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B Universe within a universe

  1. Feb 5, 2017 #1

    Is it possible that there could be another big bang within our universe? What would this mean for our universe? Would it destroy us from the inside like the aliens from the Alien films?

    If quantum foam is like the canvas of reality and it gave way for the big ban then then why aren't we seeing big bangs all the time or is the big bang really just a one off/rare event?

    My body is made from quantum foam so what is there to stop my body from giving birth to another universe?
  2. jcsd
  3. Feb 22, 2018 at 1:29 AM #2
    Yes, it's very possible. It's called a phase transition in the inflaton field that permeates our universe. Essentially, the inflaton field is is a hypothetical scalar field responsible for driving inflation. If, through some quantum tunnelling phenomenon, a local region of the field drops in energy with respect to the surrounding field, it will expand like a little bubble universe would undergo inflation.
    If you want a more in depth explanation, read this.
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