The Economist (via pasta and vinegar) muses about what will happen when books go digital:
"Most stories, however, will never find a better medium than the paper-bound novel. That is because readers immersed in a storyline want above all not to be interrupted, and all online media teem with distractions (even a hyperlink is an interruption). People do not read fiction in order to accomplish a specific task in a limited amount of time, as they read reference and schoolbooks. Random-access dictionaries and cookbooks may be useful; random-access novels less so."
A lot like TV then.