I sort of half agree half disagree. My mental model on this is that for a given skill/outcome everyone sits somewhere on a continuum of possibility with upper

I sort of half agree half disagree. My mental model on this is that for a given skill/outcome everyone sits somewhere on a continuum of possibility with upper and lower bounds depending on intrinsic factors. So, in that sense I agree there are those people who could develop a certain aptitude through a clear pathway of study. My model assumes their highest level of aptitude they can attain is capped at that lower than those who are "naturals". Conversely if you are a natural and you never seem to develop your aptitude, you will bumble along likely doing OK or even accidentally doing well, but those who can reach the absolute top of the aptitude spectrum are those who a) realize they are a natural b) seek out a pathway to accelerate their progress and c) actively work really hard at it.