“Writing is thinking.” I like that turn of phrase. If I want to figure something out or am working on a difficult problem writing is a good way to think it through. It helps me see the problem from a different perspective.
I often do this when I don’t know how to say something in an important conversation or just haven’t quite thought something through. I write. I think. And I get further than if I don’t.
I don’t just write when I have something figured out, I write so that I can figure it out.
There’s just something about seeing it on a page that helps me see the situation more clearly than I do in my own head. No one ever needs to read it, it just helps me think.
P.S. I heard the phrase “Writing is Thinking” from Jordan Peterson, but the concept is much older.