Have you ever been hungry for lunch and not able to focus on anything, let alone accomplish anything, until you get some food? Your attention is on one thing: getting food—now! Sweet or salty, it doesn’t matter as long as it gets in your mouth—now. This is your utmost goal and the focus of your actions. Everything else is put aside or is addressed only half-heartedly. Until you get a hold of some food, you have no interest in discussing, starting, or working on any other project. As you read...