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Does Cosmic inflation cause spacetime to move?

  1. Jul 26, 2014 #1
    I've thought about this a lot and have tried to find the answer but have been unsuccessful. In the event of the big bang did it inflate through spacetime without effecting it other than warping by mass or did it actually cause the spacetime to flow or move outwards with the inflation?
  2. jcsd
  3. Aug 5, 2014 #2
    I'm sorry you are not generating any responses at the moment. Is there any additional information you can share with us? Any new findings?
  4. Aug 6, 2014 #3


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    You are thinking of space time as some sort of independent entity, an aether so to speak. It is not. The BB created space time, so obviously, it could not move 'through' it.
  5. Aug 6, 2014 #4


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    Natisrt, it may be more helpful to think of spacetime as a way of labeling the positions of objects in space and time, not as an "aether" or something which can move and flow.
  6. Aug 6, 2014 #5
    Well I'm asking because Einstein theorized that outside of our universe there is no spacetime. Then you have so many theories of multi verses and how our universe could be a bubble, is that theoretical bubble just a group of matter or a bubble of matter and spacetime?
  7. Aug 12, 2014 #6
    in one case, something like:

    the bubbles: areas where the inflaton has decayed from a false vacuum to the ground state where it's no longer going through a super inflationary state

    you start with an inflationary universe, different regions decay as above at different times forming non-casually connected "bubble universes", new ones keep 'popping' up (all sorts of things to work through to find it goes forever and regarding collisions or not, etc.)
  8. Aug 12, 2014 #7


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    Great idea, it merely lacks any observational evidence.
  9. Aug 18, 2014 #8

    Heck, they almost had some, although now they can't be sure it wasn't just dust.
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