Proffesionals Marrying Professionals

John Derbyshire:

our cognitive elites are increasingly inbred. Doctors used to marry nurses, professors used to marry their secretaries, business moguls used to marry starlets. Now doctors marry doctors, professors professors, moguls moguls, lawyers lawyers, etc. Those “modest origins” of our meritocratic elites are less modest by the year. We might be drifting towards a caste system, except that meritocracy requires some openness, some vacuuming-up of high-I.Q. outliers from the lower classes, some dumping of low-I.Q. duffers from the elites.