The movie is a futuristic satire on modern life, set 500 years in the future where people have become dumber and dumber over the centuries. Unlike most futuristic stories, which assume endless progress, this one actually assumes the opposite: decline.
What is especially interesting is the underlying premise of the movie, which perennially has been discussed by academics over the last 25 years: Are we in a state of “de-evolution”? Is the average IQ becoming lower? For the first time in human history, the best and the brightest are often not reproducing, and the modern welfare state rewards and encourages those to reproduce who in past times would have been unable. What was once a privilege the welfare state has made a funded right.
Is de-evolution occurring, or is it bunk science? Regardless, Idiocracy provides a comical perspective on this possibility.