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Planck length - what is it really?

  1. Mar 28, 2012 #1
    Hello everyone.

    After reading most of the existing topics on the Planck length, I still haven't found what the Planck length really is. Some references say nothing can possibly be smaller than the Planck length, whereas others say it's just a threshold below which "special" things happen.

    So... can things be smaller than the Planck length, or not? Most importantly, can a singularity be smaller than the Planck length?

    Thanks in advance.
     
  2. jcsd
  3. Mar 28, 2012 #2
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