Going to Yale is not proof positive that he has no learning disability or other handicap. He talks about failing to initially qualify for the gifted program in school and working to make it happen, then continuing to push. This is what fits the "looks average, but isn't" pattern common for 2xe types.
When I was active in the online gifted community, it was well known that the higher the IQ, the more likely it was that someone also had OCD, ADHD, Asperger's or similar. This was so common that some people referred to such conditions as "comorbidities" of giftedness, in part for lack of a better word, in part because these were support groups for parents of gifted kids. Because they were support groups, it was an environment where people complained a lot about the downside of being smart, which, among other things, tends to come with a boatload of social BS that is incredibly unpleasant.