"But where will this mania for entertainment end? What will people do when they get tired of television? When they get tired of movies? We already know the answer—they go into participatory activities: sports, theme parks, amusement rides, roller coasters. Structured fun, planned thrills. And what will they do when they tire of theme parks and planned thrills? Sooner or later, the artifice becomes too noticeable. They begin to realize that an amusement park is really a kind of jail, in which you pay to be an inmate."