The dark forest hypothesis is the conjecture that many alien civilizations exist throughout the universe, but they are both silent and hostile, maintaining their undetectability for fear of being destroyed by another hostile and undetected civilization. It is one of many possible explanations of the Fermi paradox, which contrasts the lack of contact with alien life with the potential for such contact. The hypothesis derives its name from Chinese author Liu Cixin’s 2008 novel ‘The Dark Forest,’ although the concept predates the novel. A similar hypothesis, under the name ‘deadly probes,’ was described by astronomer and author David Brin in his 1983 summary of the arguments for and against the Fermi paradox.
The ‘dark forest’ hypothesis presumes that any space-faring civilization would view any other intelligent life as an inevitable threat and thus destroy any nascent life that makes itself known. As a result, the electromagnetic spectrum would be relatively quiet, without evidence of any intelligent alien life.
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The Daily Omnivore 