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Author, inventor and futurist Ray Kurzweil famously and accurately predicted that a computer would beat a man at chess by 1998, that technologies that help spread information would accelerate the collapse of the Soviet Union, and that a worldwide communications network would emerge in the mid 1990s (i.e. the Internet). Most of Kurzweil’s prognostications are derived from his law of accelerating returns — the idea that information technologies progress exponentially, in part because each iteration is used to help build the next, better, faster, cheaper one. In the case of computers, this is not just a theory but an observable trend — computer processing power has doubled every two years for nearly half a century. Kurzweil also believes this theory can be applied to solar energy.
Moravec's paradox is the discovery by artificial intelligence and robotics researchers that, contrary to traditional assumptions, high-level reasoning requires very little computation, but low-level sensorimotor skills require enormous computational resources. The principle was articulated by Hans Moravec , Rodney Brooks , Marvin Minsky and others in the 1980s. As Moravec writes, "it is comparatively easy to make computers exhibit adult level performance on intelligence tests or playing checkers, and difficult or impossible to give them the skills of a one-year-old when it comes to perception and mobility." Linguist and cognitive scientist Steven Pinker considers this the most significant discovery uncovered by AI researchers.