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December 13th, 2004

Down with goo, up with AI!

In the early years of speculation about risks and benefits of nanotechnology, a primary concern was so-called gray goo, hypothetical runaway self-replicating nanomachines that could, if unchecked, consume the planet. In more recent years, worries about such goo have receded, at least among the cognoscenti, and have been replaced by other fears.

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