The headline is broadly defensible, but the qualifications matter. Effect sizes vary by population, the strongest claims rest on shorter trials, and credible voices push back on how it's typically framed.
Do you take vacations or extended breaks from these ultradian rhythm sessions? And the short answer is no. Typically, I try and do this every day-- and yes, even on the weekends. But on the weekend, the ultradian rhythm focused learning bout might just be reading a book for about 90 minutes or so, which might not be as cognitively difficult as it is for other sorts of work that I perform during the week.
Every Sunday: the week’s new conflicts and verdict changes — and nothing else.
Native comments, Twitter mentions, and Reddit threads about this claim — surfaced together so the conversation isn't fragmented across platforms.
Bookmarking — the dossier-vs-overview split is the right call. Most of the time I want overview; sometimes I want receipts.
Would love a "what would change this verdict" RSS feed. Sign me up if it exists.
I tried to get at least one of these focused ultradian rhythm blocks per day. That is a period of about 90 minutes where I'm focused on learning something or doing something that's cognitively hard, although typically I aim for two of these sessions per day.
I do use ultradian rhythms-- that is, I leverage the fact that these do exist in all of us as a way to engage in focused bouts of mental work once or twice, or sometimes three times per day.