This makes no sense. A smart but poor kid does not have the option to move to a rich suburb with excellent schools.
> so if you have a really smart kid you aren't nearly as likely to find that kid still in the trailer park when they are 30 as one of their more average peers.
1. But, you're just as likely to encounter that extra bright kid smoking pot in a trailer home in 20 years. Poverty is a hell of a burden and barrier. Intelligence can help you stay out of poverty, but it's far less powerful when you want to get out of poverty. And can even function as a disadvantage.
2. Furthermore, lots of dumb but rich kids will go on to six figure incomes for the rest of their lives.
Intelligence isn't as strong a determinant as you claim, in either direction.