Hi “When, in the 1870s, the influential book The Limits to Growth used a computer model to predict impending doom, Smil was skeptical.” … I dont’t think there were any computers in XIX century ;)

Also … keto diet … really — almost no vegetables (up to 50g of carbo) or it’s not working. It’s a chemistry no a matter of debate … if it says do not add water — you don’t add even a small dose of it, right?

But it was really nice read, I’m looking for Smil’s books :-)