Dont forget. We are 400 years in the future. Probably, still on Earth.
Currently. I can easily highlight in 4 different colors very quickly, make a note here and there if I want. I read most of the time, at least for now, on my mobile. I probably can hold 50 books or possibly more in the palm of my hand or in my back pocket. And this is only 2017.
I’m sure there will be a time where a screen may be hard to discern from real books we use today. Scribbling is already here for the most part, but needs refining.
I have a tall bookcase full of books at the moment in my living room. They often seem lonely, but they are not entirely neglected, by any means.