The Effort Metric (Measure Attention, Not Completion)
Track 'did I do what I said for as long as I said without distraction' instead of whether you finished.
- Difficulty
- Easy
- Time to result
- ~weeks to results
- Steps
- 3
- Confidence
- 90%
The right productivity metric is not 'did I finish the task' but 'did I do what I said I was going to do, for as long as I said I would, without distraction.' This gives you a feedback loop on how long work actually takes, defeats the planning fallacy, and — counterintuitively — gets more done than chasing completed checkboxes.
Origin
Nir Eyal's reframe from Indistractable, built as a corrective to to-do-list culture and the well-documented planning fallacy (Kahneman and Tversky's finding that people underestimate task duration).
Core principles
- 01Checking boxes is an emotional reward, not a measure of productivity.
- 02The to-do list has no feedback mechanism, so you never learn how long things take.
- 03Measuring focused effort per timebox tells you how many timeboxes a task needs.
- 04People who measure effort-without-distraction finish more than people who measure completion.
How to run it
- 1
Commit to a timebox for a task
Decide you will work on a specific task for a set block of time without distraction — not until it's 'done.'
Watch out Resist the urge to keep going past the block just because you're in flow; you want a clean measurement.
- 2
Work the block distraction-free
Do only that task for the whole block. Success is defined as doing what you said for as long as you said without distraction, regardless of whether the task is finished.
Pro tip Judge the block on adherence, not output volume.
- 3
Read the progress as a rate
Note how far you got — e.g. 2 of 30 slides in 30 minutes — and use that to estimate the remaining timeboxes the task needs.
Pro tip This rate is the feedback loop a to-do list can never give you; use it to schedule the rest.
Watch out Without this measurement you'll fall into the planning fallacy and underestimate tasks by ~3x.
In the wild
Eyal describes working on a 30-slide presentation for 30 minutes and finishing 2 slides. Rather than feeling behind, he now knows he needs roughly 10 more of those timeboxes to finish.
→ Turns a vague, anxiety-inducing task into a concrete, schedulable plan.
Eyal admits he used to complete a task, realize it wasn't on his to-do list, then write it down just to check it off — chasing the emotional reward of the checkbox.
→ Illustrates how completion metrics distort behavior instead of improving productivity.
Common mistakes
Measuring 'did I finish'
Completion offers no data on how long work takes and rewards doing easy tasks; it feeds the planning fallacy where tasks take 3x the estimate.
Procrastinate-then-cram
Waiting for the deadline then working all night produces low-quality work and stress; diligent effort with lead time beats cramming.
Is it for you?
Best for
People who feel busy but unproductive and can never estimate how long their work will take.
Not ideal for
Purely deadline-driven, low-stakes tasks where 'good enough by the skin of your teeth' is acceptable.
From the transcript
“did I do what I said I was going to do for as long as I said I would without distraction”
“the problem with to-do lists is that there is no feedback loop”
“tasks take people three times longer to finished than they estimate”
“they actually finish more they get more done than the to-do list people”
From the episode
Strategies for becoming less distracted and improving focus
Nir Eyal (author of Indistractable and Hooked)