With paper I can put two or three pages side by side. Imagine needing 2 or 3 synchronized e-readers like that. And I can immediately draw on them, not worrying about what mode I'm in, what brush is selected blablabla. I can flip back and forth with my fingers etc. Downside is no search, no zoom no copy paste.

You can still copy paste and zoom.

Magnifying glass? Copy is hard, cut and paste, glue etc sure.

Yes to magnifying glass for zoom.

You copy with a pen or pencil, like the monks did.

Yes to cut and paste with scissor and glues.