Ever get the feeling that you've seen it all before? University of Connecticut researcher Peter Turchin has, and he (along with Russian partners Sergey Nefedov and Andrey Korotayev) has even crafted an entire scientific theory around the idea. Cliodynamics, as it's called, works on the view that broad trends of history occur in predictable patterns based on common factors like government strength, population size and social inequality. The surprise to Turchin is that viole
