The only thing I can tell you from experience: Have the self confidence to drop a book, read what interests you, not what is on some "list of books" you have to work through. And take your time reading. I learned it the hard way, but I'd rather drop 10 books, find one extremely insightful, and read it slowly and carefully and twice if I have to than speed read 20 books and remember nothing.
I am extremely doubtful about "hacks" like this ; glad if it works for him, my experience is nothing of the sorts will ever work for me.