A few weeks ago, I spent a few days doing little other work than sitting and thinking about my problems. In 2012, I wouldn’t have dared do that. It would have felt like spinning my wheels. It would have felt lazy and self-indulgent. I would have expected to fail - and I would have been right. But now I can do it.
The difference is that I’ve practiced structured thinking, or model-building. Rather than talk a lot about what that is, I’m going to work through an example. Continue reading