Comment by aristofun

You don’t need to retain it. It’s an artificial problem.

What is important will retain automatically by your subconscious.

And there is not much unique net new information in nonfiction books to begin with.

90% of it is a garbage made up with sole goal of getting into your pocket.

9% is rephrasing and redigesting same thousand year old ideas.

And 1% is small and memorable enough by itself.