Earlier quoted context omitted.
The thing is that people tend to appear to think it's black magic rather than familiarity with a toolset and a deep understanding of the problem.
That's not all it is. Some people are just better than others. No matter how hard every tries to be the best football or basketball player, only an extremely small set of people even have the chance to make it. There are physical traits they'll never have and mental fortitude to use those traits. You can't grow yourself to 7 ft tall and you never will be able to. What makes you think the brain is any different.
Being born with high intelligence and favourable traits is not an achievement.