If we took a college athlete (someone who plays sports). And had him try and solve the same physical problems that an internal person was presenting- he would solve the problems in the same way as the internal person. Without having to study 'internal'.
The thing is - they don't (figure it out, that is).
I haven't seen anybody, physically talented or not, figure this out in a conventional way. OTOH, there are a number of people around teaching who have figured it out the "regular" way.