Yes, the curse of knowledge. The new person only has industry jargon that everyone else will have and so they will describe any new concepts that way instead of with the circular logic the team has established. And that is often something I have to explain to the new person when they look dubious at the notion that they have any right to be touching the docs at all. They have more right than just about anyone.

It takes a really good teacher to be able to explain as easily to an intern as to a principal, and often the intermediate people have to take the beginners aside and reframe your explanations anyway. Whether you witness it happen or they do it where you cannot see, it happens.