McKibben's book, just like Neil Postman's Amusing Ourselves to Death, is even more relevant to the internet age than the television age.
There is something insidious about "information" that's doled out like slot tokens at a casino. Something dangerous about "facts" that are carefully designed to fit with what we want to believe. Something manipulative about "teaching" that is designed to fit through the gaps in our mental defenses for the benefit of the "teacher".
This week I've met otherwise "normal" people who are flat-earthers, anti-vaccers, and who believe Hillary is a Satanist and Trump is the "Bringer of Light".
But ultimately who cares if your hairdresser is an anti-vaccer, or your tennis partner is a flat-earther? Does it really matter if that cute girl at the check-out is an anti-Semite? Does it harm anyone if the guy building your deck believes in zero-point energy?
So long as people fulfill their economic roles quietly and efficiently, does it really matter what's in their hearts and minds? It's all relative isn't it?