Interesting, but scientifically, the opinion expressed in the song/video is wrong. Since evolution exists, de-evolution does not. According to science, species evolve to improve or adapt to their habitat. Thus, a species can not go backwards. BTW, a person who does not have the glib speaking ability of say, a Bill Clinton or a Ronald Reagan, is not necessarily a dullard. Dr. Hawkings could not speak at all without the aid of technology, but he was arguably the most intelligent person on the planet.