It takes a certain minimal intelligence for the truly dim to have a notion of their own dimness, but this is denied him. Unlike Mr Tony Blair, who emerges from his well-calibrated if often chilling memoir as a man of colossal cleverness (though not intellect), W has the self-awareness of a bison. There seems even less to him than met the eye, and there was precious little of that. Astounding as it appears, we misoverestimated him.