Time is a flat circle

Time is a flat circleThe [automatic machine/artificial intelligence] is not frightening because of any danger that it may achieve autonomous control over humanity... Its real danger is the quite different one that such machines, though helpless by themselves, may be used by a human being or a block of human beings to increase their control over the rest of the human race.Norbert Wiener, in "The Human Use of Human Beings", 1950