Yes, but again, these rely on different definitions of efficiency. I definitely don't consider multi-method interfacing to be useful to me at all in the books I

Yes, but again, these rely on different definitions of efficiency. I definitely don't consider multi-method interfacing to be useful to me at all in the books I read. I would much rather physically write notes if I want to commit something to reference or memory, since my brain has O(1) lookup where I wrote where something else is, but an O(n) lookup when I get to the note-bucket of my reference pools. Much easier to scan over a single page or a sticky note on the physical book surface than however long would be my library's notes as a totality.