At the top end, performance levels are determined by intrinsics perhaps genetics, perhaps not). If I had been coached in basketball every day since birth I coul

At the top end, performance levels are determined by intrinsics perhaps genetics, perhaps not). If I had been coached in basketball every day since birth I could have become a very good basketball player. I would have probably been the captain of my high school team despite being 5 foot 6. However there is ~zero chance I would gotten to the level of playing in the NBA. Anyone can get better at anything, but they will ~always be worse than someone.