We are certainly coming within conceivable range of a world automatically controlled to the point where we could say, “Six hours less radio in Indonesia next week or there will be a great falling off in literary attention.” Or, “We can program twenty more hours of TV in South Africa next week to cool down the tribal temperature raised by radio last week.” Whole cultures could now be programmed to keep their emotional climate stable in the same way that we have begun to know something about maintaining equilibrium in the commercial economies of the world. (p. 28)
Marshall McLuhan, Understanding Media (1964)