The video below is a comment on why humans do these "useless" things (part of which, I think, involves talking about other people talking about uselessness). What do you think?
And for those who are more into any of the writings and ideas of Dawkins, here is another video (this is quite long) which features him in a dialogue with the Archbishop of Canterbury, Rowan Williams, who, mind you, is one of the greatest minds of this century, a brilliant philosopher and theologian who frequently engages in friendly intellectual discussions with also one of the greatest theologians of our time, Joseph Cardinal Ratzinger or Pope Benedict XVI.