I know this article is supposed to be centered around Tim Ferriss but the meat of it, to me, was about how Amazon was walking right into the turf of book publishers and setting up shop.
Hey book publishers, you shouldn't be concerned at all, because you've seen this coming for years. They made and popularized the Kindle, and you could have made a huge and radical shift toward digital copies of books and including them in your contract negotiations.
Oh, but I guess you could have never seen this coming. Learning from the music and movie industry must not have been an option.
Come on guys!