    The amount of matter in a large black hole is a few times (maybe a few hundred times) the mass of our sun. Not much to make a an entire universe with.

    Within a black hole, stuff is being compressed by gravity. Our universe appears to be expanding and, further, accelerating its rate of expansion.

    Also, within the event horizon, one of the effects of the extreme curvature of spacetime is that one of the "space" dimensions and the "time" dimension are swapped. This means that the singularity (if such a thing exists) at the "center" of the black hole is actually in the future.

    On the other hand, the singularity corresponding to the Big Bang (if such a thing existed) is in our past.

    We currently expect our universe to continue expanding; not collapse back in on itself.

    Hey, but apart from that ...


    ei incumbit probatio qui dicit, non qui negat
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    Universal Mind John Galt's Avatar
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    Quote Originally Posted by Strange View Post
    This means that the singularity (if such a thing exists) at the "center" of the black hole is actually in the future.

    On the other hand, the singularity corresponding to the Big Bang (if such a thing existed) is in our past.
    That just means we don't know if we are coming or going.
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    The amount of matter in a large black hole is a few times (maybe a few hundred times) the mass of our sun. Not much to make a an entire universe with.

    I know, child universes are always smaller than their parents (much, much smaller in this case).


    Within a black hole, stuff is being compressed by gravity. Our universe appears to be expanding and, further, accelerating its rate of expansion.
    We currently expect our universe to continue expanding; not collapse back in on itself.

    Yeah, that seems like the big problem to me. But maybe it will slow down and collapse eventually

    Thanks for the comments.



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    1 Ugly MoFo warthog213's Avatar
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    I can see this happening on a solar level or a galactic level for sure. Love the idealism put into this.
    Quote Originally Posted by GaryG View Post
    Black holes form in a universe.
    Matter in this universe goes into the black hole, creating another universe
    These "child" universes expand, potentially spawning other children, and ultimately collapse, ejecting their matter back into their parent universe
    etc.

    Some thoughts/consequences:
    - this takes place over incredibly vast amounts of time
    - the amount of matter in a child universe is necessarily smaller than the amount in its parent
    - still doesn't explain the ultimate origin (personally I would not even try to do that, since an origin may not even have existed)
    - means that out universe will collapse eventually
    - what happens when the initial uber-parent universe collapses?
    - the amount of matter remains constant at all times and is equal to that of the uber-parent (am using the word matter here and above to mean all stuffs in the universe)

    OK, that's all.
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