> intelligence was inversely related to sanity That stands to reason, if we assume that evolution arrives at largely efficient (specifically locally optimal) s

> intelligence was inversely related to sanity That stands to reason, if we assume that evolution arrives at largely efficient (specifically locally optimal) solutions: any trait that comes in handy would be selected for until its negative consequences (on average) just compensate any further increase. This would predict that higher intelligence is correlated with something detrimental, whether it be insanity or something else. EDIT: Someone said it much better here: https://news.ycombinator.com/item?id=26573055 https://news.ycombinator.com/item?id=26573055