If the Universe Is Teeming with Aliens ... WHERE IS EVERYBODY?: Seventy-Five Solutions to the Fermi Paradox and the Problem of Extraterrestrial Life

by Stephen Webb

Ćirković argues that postbiological civilizations will be motivated by a different definition of success: it won’t be measured in terms of the extent to which they control space but rather the extent to which they control the substrate of their environment. In particular, success will probably be measured in terms of the amount and quality of digital computation they can access.

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