You also don't get the physicality as part of recall with eInk over real books. When reading technical books, as an example, I often would look back when going

You also don't get the physicality as part of recall with eInk over real books. When reading technical books, as an example, I often would look back when going to review something based on where it was physically in the book... I completely lose that with ebooks.. I still mostly use ebooks and online docs these days all the same because moving hundreds of pounds of books when you move sucks.