Finally, self-explanation. Do it. When we are forced to try to explain concepts through self-inquiry, we will quickly discover what we do know and what we don’t know at all. These are called blind spots, and they are far more common than you might like to think. Can you explain why the sky is blue or how gravity works? Probably not off the top of your head, even though you think you understand those concepts. The Feynman technique is an offshoot of self-explanation that helps find blind spots as well, with an added component of using an analogy to explain what you think you know.
