Screens drain batteries too quickly.
Or text and background merge infuriatingly. The monitors of desktop machines also fall short, and it is not just the flicker of the cheaper models. If a deity had wanted us to read e-books, He would have given us cords and plugs, so we could skip the screens and let the words go directly from printed circuit boards to our brains. Suppose these displays were as easy to read as paper and sucked up less than a tenth of the battery power that other portable screens did. N o, this nirvana isn't here yet.