human interassociation tend to improve by acceleration. Speed, in turn, accentuates problems of form and structure. The older arrangements had not been made with a view to such speeds, and people begin to sense a draining-away of life values as they try to make the old physical forms adjust to the new and speedier movement. These problems, however, are not new. Julius Caesar’s first act upon assuming power was to restrict the night movement of wheeled vehicles in the city of Rome in order to permit sleep. Improved transport in the Renaissance turned the medieval walled towns into slums. Prior to the considerable diffusion of power through alphabet and papyrus, even the attempts of kings to extend their rule in spatial terms were opposed at home by the priestly bureaucracies. Their complex and unwieldy media of stone inscription made wide-ranging empires appear very dangerous