When I was working through his Purescript book (and later watching some of his videos) I had the same problem. He strikes me as one of these very intelligent people who have difficulty explaining what he's talking about because everything is so clear to him.

What I found with the previous things I've seen from him is that if I write some code I get stuck. Then I look at what he wrote again - lo and behold, he has the answer. Rinse and repeat. I've learned a ridiculous amount from him in this fashion :-)