air conditioning

I doubt that air temperature was what EY was alluding to. The “From Cro-Magnons to Consumers” parable (p. 2) and “The Natural-Living Test” (p. 331) in Spent by Geoffrey Miller make the point I think EY was trying to make much more clearly.

(And even wrt air temperature, don't fall for the typical mind fallacy. I mean, all those people going on summer holiday in Florida can't be all masochists, can they? My mother's favourite temperature is at least 5 °C higher than mine.)