Deep Work Session

What this is

A 90-minute block of undistracted work, set up the way the concentration research actually suggests: one task, no inbound anything, a defined end. It's a session template — copy it each time rather than working through it once.

Decide the task before the session, not during it

The most common way a deep work block dissolves is starting it without knowing precisely what done looks like, then spending twenty minutes deciding, which feels like working and isn't.

Name a single output. Not work on the report — draft the findings section. Vague scope invites the drift toward email.

Removing distraction means removing it

Not muting. Notifications off, tabs closed, phone in another room, chat applications quit rather than minimised. The research on interruption is unambiguous: the cost isn't the seconds spent on the interruption, it's the several minutes of degraded focus afterwards, which is why a quick check is never quick.

Tell people you'll be unavailable for ninety minutes. Almost nothing requires a faster response than that, and the anxiety about being unreachable is usually larger than the actual consequence.

Expect the first fifteen minutes to be unpleasant

Concentration takes time to build, and the urge to look at something else is strongest at the start. That discomfort is the session working, not failing. Most people quit during it.

Close deliberately

Write down where you stopped and what comes next. Tomorrow's session starts warm instead of cold, and your brain stops rehearsing the unfinished thread in the meantime.

Timing

Plain checklist, run per session. One or two blocks a day is a sustainable ceiling for most people.