In Liu Cixin's novel, the dark forest hypothesis is introduced by the character Ye Wenjie, while visiting her daughter's grave. She introduces three key axioms to a new field she describes as "cosmic sociology":
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- "Suppose a vast number of civilizations distributed throughout the universe, on the order of the number of observable stars. Lots and lots of them. Those civilizations make up the body of a cosmic society. Cosmic sociology is the study of the nature of this super-society."[19] (based on the Drake equation)[16]
- Suppose that survival is the primary need of a civilization.
- Suppose that civilizations continuously expand over time, but the total matter in the universe remains constant.
The only logical conclusion from the acceptance of these axioms, Ye says, is that any intelligent life in the universe will be pitted against all other life in the struggle for survival.
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https://en.wikipedia.org/wiki/Dark_forest_hypothesis