How hard you work vs how efficiently you work. quality of practice/quantity of practice. It's like education, you have an advantage if the education is better, if the guidance is better. That doesn't mean that everyone can be anything they want and be the best at it, but it's also silly to assume that asians are more capable at a genetic level when they have a considerable environmental advantage due to the popularity of e-sports culture and high level of competition with which to develop skills against.