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      Scientific American May 2003

      Parallel Universes

      Not just a staple of science fiction, other universes are a direct implication of cosmological observations

      • By Max Tegmark on May 1, 2003

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      More in the May 2003 issue of Scientific American
      • Pulling the Lever
      • Wired Superstrings
      • Spotty Defense
      View Full Contents
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