“For decades, we’ve worked under the assumption that mass culture follows a path declining steadily toward lowest-common-denominator standards, presumably because the ”masses” want dumb, simple pleasures and big media companies try to give the masses what they want. But the exact opposite is happening: the culture is getting more cognitively demanding, not less. You have to integrate far more information than you would have a few decades ago watching a comparable show. Beneath the violence and the ethnic stereotypes, another trend appears: to keep up with entertainment like ”24,” you have to pay attention, make inferences, track shifting social relationships. This is what I call the Sleeper Curve: the most debased forms of mass diversion — video games and violent television dramas and juvenile sitcoms — turn out to be nutritional after all.”