Or perhaps there is a 3rd explanation, spending all of your time with people much less intelligent is frustrating and unsatisfying, and being such an outlier, it's how most of your time is spent. Someone with a 142 IQ is to the 100 average in the same way that 100 average is to someone with a 70 IQ. We don't expect people with average IQ to spend all of their days with 70 IQ people (in a peer situation). (BLAH BLAH BLAH Multiple intelligences, IQ isn't a good measurement, etc)