But I'm curious how other people square this circle.
But I'm curious how other people square this circle.
I didn't used to keep notes. Then about 6-7 years ago, I decided I would (for nonfiction books that seem to contain lessons).
Why?
Because I realized I retained very little of the book a year down the road. So I asked myself why I was reading these books if I'm not absorbing the lessons contained therein. Without retaining that knowledge, the reality was that the only benefit they provided me was entertainment. And nonfiction pales in comparison to fiction for entertainment value (at least for books like Sapiens, etc).
So I decided that either I should stop reading them and simply read more fiction instead, or I continue reading nonfiction and take decent notes I can refer to later.
I picked the latter.
And yes, it has the downsides you mentioned: I cannot even read a fifth of the books I used to as taking notes is time consuming (and my notes are still a lot rawer than his). I don't think I mentally retain that much more than I used to, and I still wonder whether I should just stick to fiction. But going back to reading nonfiction without taking notes seems like the worst of both worlds - you get inferior entertainment, and you don't really learn much.
The one exception where I literally took like hundred of notes was from the book "This is how they tell me the world ends" which has a 50 page word file that you can download from the author's site that contains all the bibliography and online resources she used to write the book. I've gone through each and every one of the references. There are thousands of them in there.