"Permutation City" by Greg Egan is a science fiction novel set in a future where people can create digital copies of themselves, known as "copies," and upload their consciousness into virtual reality. The story follows a computer scientist named Paul Durham who is obsessed with creating a perfect copy of himself. As he delves deeper into the possibilities of digital existence, he uncovers profound philosophical questions about identity, consciousness, and the nature of reality. Egan's thought-provoking narrative explores the ethical and existential implications of creating and living as digital beings.

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