@writingslowly@aus.social looks familiar, got your request, after I boosted about "There's a fundamental flaw in how we learn about expertise". I haven't fully read the post (just scanned it). Was more or less on my way to bed. And now I've got 8 tabs open from your site.
I guess I do write, and I write about writing. But not like as my "thing" I am focusing on. I am not sure I'm really focusing on any one thing to be honest.
I mean, I know way too much about paper, paper weights, paper sizes, et cetera. Which I kind of realised when talking about paper with someone who I expect to know about things like that (like watercolour paper, vs. printing paper, vs. cover stock)... I should probably consider writing that at least somewhere in a clear form.