A Contrarian Future for Minds and Machines

Most prophecies tend to be sensational, and today's predictions about tomorrow's computers and robots are no exception. In the June 19 issue of Time, devoted to "The Future of Technology," the author and inventor Ray Kurzweil tells us that by 2030, microscopic robots, called "nanobots," will be able to make a blueprint of your brain after you swallow -- yes, swallow -- a few of them. The blueprint will make it possible for a computer to replicate your brain in hardware that is 10 million

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