I genuinely feel like there's two camps of professionals: those who know how to do something and do it extremely well; and those who know how to describe someth

I genuinely feel like there's two camps of professionals: those who know how to do something and do it extremely well; and those who know how to describe something and break it down very well. The former are the ones making the magic happen, like Fabrice Bellard. The latter become very influential teachers like Bob Martin. Both are needed (although the former more so), but the latter usually get all the attention and credit.