How to Think in Writing

While we naturally understand that writing is a good way to share ideas with others, we under-appreciate just how much good writing helps us think about an idea ourselves. Writing is not only a means of communication, it enables us to practice reasoning.

If writing down your ideas always makes them more precise and more complete, then no one who hasn't written about a topic has fully formed ideas about it. And someone who never writes has no fully formed ideas about anything nontrivial.