Men wanted to be strong. One way to be strong was to be knowledgeable. In so many areas, it was not possible to be knowledgeable without getting a Ph.D. and doing a postdoc. Guns and hunting provided an out for men who wanted to be know-it-alls but who couldn’t afford to spend the first three decades of their lives getting up to speed on quantum mechanics or oncology

Men wanted to be strong. One way to be strong was to be knowledgeable. In so many areas, it was not possible to be knowledgeable without getting a Ph.D. and doing a postdoc. Guns and hunting provided an out for men who wanted to be know-it-alls but who couldn’t afford to spend the first three decades of their lives getting up to speed on quantum mechanics or oncology (Neal Stephenson, Reamde)