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Plank length gravitation.

  1. Oct 13, 2004 #1
    Can two objects move towards each other as a consequence of their gravity a distance smaller than one planck unit of length?
  2. jcsd
  3. Oct 13, 2004 #2


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    It's not clear that the idea of position, and hence of "moving toward" has any meaning at the Planck scale. Spacetime may be foamy, uncertain, and/or topologically complex at that scale.
  4. Oct 13, 2004 #3


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    No one really knows what "distance smaller than one planck unit of length" means. So the question probably doesn't make sense. We'll have to wait for a better theory to know for sure.
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