This one is for the bucket "Geniuses are made, not born", and kind of supports the thesis that early habits are important.
Another point the author misses is the medical trajectory. If you have ever done math under viral fatigue or low blood sugar, you can appreciate that many people probably operate their whole life under what others would consider "brain fog".
I think that important in this context is to consider Polgar's experiments on his own daughters: https://en.wikipedia.org/wiki/L%C3%A1szl%C3%B3_Polg%C3%A1r
This one is for the bucket "Geniuses are made, not born", and kind of supports the thesis that early habits are important.
Another point the author misses is the medical trajectory. If you have ever done math under viral fatigue or low blood sugar, you can appreciate that many people probably operate their whole life under what others would consider "brain fog".
And doesn't conflict with the conjecture that heredity sets boundaries on what can be achieved...