Wanna know what the giant difference is between previous societies and the current global situation? Food. OK, food and population. Right now we have a way overblown global population because we use petroleum inputs to get ever more food. He doesn't mention innovation in the realm of agriculture, but in some ways that's probably the area most desperately in need of innovation if the oil goes away.

The world's population didn't shoot up way beyond sustainable levels until after the Green Revolution, so if someone like Sass were to think about this problem in terms of the die-off issue, he get started working on ways to keep high food yields without synthetic fertilizer right away.

Yeah, I think about population and food all the time. Which part of America's non-negotiable lifestyle will give way first? Eating meat or suburban, autocentric lifestyles?

IMHO, meat at every meal will go first.

I read a little about the Great Depression lately and as early as 1930, people's diets got pretty lean pretty quickly.

Goodbye pork chops!