[jamisteven]

I feel like ever book ive ever read, on any programming language, makes me immediately want to pound my head into my desk. Nothing against the author, its just so clear that as it pertains to programming, being good at programming, and the teaching of it never come hand in hand. Same goes for real life, some of the best data scientists I work with, cant for the life of them explain concepts, and then the ones who are great at explaining it, can rarely execute with the same eloquence.

[stevewodil]

This is true for a lot of things! For example, the famous artists that perform the music on stage (nowadays, at least) likely didn't write the song they are singing.

Teaching and executing are two separate skills. Fun little anecdote, in high school I had this AWFUL science teacher. He would literally just have us watch Crash Course videos to get the concepts. Turns out he was a relatively distinguished scientist himself..