Hunt ([ 15 ], p. 158) noted that “the personal experiences of most college/university students is restricted to populations that have substantial range restrictions with respect to intelligence,” and provided an example showing that students at University of California-Berkeley and students at California State University-Long Beach, for example, overlapped very little in terms of cognitive ability. Because of this “cognitive segregation,” which is evident in both Study 1 and Study 2 of this paper, many highly select pools of students from elite schools, which by and large are the source of numerous leaders of society as Study 2 indicates, go through education and life without having exposure to students in the full range of cognitive ability. Supplementary A and Figure 1 can give an understanding of when a large proportion of students at a given school do not overlap. For example, the 25th percentile SAT score for Harvard University is 1410, indicating that 75% of Harvard students score at or above this mark. University of North Carolina-Chapel Hill, one of the best and highly selective public institutions, has a 75th percentile SAT score of 1410, indicating that 75% of UNC students score at or below this mark. The majority of students at Harvard and UNC-Chapel Hill do not overlap in terms of general cognitive ability, though 25% do. The same can be said for UNC-Chapel Hill and a school with a much lower middle 50% of scores, and so on throughout the full range of schools. This separation by cognitive ability is already evident in the data we show in this paper, but because students who are admitted to college or university have already been cognitively screened, in the wider society cognitive segregation is an even larger issue. The impact of such insularity in terms of the range of individuals one is exposed to especially in higher education, who they choose to marry and socialize with, and the impact of that on society is something that may be worthwhile to explore in future research.