But this line of thinking eventually leads to Fermi Paradox. The apparent size and age of the universe suggest that many technologically advanced extraterrestr

But this line of thinking eventually leads to Fermi Paradox. The apparent size and age of the universe suggest that many technologically advanced extraterrestrial civilizations ought to exist. However, this hypothesis seems inconsistent with the lack of observational evidence to support it. http://en.wikipedia.org/wiki/Fermi_paradox http://en.wikipedia.org/wiki/Fermi_paradox