Why That Rose Does Not Smell As Sweet When You’re Upset

“It’s no secret that smell is intimately tied up with emotions, and things like real estate agents baking cookies in houses they show is an attempt to have the warm feeling produced by that fragrance transfer to the property. … What we’re learning is how physically tied up the two systems – the one that rules emotions and the one that rules smells – are.”

It’s In The Data: War Historically Drove Innovation, Not Agriculture

The standard theory, which Turchin calls the “bottom up” theory, is that humans invented agriculture around 10,000 years ago, providing resource surpluses that freed people up for other ventures. But what Turchin and his team have found is that the bottom-up theory is wrong, or at least incomplete. “Competitions between societies, which historically took the form of warfare, drive the evolution of complex societies,” he says.