I read somewhere (and after 30 minutes of searching, can&#x27;t find the original source but will keep trying) that at IQ 130, the correlation between parental IQ and child IQ was pretty high (ie. the mean parental IQ was ~127). But for kids at IQ 160, the mean parental IQ was only slightly above average (I think it was ~102). This suggests that there is a mass of upper-middle class professionals who have similar children, but that true genius (as measured by IQ) is rare and unusual, and usually more of a burden than a gift, given the lack of a suitable environment around that individual. So the success-comes-easily IQ 130 cohort are actually not the geniuses people laud them for being, and the IQ 160 cohort is probably just deeply misunderstood and comes from a (relatively) darker, more normal childhood.