ROBOT—… A term used in the ancient legends of several worlds for what are more usually called “automata.” Robots are described as generally human in shape and made of metal, although some are supposed to have been pseudo-organic in nature. Hari Seldon, in the course of The Flight, is popularly supposed to have seen an actual robot, but that story is of dubious origin. Nowhere in Seldon’s voluminous writings does he mention robots at all, although …

ENCYCLOPEDIA GALACTICA