You can't ctrl-f a paper book. But how often do you need to? Large topics are in the index, and if you remember a detail but can't flip to it within a few se

You can't ctrl-f a paper book. But how often do you need to? Large topics are in the index, and if you remember a detail but can't flip to it within a few seconds, then you don't know the structure of the book well, and it will do you good to spend a minute or two looking around. I agree that there are many works where you want to instantly find a particular five sentences and read nothing else, but they should never become e-books. They should become some other form, such as a web site, a wiki, a set of man pages, etc.