Let an ultraintelligent machine be deﬁned as a machine that can far surpass all the
intellectual activities of any man however clever. Since the design of machines is one
of these intellectual activities, an ultraintelligent machine could design even better
machines; there would then unquestionably be an “intelligence explosion”, and the
intelligence of man would be left far behind. Thus the ﬁrst ultraintelligent machine is
the last invention that man need ever make. (I. J. Good – 1965)
As quoted by David J Chalmers in his paper The Singularity: A Philosophical Analysis.