The Dream of Descartes began with the possibility of automating geometry. It was inevitable that one would think next of the possibility of automating all thought and judgment. One then advanced to the proposition that natural language is computation, that vision and the other senses are computation, and that emotion is computation. Computo, ergo sum seems to be the ultimate expression of the Cartesian insight. It abandons humanity, replacing it by an abstract surrogate.

Philip J. Davis and Reuben Hersh, Descartes' Dream: The World According to Mathematics