Excellent video. I do have to mention that Germane Load is an old concept. In the newer model it is called Optimized Intrinsic Cognitive Load -> Working Memory devoted to the creation or automation of cognitive schemata.

Confusion about what it means to own a book leads people to a false reverence for paper, binding, and type —a respect for the physical thing—the craft of the printer rather than the genius of the author. They forget that it is possible for a man to acquire the idea, to possess the beauty, which a great book contains, without staking his claim by pasting his bookplate in-side the cover. Having a fine library doesn't prove that its owner has a mind enriched by books; it proves nothing more than that he, his father, or his wife, was rich enough to buy them.