My wife and I are using the Feynman technique to explain cryptocurrency to each other before making investment decisions, but she focuses on the technology when she explains and I focus on the economics, and neither of us can actually explain the parts the other person emphasizes. We're realizing we each understand completely different aspects of something we thought we both 'got'.
More people experience this than they realize.
Partners may develop specialized understanding that creates an illusion of shared knowledge until simple explanation reveals the gaps in each person's grasp.
“Where Are You with The Feynman technique?”
If this sounds familiar, the Library can help you find the bigger picture.