I spend quite some time without thinking much at anything. Often when I walk, or sit, or just attend to ordinary activities, I like being quiet and silent inside. But I like thinking, namely, I like trying to articulate and spelling out what often seems intuitively clear and interesting, but at first also a bit mysterious. The point is not to take the mystery away, but just to fully understand what the mystery is about. Over the past four months or so, I transitioned from a very still and re...