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Is the Strong Anthropic Principle Too Weak?

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      Abstract

      We discuss the Carter's formula about the mankind evolution probability following the derivation proposed by Barrow and Tipler. We stress the relation between the existence of billions of galaxies and the evolution of at least one intelligent life, whose living time is not trivial, all over the Universe. We show that the existence probability and the lifetime of a civilization depend not only on the evolutionary critical steps, but also on the number of places where the life can arise. In the light of these results, we propose a stronger version of Anthropic Principle.

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      Journal
      30 December 1998
      gr-qc/9812093
      Custom metadata
      Nuovo Cim. B114 (1999) 281-289
      12 pages, Latex, to appear in Il Nuovo Cimento B
      gr-qc

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