[more-coffee]

I have done this too for familiarizing with large/complex codebases (i.e. for a C++ game engine). Afterwards I usually felt like it was a waste of time (and paper) as I didn't reach back to those notes often. But that's because they had already served their purpose.

[drivers99]

I recently ran across a “How to Self-Study Math” video[1] which mentions the same idea, that you can throw out the paper after. I think I’d want to keep them.

[1] https://youtu.be/fb_v5Bc8PSk actual study method starting at 4:04. What to do with the papers around 6:16