2081: A Hopeful View of The Human Future - Part IV: Wild Cards

Part IV: Wild Cards

This section explores, not the most probable outcomes, but "the limits of the possible": how likely some scenarios O'Neill considered less probable are, and what they might mean. These included nuclear annihilation, attaining immortality, and contact with extraterrestrial civilizations. For this last case, he presents a thought experiment about how a hypothetical alien civilization, the "Primans", could explore the galaxy with self-replicating robots, monitoring every planetary system in the Galaxy without betraying their own position, and destroying intelligent life (by building giant mirrors to incinerate the planet) if they felt threatened. This experiment seems to prove that conflict or even surprise contact with an intelligent alien life form—that staple of science fiction—is highly unlikely.

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