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Lawrence Krauss Lecuture: What a baby expanding universe may look like from outside

  1. May 5, 2012 #1
    Lawrence Krauss Lecuture: What a baby expanding universe may look like from "outside"

    I watched a lecture by Krauss a while back


    one of the questions that was asked near the end was that if it was possible that quantum fluctuations could produce a baby universe within our own and if we'd be able to observe this.

    Part of Krauss' response was that from inside this baby universe would be exponentially expanding but from outside it will look like it was collapsing to form a black hole so we wouldnt be completely sure.

    my question is, why would this baby universe appear like a collapsing black hole?
     
    Last edited by a moderator: Sep 25, 2014
  2. jcsd
  3. May 16, 2012 #2
    Re: Lawrence Krauss Lecuture: What a baby expanding universe may look like from "outs

    bump!
     
  4. May 16, 2012 #3

    Drakkith

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    Staff: Mentor

    Re: Lawrence Krauss Lecuture: What a baby expanding universe may look like from "outs

    Not sure. That's one I've never heard of before. Perhaps something to do with the way spacetime warps inside a black hole?
     
  5. May 19, 2012 #4
    Re: Lawrence Krauss Lecuture: What a baby expanding universe may look like from "outs

    Read The Inflationary Universe by Alan Guth he discusses this issue
     
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