I think the ability to concentrate and focus on a single task is going to become more and more useful, because it is so easy to give in to that temptation to flip away, just for a quick moment. I've been working on practicing mindfulness through meditation, and have thought of reading a book as a form of meditation (nice to see the author allude to that a little).
So your TL;DR: good article, read more books, re-learn how to focus on single tasking.