Intelligent life in cosmology

@article{Tipler2003IntelligentLI,
  title={Intelligent life in cosmology},
  author={Frank Tipler},
  journal={International Journal of Astrobiology},
  year={2003},
  volume={2},
  pages={141 - 148}
}
  • F. Tipler
  • Published 1 April 2003
  • Philosophy
  • International Journal of Astrobiology
I shall present three arguments for the proposition that intelligent life is very rare in the universe. First, I shall summarize the consensus opinion of the founders of the modern synthesis (Simpson, Dobzhanski and Mayr) that the evolution of intelligent life is exceedingly improbable. Secondly, I shall develop the Fermi paradox: if they existed, they would be here. Thirdly, I shall show that if intelligent life were too common, it would use up all available resources and die out. But I shall… 
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