I have found that preparing to explain something makes me think and research it more, and understand it better. Some things that I sorta-knew how to work and w

I have found that preparing to explain something makes me think and research it more, and understand it better. Some things that I sorta-knew how to work and where they come from became my own intellectual possessions, instruments, and later part of the toolbox, once I got to know them good enough to pass the workings on to someone else. That third party needn't even exist, once you get the hang of learning new and lesser-understood stuff that way.