ObservatoryNotes on focus.
Pieces on deep work, attention and distraction. Every statistic links to its source; if a number can't be traced, it isn't here.
6 Oct 202630 Sept 2026
Attention residue, explained without the hype
Why part of your mind stays on the last task after you switch, what Sophie Leroy's research actually found, and what a “drift” has to do with it.
How long does it take to refocus after a distraction?
The “23 minutes” figure is everywhere. Here is what the research actually measured, and what it means for your next phone check.