Its more the fact that there was a birth rate bulge from 1945-1955. I don't think talent is really all that more rarer than it once was, but as quick as all the majors were born all at once, they'll probably all start dying at the same time too. We might see Lucas, Spielberg, Coppola, Scorsese, Ridley Scott, Harrison Ford, Dustin Hoffman, John Woo, Pacino, DeNiro, Walter Murch, George Romero, Schwarzenegger, Michael Douglas, Richard Donner, Terry Gilliam, Christopher Walken and Jack Nicholson all die within years of each other. I think the celebrity death watch will really make visible the aging crisis in the USA when that starts to happen.