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John Thomas Sladek (December 15, 1937 – March 10, 2000) was an American science fiction author, known for his satirical and surreal novels.
His first novel, published in London by Gollancz as The Reproductive System and in the United States as Mechasm, dealt with a project to build machines that build copies of themselves, a process that gets out of hand and threatens to destroy humanity. In The Müller-Fokker Effect, an attempt to preserve human personality on tape likewise goes awry, giving the author a chance to satirize big business, big religion, superpatriotism, and men's magazines, among other things. Roderick and Roderick at Random offer the traditional satirical approach of looking at the world through the eyes of an innocent, in this case a robot. Sladek revisited robots from a darker point of view in Tik-Tok, featuring a sociopathic robot who lacks any moral "asimov circuits", and Bugs, a wide-ranging satire in which a hapless technical writer (a job Sladek held for many years) helps to create a robot who quickly goes insane.