Answer:
a concession to something derogatory or prejudicial a compromise of principles.
Explanation:
Do you mean what caused it? or what the after affects where?
Description The Fermi paradox, named after Italian-American physicist Enrico Fermi, is the apparent contradiction between the lack of evidence for extraterrestrial civilizations and various high estimates for their probability. Michael H. Hart formalized the basic points of the argument in a 1975 paper.
