The Da Vinci Test: What Is Actually Interrupting You?

Leonardo missed so many deadlines that the Pope gave up on him.

He began the Mona Lisa in 1503 and had still not handed it over when he died in 1519. The Adoration of the Magi, abandoned. St Jerome, abandoned. The great bronze horse, never cast. Pope Leo X’s verdict is on the record: this man will never accomplish anything, for he begins by thinking about the end before the beginning.

He was not lazy and he was not careless. Something specific was happening to his attention. It has since been measured, and it comes in five versions — four of which have nothing to do with willpower and one of which nobody on the internet will ask you about.

Eight questions. About three minutes.

No score. Nothing here ranks you or gives you a number.
No email to see your result. It is on the next screen.
No diagnosis. This names a pattern, not a condition.

Question 1 of 8

It is 11:40. The meeting ended at eleven. You are looking at the document you meant to start.

Residue

You left the meeting at eleven. Your attention stayed until noon.

What this actually is

Sophie Leroy named it in 2009: attention residue. When you move from one task to the next, a portion of your attention stays behind on the first one — and it stays longest when the first one was left unresolved. Your concentration on the new task is not weak. It is partially occupied. This is why the second thing feels harder than it should, and why you are not imagining the lag.

Leonardo had this in its most spectacular form. He did not abandon the Adoration because he stopped caring. He was still in it.

One thing this week

Before you switch away from anything, write one line: the very next concrete action on the thing you are leaving. Leroy’s follow-up work found that a short “ready-to-resume” note clears most of the residue. It takes under a minute and it is the difference between carrying the task and parking it.

Read these three

See the other four
The Open LoopYou cleared three hours and reorganised a drawer.
The Interruption TaxNothing slipped, and you are wrecked anyway.
Decided OutYou did not run out of energy, you ran out of deciding.
The One Nobody Asks AboutThe explanation every search result skips.

If several of these were true at once, that is worth a longer look. Start here.

The Open Loop

You cleared three hours. You reorganised a drawer.

What this actually is

Unfinished tasks do not wait quietly. They intrude — the mind keeps returning to what has been started and not closed, whether or not you have asked it to. This is why removing the distractions did not work: the interruption was never in the room. It was on your own list.

This is Leonardo’s exact pattern, and the reason the Pope’s remark stung. He began by thinking about the end before the beginning, and the beginnings piled up behind him.

One thing this week

Write down every started-and-not-finished thing. All of them, one line each, including the small ones. Then give each a next action and a date — not to do them, but to stop them asking. A loop that has been given a date stops behaving like an open loop.

Read these three

See the other four
ResidueYou left the meeting at eleven, your attention stayed until noon.
The Interruption TaxNothing slipped, and you are wrecked anyway.
Decided OutYou did not run out of energy, you ran out of deciding.
The One Nobody Asks AboutThe explanation every search result skips.

If several of these were true at once, that is worth a longer look. Start here.

The Interruption Tax

Nothing slipped today. You are wrecked anyway, and that is the finding.

What this actually is

In a 2008 study, Gloria Mark and colleagues interrupted people at work and then measured what it cost. The surprise was the output: interrupted people finished faster, at the same quality. What went up was stress, frustration, time pressure and effort. They compensated — by working harder, and by paying for it internally.

This is why you cannot point at anything. Nothing failed. The tax was collected somewhere that does not show up in the work.

One thing this week

Pick the single interruption that recurs most, and give it a shape rather than a ban — a window, a channel, a “not before eleven.” You are not trying to become unreachable. You are trying to stop paying the tax nine times before lunch.

Read these three

See the other four
ResidueYou left the meeting at eleven, your attention stayed until noon.
The Open LoopYou cleared three hours and reorganised a drawer.
Decided OutYou did not run out of energy, you ran out of deciding.
The One Nobody Asks AboutThe explanation every search result skips.

If several of these were true at once, that is worth a longer look. Start here.

Decided Out

You did not run out of energy. You ran out of deciding.

What this actually is

Deciding is expensive, and it depletes separately from tiredness — which is why you cannot nap and cannot choose. In the parole study that made this famous, favourable rulings ran at roughly 65 per cent at the start of a session and fell towards zero by the end of it, recovering after a break. Same judges, same cases, different position in the queue.

Concentration is not one decision. It is the same decision, made again every few minutes. By six o’clock you are not out of energy. You are out of the thing that chooses.

One thing this week

Delete one recurring decision entirely. The same lunch every weekday. Clothes chosen the night before. One standing answer to the question you get asked most. You are not simplifying your life — you are refunding a specific budget so there is some left at six.

Read these three

See the other four
ResidueYou left the meeting at eleven, your attention stayed until noon.
The Open LoopYou cleared three hours and reorganised a drawer.
The Interruption TaxNothing slipped, and you are wrecked anyway.
The One Nobody Asks AboutThe explanation every search result skips.

If several of these were true at once, that is worth a longer look. Start here.

The One Nobody Asks About

Every result above the fold offers you an ADHD screener. Not one of them asks about your cycle.

What this actually is

Verbal memory and word-finding change measurably across the menopause transition, and for most women the change is temporary rather than progressive. A woman of 52 who cannot hold a paragraph is far more likely to be looking at a hormonal pattern than at decline — and it is the one explanation the search results skip, because the commercial intent behind “why can’t I focus” is assessment funnelling.

This names a pattern. It is not a diagnosis, and this page cannot give you one. What it can do is tell you the question is legitimate and worth asking properly.

One thing this week

Keep a two-week log: date, what happened, time of day, and where you were in your cycle if you still have one. Take it to your GP. It converts “I think I am losing it” — which is difficult to act on — into a pattern, which is not. If the changes are sudden, worsening steadily, or affecting familiar routes and familiar names, bring that forward and say so plainly.

Read these three

See the other four
ResidueYou left the meeting at eleven, your attention stayed until noon.
The Open LoopYou cleared three hours and reorganised a drawer.
The Interruption TaxNothing slipped, and you are wrecked anyway.
Decided OutYou did not run out of energy, you ran out of deciding.

If several of these were true at once, that is worth a longer look. Start here.

What is actually interrupting you

Why can’t I focus even when there are no distractions?

Because the most common interruptions are internal. Attention residue keeps part of your attention on the task you just left, and unfinished tasks intrude on their own without any external prompt. A quiet room removes the noise, not the open loops, which is why clearing three hours often produces a reorganised drawer rather than the work.

Is brain fog in your fifties a sign of dementia?

Usually not. Verbal memory and word-finding change measurably during the menopause transition and the change is generally temporary. That said, this is a question for a doctor rather than a website — particularly if the changes are sudden, steadily worsening, or affecting familiar routes and familiar names. A two-week symptom log makes that appointment far more useful.

What is attention residue?

A term introduced by Sophie Leroy in 2009 for the portion of your attention that stays on a previous task after you have moved to the next one. It is strongest when the previous task was left unresolved, and a brief note about how you will resume it substantially reduces it.

Does concentration come back?

In most of these patterns, yes — because four of the five are conditions rather than capacities. Residue, open loops, the interruption tax and decision fatigue all describe an attention that is occupied, not an attention that has diminished. Change what is occupying it and the capacity is still there. The hormonal pattern is the one worth a conversation with a GP, and it too is usually temporary.