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Physics, Astronomy & Cosmology / How is expanding spacetime described in string theory?
« on: 10/12/2008 05:33:05 »
To summarize where I believe we are WRT to my question:
1. Contemporary string theory is as I described it in my 7-Dec post, so it's reasonable to suppose it might have something to say about how spacetime expansion works.
2. It does, contrary to an earlier assumption of mine, invoke things that are smaller than the Planck length. (Not clear to me yet whether these things are the strings or other things.)
3. An implication of #2 is (I think) that spacetime quanta would have to be smaller than the Planck length.
1. Contemporary string theory is as I described it in my 7-Dec post, so it's reasonable to suppose it might have something to say about how spacetime expansion works.
2. It does, contrary to an earlier assumption of mine, invoke things that are smaller than the Planck length. (Not clear to me yet whether these things are the strings or other things.)
3. An implication of #2 is (I think) that spacetime quanta would have to be smaller than the Planck length.