You know that feeling when a project finally works, and suddenly you’re terrified to touch it? Maybe it’s a script that took weeks to get right, a configuration that finally stopped throwing errors, or even a chapter in your novel that perfectly captures what you were trying to say. The project has become valuable—too valuable to risk breaking. So you find yourself tiptoeing around it, making smaller and smaller changes, or worse, avoiding changes altogether even when you know they’d make things better. ...