From Ted Kacynski's "Industrial Society and It's Future":

48. It is well known that crowding increases stress and aggression. The degree of

crowding that exists today and the isolation of man from nature are consequences of

technological progress. All preindustrial societies were predominantly rural. The Indus-

trial Revolution vastly increased the size of cities and the proportion of the population

that lives in them, and modern agricultural technology has made it possible for the

Earth to support a far denser population than it ever did before. (Also, technology

exacerbates the effects of crowding because it puts increased disruptive powers in peo-

ple’s hands. For example, a variety of noise-making devices: power mowers, radios,

motorcycles, etc. If the use of these devices is unrestricted, people who want peace and

quiet are frustrated by the noise. If their use is restricted, people who use the devices

are frustrated by the regulations. But if these machines had never been invented there

would have been no conflict and no frustration generated by them.)