411 REFERENCE · Wiktionary
Sagan's paradox
Reference material by Wiktionary contributors. This retains its source identity and is not 411 news reporting.
English
Etymology
Named after Carl Sagan.
Proper noun
The apparent contradiction between the high probability of the existence of extraterrestrial beings and the lack of observed evidence for such beings.
See also
en Drake equation
en Fermi paradox
en eponyms
en Astrobiology Paradoxes