Slightly uncomfortable viewing - simply because I fear it may be a little bit too accurate in it's predictions!

"A narrator (Earl Mann) explains that in modern society, natural selection has become indifferent toward intelligence, so that in a society in which intelligence is systematically debased, stupid people easily out-breed the intelligent, creating, over the course of five centuries, an irredeemably dysfunctional society. Demographic superiority favours those least likely to advance society. Consequently, the children of the educated elites are drowned in a sea of sexually promiscuous, illiterate, alcoholic, degenerate peers." More on Wikipedia.

Watch on YouTube.