Source: https://kupajo.com/write-to-escape-your-default-setting/

Really like how this is framed:

Writing provides scaffolding. Structure for the unstructured, undisciplined mind. It’s a practical tool for thinking more effectively. And sometimes, it’s the best way to truly begin to think at all.

and

We spend more time mentally rehearsing activities than actually doing them.

The author also mentions things we already knew - writing helps show you the blind spots and gaps in your knowledge.

And finally, this entire quote about what to do when you encounter a rummaging thought:

...write it out. Be fast, be sloppy. Just as children ask why, why, why, you can repeat the question “why do I think/feel/believe this?” a few times. What plops onto the paper may surprise you. So too will the headspace that clears from pouring out the canned spaghetti of unconnected thoughts.

I am trying to take on this advice. Its hard to make writing a priority, especially on topics that are challenging and nuanced - it is far "easier" to let my thoughts spin down the doom funnel...but I'm slowly making progress.