This article is part of the attention pillar, where the evidence on focus is kept in one place. TL;DR Nobody has established how long attention takes to recover from heavy phone use. Not because nobody looked — because the one study that looked found nothing. The single trial that related the size of a reduction…

TL;DR The exact 25-on, 5-off split has been through a randomized experiment once, in 2025. It produced no advantage in task completion, productivity or flow, and fatigue climbed faster than with self-chosen breaks. The “scientific proof” behind the interval traces to a technical report Francesco Cirillo published through his own company in 2007. No data,…

Hour-by-hour planning is built for planners, not for spontaneous, novelty-seeking people. Here is why it fails you and a flexible alternative that actually holds.

GTD, Deep Work, time blocking, Covey’s matrix and Lyubishchev tracking compared by failure type — pick the time system that fits how your week breaks.

Flow has entry conditions: right-sized challenge, clear goals, fast feedback. How to build sessions that reach flow, protect it, and get back in fast.