In some of his recent keynotes (especially the later quakecon ones) he focuses a lot on how he's changed his mind and that he now believes that software develop

In some of his recent keynotes (especially the later quakecon ones) he focuses a lot on how he's changed his mind and that he now believes that software development has a lot of "social science" aspects to it. I think he's given a lot of consideration to how one manages a software team, and even though he sometimes disappears into his office to write something like this Netflix app, he still does manage people.