Postsingular
It all begins next year in California. A maladjusted computer industry billionaire and a somewhat crazy US President initiate a radical transformation of the world through sentient nanotechnology; sort of the equivalent of biological artificial intelligence. At first they succeed, but their plans are reversed by Chu, an autistic boy. The next time it isn't so easy to stop them. Most of the story takes place in a world after a heretofore unimaginable transformation, where all the things look the same but all the people are different (they're able to read each others' minds, for starters). Travel to and from other nearby worlds in the quantum universe is possible, so now our world is visited by giant humanoids from another quantum universe, and some of them mean to tidy up the mess we've made. Or maybe just run things. Rudolf von Bitter Rucker is an American mathematician, computer scientist, science fiction author, and philosopher, and is one of the founders of the cyberpunk literary movement. The author of both fiction and non-fiction, he is best known for the novels in the Ware Tetralogy, the first two of which (Software and Wetware) both won Philip K. Dick Awards. As his "own alternative to cyberpunk," Rucker developed a writing style he terms: Transrealism, as outlined in his 1983 essay "The Transrealist Manifesto," is science fiction based on the author's own life and immediate perceptions, mixed with fantastic elements that symbolize psychological change. Many of Rucker's novels and short stories apply these ideas. Rucker often uses his novels to explore scientific or mathematical ideas; White Light examines the concept of infinity, while the Ware Tetralogy (written from 1982 through 2000) is in part an explanation of the use of natural selection to develop software (a subject also developed in his The Hacker and the Ants. His novels also put forward a mystical philosophy that Rucker has summarized in an essay titled, with only a bit of irony, "The Central Teachings of Mysticism."