For most cases, I agree. I think almost anyone with the time and determination can get to 95th percentile or up in a non-physical pursuit. Intelligence becomes a key determinant if you want to break the top 0.1%. Most people of average intelligence could become a top 5% programmer if they wanted to, but getting 2 minute solutions on Advent of Code? Almost certainly not. (I pick AOC because I've been looking into the folks who hit the leaderboards and they all seem to give off high IQ vibes so far.)