Random “Einstein quote”: “If you can’t explain something well, you don’t really understand it.” Modus tollens to modus ponens: “If you really understand something, you can explain it well.” Had we ever asked Einstein how to create a great course, this might have been his sentiment.
But we need not go beyond the comfort of our tribe to find this meme. Our very own Peter Singer expressed it just as well when he mentioned his suspicion that “whatever cannot be said clearly is probably not being thought clearly either.”
If we want high-quality explanations, we need high-quality understanding. Not just quickly scrolling through a few papers the night before a meeting, but perusing them and summarizing them with attentive review.