you might be interested to read this article where author touches on societal variation a bit: http://slatestarcodex.com/2017/08/07/contra-grant-on-exaggerated-

you might be interested to read this article where author touches on societal variation a bit: http://slatestarcodex.com/2017/08/07/contra-grant-on-exaggerated-differences/ http://slatestarcodex.com/2017/08/07/contra-grant-on-exagger...