Totally agree with Genghis, especially r.e. talent versus effort.
In my experience talent gives an existing edge - but edges can always be sharpened from the bluntest of subjects with hard work.
The only exceptions are when you're made of an unsuitable material for the job. I may as well be made of sand when it comes to sport.
Naturally, however, the finest samurai steel in the case of flying
Capn