The conversation moved on to other topics, until during lunch Fermi blurted out, 'But where is everybody?' (although the exact quote is uncertain). While walking to lunch, the men discussed recent UFO reports and the possibility of faster-than-light travel. Italian-American physicist Enrico Fermi's name is associated with the paradox because of a casual conversation in the summer of 1950 with fellow physicists Edward Teller, Herbert York, and Emil Konopinski. As a 2015 article put it, 'If life is so easy, someone from somewhere must have come calling by now.' The Fermi paradox is the discrepancy between the lack of conclusive evidence of advanced extraterrestrial life and the apparently high a priori likelihood of its existence. Webb discusses in detail the 50 most cogent and intriguing solutions to Fermi's famous paradox.A graphical representation of the Arecibo message, humanity's first attempt to use radio waves to actively communicate its existence to alien civilizations But one of the four, Enrico Fermi, asked, 'If these civilizations do exist, where is everybody?' Given the fact that there are perhaps 400 million stars in our Galaxy alone, and perhaps 400 million galaxies in the Universe, it stands to reason that somewhere out there, in the 14 billion-year-old cosmos, there is or once was a civilization at least as advanced as our own. In a 1950 conversation at Los Alamos, four world-class scientists generally agreed, given the size of the Universe, that advanced extraterrestrial civilizations must be present. (source: Nielsen Book Data) Publisher's summary The sheer enormities of the numbers almost demand that we accept the truth of this hypothesis. Given the fact that there are perhaps 400 million stars in our Galaxy alone, and perhaps 400 million galaxies in the Universe, it stands to reason that somewhere out there, in the 14-billion-year-old cosmos, there is or once was a civilization at least as advanced as our own. With Notes, Suggestions for Further Reading, and Index. They Exist, But Have Not Yet Communicated

The 50 solutions to Fermi's paradox are divided into three major groups: I.Bibliography Includes bibliographical references (pages 275-282) and index.

Stephen webb fermi paradox