Or, what I think people are talking about when they equate thinking and writing
I looked up the Cormac McCarthy essay because it reminded me of this. Then I realized you’d already linked to it.
I wonder if writing just lets you distribute your cognition where your brain needs to only focus on a small part at a time, then you can go back and focus on bits and pieces here and there. Kind of like a Turing machine reading from tape. You can write something down and then iteratively improve on it from there. Perhaps the act of writing forces you into a sort of dialogue with yourself. You write it down, then come back and realize you weren’t as smart as you thought you were when you first wrote it. Or maybe that’s just me.