In perhaps his most famous quip of all time, celebrated physicist Richard Feynman once remarked, when speaking about new discoveries, “The first principle is that you must not fool yourself—and you are the easiest person to fool.” When you do science yourself, engaging in the process of research and inquiry, there are many ways you can become your own worst enemy. If you’re the one proposing a new idea, you must avoid falling into the trap of becoming enamored with it; if you do, you run the risk of choosing to emphasize only the results that support it, while discounting...