Right on Cue

Nature has an article on the attempt to fit cyclical models to history.

CliologyI was about to say that interest in this subject waxes and wanes, but that is going too far. We do tend to forget the real attraction to Marxism in the early twentieth century was its promise to predict the future. These new mathematical models of history have never quite caught on in the same way [damn you mathematics!], but perhaps their time has not yet come.