Fermi's paradox

found: Work cat.: 200273910: Webb, S. Where are they? : fifty solutions to Fermi's paradox, 2002.

found: WWW site, Univ. of New So. Wales, Dept. of Astrophysics and Optics, July 8, 2002(Fermi's paradox; most of the stars in the galaxy are more than a billion years older than the Sun. If life and civilizations are common throughout the galaxy then they should have colonized the galaxy long ago. Where are they? This is known as Fermi's paradox, which relies on the assumption that civilizations (as we know them) have a desire to colonize (or at least explore) the Galaxy)

found: UFOs/Aliens web site, July 9, 2002(Fermi paradox, the story goes that, one day back in the 1940's, a group of atomic scientists, including the famous Enrico Fermi, were sitting around talking, when the subject turned to extraterrestrial life. Fermi is supposed to have asked, "So? Where is everybody?" What he meant was: If there are all these billions of planets in the universe that are capable of supporting life, and millions of intelligent species out there, then how come none has visited earth? This has come to be known as the Fermi paradox.)