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.
So combined that's just three hours of focused work, which may not seem like a lot, but if you were to dissect your day and kind of look at the arc and structure of your day, I'd be willing to bet that if we added up the total period of time in which you were in deep work, really focused, dedicated work, that it would probably amount to about 3 or 4 hours.
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 really emphasize that morning 90minute work block because I think most people would agree that there's a portion of each day in which we need to do the hardest thing or the most important thing or the thing that demands the most of our cognitive self. I position that early in the day and I position everything around that in order to ensure that it happens and that it happens with the highest degree of efficiency even though that morning 90minute work block is so vital.