> People don’t do quadruple axels on the ice because they were somehow born with the ability, they can do it because they practice figure skating every day for years.

You've changed my claim. My claim isn't that world-class athletes, or even good athletes, don't have to work hard because of their talent to achieve elite levels. It's merely that talent is a huge determiner in success. It's also a huge determiner in how effective training is. An hour of training might improve a talented person 5 or 10x more than an hour of training would improve someone else.

This is all blindingly obvious if you've seen a sample of kids growing up. I remember the sister of one of my daughters friends, at age 3, was easily out-performing her brother and my daughter, who were a couple years older. This little 3 year could fearlessly climb up jungle gyms with ease, and kick around a ball, and swim fast. She hadn't practiced more. She could just do it.

That's probably why some competitions are called Math Olympics.

OTOH maybe there is no posibility whatsoever that genetics can determine mind shape no matter what.