Had an armchair hypothesis last night. Yeast makes alcohol, and we basically domesticated it on accident. Beer/wine making goes back to the neolithic (at least), and we’re in a symbiotic relationship with it.

That part is pretty well established science, but the the hypothesis goes that alcohol reduces human inhibitions, which makes us fuck more, which means more humans who want to continue making beer and wine with the secret helper, yeast.

But maybe that’s not right and verging on evo psych territory of a hypothesis that has no strong evidence beyond fitting some known facts.