[saeranv]

That's an interesting idea. Do we know what is different about the brains of geniuses that could be replicated by changing how the brain grows or consumes fuel in a normal pereson? I know descriptions of "high-IQ" and "normal" are extreme simplifications of a complex, multidimensional concepts, but I have to imagine someone like John Von Neumann who apparently never forgot anything he read, has had to have had something physically different in his brain.

For example, do we know if high IQ/abilities are associated with more neural connections in the same brain volume?

[kaba0]

Not really answering your question, but many Nobel-prize winner people were of Ashkenazi origin, who have some genetic changes that can cause serious neural problems, but at the same time these genes may be responsible in part to their genius.