What has our culture lost in 1980 that the avant-garde had in 1890? Ebullience, idealism, confidence, the belief that there was plenty of territory to explore, and above all the sense that art, in the most disinterested and noble way, could find the necessary metaphors by which a radically changing culture could be explained to its inhabitants.

The best way to measure the loss of intellectual sophistication - this "nerdification," to put it bluntly - is in the growing disappearance of sarcasm, as mechanic minds take insults a bit too literally.