> Cognitive ability is largely biological/genetic and can't be "trained up" so to speak
Would you share evidence? How are you defining 'cognitive ability'?
The idea that cognitive ability doesn't benefit from education is unbelievable - the opposite of experience and of what I understand.
This disagreement sounds like what I've heard about fluid intelligence vs crystallized intelligence.
Education helps channel cognitive ability into useful pathways, but you either have something to channel or don't.
Though I'd go with innate over genetic: leaves more room for nurture and epigenetics and doesn't make one sound like a white supremacist.