Giftedness is more about being developmentally more advanced and having high ability and/or potential in some area. It makes them out of sync with their peers. There are many theories, one of which is Dabrowski’s over excitabilities, but in essence they do function differently from others.
Some gifted students are high performing students but a surprisingly number are not. Many gifted kids struggle with motivation and persistence. True gifted programs deal with the needs of gifted kids development — the so called gifted programs in schools today are more like accelerated classes which have little to do with developmental needs. Giftedness is a special need on the other side of the spectrum.
I think we all know the type: really intelligent kid but amounted to not much in life. (The most well known pop culture portrayal was Good Will Hunting although that’s all fictionalized and not gifted kid is at that level — there are different levels)
in some field.
async development is a significant challenge for gifted kids
Social skills for instance is another are where the growth is uneven. A gifted kid may be advanced in their reading levels but may not yet have figured out how to behave maturely in a group or read social cues. (Sometimes it resembles ASD but the difference is that ASD might lack the ability in general whereas with gifted kids it just comes later IF they have the right support)
When you enter college at 12 it is beyond a "slight genetic advantage" IMO.
And it's not just genetic. A gifted kids was given the gift of having parents who care, who put in the work and who have the means to put in the work.
I don't know, I think both things (predisposition and hard work) can be accepted as true.