Information is everywhere, attention is scarce, according to Chris Hayes, the author of The Sirens’ Call. And it is being commodified, in almost every way we can think of, and a few that are beyond most of us. Right on social media, your attention is directed. I just saw yesterday that some videos we liked are being shortened. Why? Because it has been noted that people don’t watch them all the way through. How about those ads? Attention grabbers, aren’t they?

And, now, online, you can’t even ...