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What is the difference between a Grand Unified Theory and a TOE?

  1. May 6, 2013 #1
    Have weak nuclear, strong nuclear, and electromagnetism all been unified? If so, is that the GUT? And is it that unifying those forces with gravity would lead to a TOE?

    Thanks. I'm just getting a little confused.
  2. jcsd
  3. May 6, 2013 #2
    GUT = unify strong, weak and electromagnetic interactions
    TOE = unify GUT with the gravitational interaction
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