That's a great article, thanks for linking to it. Energy can explain so much about human endeavours in so few words. I've read quite a lot of history, but Ric

That's a great article, thanks for linking to it. Energy can explain so much about human endeavours in so few words. I've read quite a lot of history, but Richard Rhodes' book Energy, A Human History, gave me a perspective unlike any other. Who would have thought that the laws of thermodynamics would be so important a mechanism for social science? Well, I suppose physicists might, but social scientists usually not.