There are many people, I have heard, who go to an art gallery only once a year and that is to see the Summer Exhibition. The conventional wisdom is that the secret of the show’s popularity lies in the open competition, the biggest in the world. A panel of judges select from around 10,000 submissions, with no regard to the fame of the artist. It’s the art world’s version of Britain’s Got Talent. Here, for once, the great British public can see an exhibition that has no intelligent organising principle at all, ie where everyone is equal.