If you deep dive into any subject head first, all in, you tend to get pretty decent at it but you have to have passion and grit to do that and not everyone does

If you deep dive into any subject head first, all in, you tend to get pretty decent at it but you have to have passion and grit to do that and not everyone does. There are some people with exceptional intellect but those types are very rare so being good is achievable for most of us but being Elon or Carmack or Hassabis isn't.