At the time it felt cute, a nice flourish. But over the years, the idea has sort of grown into me. I find that during the day, my critical mind is quite active & wants really exact precise things. Expectations can be large & slow down just letting things pour out of me. Now, this isn't the same in-between sleep/waking state as the article, but at night a lot of my concern goes away, and I can just enjoy things, work on things, uninhibited. Let it flow. Some level of tiredness can help.
I would like to be better about the flip side. I think the morning is another interesting, that a lot of people use well & love. Before the world is really awake, seizing the moment. Ursala Le Guin wrote about her daily routine, which involves waking prompty & writing writing writing. I feel like there's likely strong similarity. But also it sure feels good to have a bunch of work under your belt at the beginning of the day, right away. https://www.openculture.com/2019/01/ursula-k-le-guins-daily-...