Talent might be practice because you used the same part of your brain on other aspects of life.

For example, if you gamed early in life, this “practice” may contribute to you being good with your brain, which makes you “talented” in math.

Playing with dolls in early life may lead to being more creative, and this being more talented in drawing.

The practicing begins the moment you start interacting with the world.

Or something along those lines.