The median STEM PhD probably has[1] around a +2 SD IQ, but the median person with a +2 SD IQ does not have a STEM PhD or similarly impressive educational attain

The median STEM PhD probably has[1] around a +2 SD IQ, but the median person with a +2 SD IQ does not have a STEM PhD or similarly impressive educational attainment (2% of people have a +2 SD IQ but only 1.2% of people have PhDs, and only 20% of people with PhDs have STEM PhDs[2]). Your average internet rando does indeed have a lower IQ, but given that someone does have a +2SD IQ, that person is still more likely to be an internet rando than to be an impressive STEM PhD, for much the same reason as your average 6'4" person is more likely to be a car salesman than an NBA player despite almost all NBA players being really tall. [1] http://www.assessmentpsychology.com/iq.htm http://www.assessmentpsychology.com/iq.htm [2] https://www.statista.com/statistics/185353/number-of-doctoral-degrees-by-field-of-research/ https://www.statista.com/statistics/185353/number-of-doctora...