Concept
Do Androids Dream of Electric Sheep? (retrospectively titled Blade Runner: Do Androids Dream of Electric Sheep? in some later printings) is a dystopian science fiction novel by American writer Philip K. Dick, first published in 1968. The novel is set in a post-apocalyptic San Francisco, where Earth's life has been greatly damaged by a nuclear global war, leaving most animal species endangered or extinct. The main plot follows Rick Deckard, a bounty hunter who has to "retire" (i.e. kill) six escaped Nexus-6 model androids, while a secondary plot follows John Isidore, a man of sub-par IQ who aids the fugitive androids. The book served as the basis for the 1982 film Blade Runner and, even though some aspects of the novel were changed, many elements and themes from it were used in the film's 2017 sequel Blade Runner 2049. Following a devastating global war in what was then the near future the Earth's radioactively polluted atmosphere leads the United Nations to encourage mass emigrations to off-world colonies to preserve humanity's genetic integrity. Moving away from Earth comes with the incentive of free personal androids: robot servants identical to humans. The Rosen Association manufactures the androids on a colony on Mars, but some androids rebel and escape to Earth, where they hope to remain undetected. American and Soviet police departments remain vigilant and keep android bounty-hunting officers on duty. On Earth, owning real live animals has become a fashionable status symbol, both because mass extinctions have made authentic animals rare and because of the accompanying cultural push for greater empathy. Poor people can only afford realistic-looking robot imitations of live animals. Rick Deckard, the novel's protagonist, for example, owns an electric black-faced sheep. The trend of increased empathy has coincidentally motivated a new technology-based religion called Mercerism, which uses "empathy boxes" to link users simultaneously to a virtual reality of collective suffering, centered on a martyr-like character, Wilbur Mercer, who eternally climbs up a hill while being hit with crashing stones.