The machine world reciprocates man’s devotion by rewarding him with goods and services and bounty. Man’s relationship with his machinery is thus inherently symbiotic. This has always been the case; it’s only in the electric age that man has an opportunity to recognize this marriage to his own technology. Electric technology is a qualitative extension of this age-old man-machine relationship; 20th Century man’s relationship to the computer is not by nature very different from prehistoric man’s relationship to his boat or to his wheel – with the important difference that all previous technologies or extensions of man were partial and fragmentary, whereas the electric is total and inclusive. Now man is beginning to wear his brain outside his skull and his nerves outside his skin; new technology breeds new man.