Postsingular is a 2007 science-fiction novel written by the American writer Rudy Rucker. It focuses upon a cast of San Franciscans and their relationship with emerging uses of nanotechnology. It was the first of his works to be licensed under a Creative Commons license and released to the public on the Internet.
A sequel, Hylozoic, was released in 2009, but was not released under a free license.
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