Dr. Hawley, sociologist with the University of Michigan, discusses the practicalities of building new cities or reducing old ones to a size of about 50,000 population. Using this as a rough yardstick of “dispersion,” he gives some admittedly crude estimates of the costs of such a program, for example, $35 billion would have to be spent on new housing in relocating 25 million people out of sixteen major cities. He concludes “barring the possibility of coercion from without,” the municipal governmental integration required for such vast movements of population seems to be in “the remote future.”