“[T]he claim that the central concern of religion is nonsense. Throughout human history, the central concern of religion has been human self-interest. In the Judeo-Christian-Islamic tradition, all morality has been obtained from declarative sentences of the form "Thou shalt not kill—because you'll go to Hell if you do!" In the Hindu-Buddhist tradition... "...—because you'll be born as a cockroach if you do!" ...In both cases, the appeal is to physics, not to fundamental moral postulates.<!--p. 330-->”
“It is argued that if extraterrestrial intelligent beings exist, then their spaceships must already be present in our solar system.”
Frank J. Tipler
“[A]n intelligent species with the technology for interstellar communication would necessarily develop the technology for interstellar travel, and this would automatically lead to the exploration and/o...”
Frank J. Tipler
“[T]hat any intelligent species which develops... interstellar communication will also have... rocketry... is... a consequence of the principle of mediocrity... (that our own evolution is typical)... [...”
Frank J. Tipler
“[I]t seems likely that a species engaging in interstellar communication would possess a fairly sophisticated computer technology. ...Sagan has asserted that 'Communication with extraterrestrial intell...”
Frank J. Tipler
“I shall assume that such a species will... develop a self-replicating universal constructor with intelligence comparable to the human level—such a machine should be developed within a century, accordi...”
Frank J. Tipler