I scored ~145 on a recent WAIS assessment (with low to average processing scores) and I could train most children to do the same if they started early enough.

That's basically what my upper middle class parents did for me, as the tests were very similar to games I was given since a young age. Of course there are other more important developmental factors like health, stability, and nutrition but those are easier with money too.

Most of HN seem to support a form of modern eugenics.