Jared Diamond (citado por Razib Khan):
…I find it mind-boggling that the astronomers now eager to spend a hundred million dollars on the search for extraterrestrial life never thought seriously about the most obvious question: what would happen if we found it, or if it found us. The astronomers tacitly assume that we and the little green monsters would welcome each other and settle down to fascinating conversations. Here again, our own experience on Earth offers useful guidance. We’ve already discovered two species that are very itnelligent but less technically advanced than we are-the common chimpanzee and pygmy chimpanzee. Has our response been to sit down and try to communicate with them? Of course not. Instead we shoot them, dissect them, cut off their hands for trophies, put them on exhibit in cages, inject them with AIDS virus as a medical experiment, and estroy or take over their habitats. That response was predictable, because human explorers who discvered technically less advanced humans also regularly responded by shooting them, decimating their popualtiosn with new diseases, and destroything or taking over their habitats.
Any advanced extraterrestrials who discovered us would surely treat us in the same way….