when you use well-known brands.” Like money and clocks and all other forms of measurement, numbers acquired a separate life and intensity with the growth of literacy. Nonliterate societies had small use for numbers, and today the nonliterate digital computer substitutes “yes” and “no” for numbers. The computer is strong on contours, weak on digits. In effect, then, the electric age brings number back into unity with visual and auditory experience, for good or ill. Oswald Spengler’s The Decline of the West originated in large part from his concern with the new mathematics. Non- Euclidean geometries, on one hand, and the rise of functions in number theory, on the other, seemed to Spengler to spell the end of Western man. He had not grasped the fact that the