Artificial Intelligence's effect on the workplace and the economy.
"Microtechnology, unlike any past breakthrough, is the first to significantly increase the speed at which mental work can be accomplished. So far, most of these improvements have been limited to lower-order calculations, like adding or sorting files of information. But relatively minor advances in Artificial Intelligence could have an incredible compounding effect on the speed of the Information Revolution. Once computers a million times faster than an unaided mind can be harnessed for higher-order thinking, the equivalent of a million years' worth of design work could be accomplished in a single year. . . . As computational capacities compound by orders of magnitude, they promise to destroy the old economy just as surely as farming displaced foraging."
-- From The Great Reckoning, by James Dale Davidson and Lord William Rees-Mogg (Summit Books, 1991).