I spent an entire afternoon in university convinced I had mastered black hole physics. I could recite the equations, I knew the jargon, I even aced the practice problems. Then a friend asked one innocent question: “So why does time slow down near one?” I opened my mouth and produced a stream of vague hand-waving that would not have fooled a curious child.
That was the day I discovered the Feynman technique, named after Nobel Prize-winning physicist Richard Feynman, who said that if you cannot explain something simply, you do not really understand it. In my experience, this one method has done more for my learning than any course, app, or study hack. It is the closest thing I know to a cheat code for understanding.
In this article, I break down what the Feynman technique is, explain the science behind it, walk you through the four steps, and give you a 15-minute practice you can run right now. By the end, you will know how to learn anything faster by explaining it simply.
