I think I sometimes take for granted how far I’ve come in my learning about a topic because I mostly just see how much I still don’t know related to that topic.

You most often here compounding to describe the wealth-building power of leaving your money alone and allowing the growth of the principal to serve you well in the long run. Warren Buffett, also, has reminded us that learning works like this too and attributes much of his success to his habit of reading voraciously and to the powerful force of “compounding” learning:
“Read 500 pages like this every week. That’s how knowledge builds up, like compound interest.”

I have been reminded about how much I actually know about a topic when I teach someone else about it and have to be aware of everything I take for granted so that I can explain something to someone simple without making any assumptions that they understand ant jargon or basic concepts.

The way our knowledge grows over time is something I’d like to study more. Specifically, I’d like to learn more about statistics related to adult Americans and their actual consumption of new information over time AND I’d like to learn more about all the reasons certain people hit ceilings in their performance in a field: How much is truly the result of a lack of ability and how much is the result of an insufficient grasp of foundational concepts?