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The Streak Went Back to Zero for a Reason

Duolingo spent June handing people their dead streaks back, and meant it kindly. But the zero was the only part of the arrangement that was teaching you anything.

Close-up of two hands pulling tight the laces of a worn grey training shoe resting on a gym machine footplate
Photo: Ketut Subiyanto / Pexels

For the whole of June, Duolingo ran an amnesty. Anyone who had at some point lost a streak of thirty days or more could have their longest one back — free, no payment, no in-app currency — by completing three lessons in a row. Only the single highest lost streak qualified, and it would not be added to whatever you had running now. It was a resurrection, not a merger.

The company's reasoning was straightforward and, taken at face value, kind. Streaks get broken by things outside your control. Being reset to zero, it said, can feel like a hurdle too big to clear. People had been asking for years.

They had. That is the interesting part. Grown adults wanted a number restored on a language app they had mostly stopped opening — which tells you the number had come loose from the practice some time ago and been quietly promoted to a possession.

If three lessons in a sitting can hand back a year of daily practice, the year of daily practice was not what the number was measuring.

What the counter costs

The best account of this is not from an app at all. In 2024, Curran and colleagues published a set of interviews in Health Psychology and Behavioral Medicine with twenty-one recreational runners who were streaking — running every single day — with streaks running from a hundred days to over four and a half thousand.

The benefits were real and the researchers said so. The streak produced genuine automaticity, the thing habit research is actually looking for. People were fitter. They described a solid, unshowy sense of accomplishment, and they meant it.

They also described injuries extended or aggravated because stopping was not available. A hip. A broken toe. A hamstring that never quite got the fortnight it wanted. They described anxiety on holiday, and social evenings declined, and at least one partner who thought the whole business selfish.

The most telling detail is what the study could not record. It set out to look at streaking and found it had almost nothing to say about broken streaks, because the participants had not broken theirs. What it captured instead was anticipation — one runner saying he feared that breaking it "might be the start of the beginning of the end". He had not broken it. He was arranging a life around an event that had not happened, and might never, and whose actual consequences he had therefore never once tested.

That is what a counter does past a certain size. It stops recording the practice and begins competing with it.

What the zero was for

None of this is an argument against a floor, and the distinction matters more than it sounds. A reduced session — twenty minutes when you meant sixty, one lesson when you meant six — keeps the practice going and keeps the number honest, because you did in fact turn up. A repair is the opposite arrangement. It keeps the number while the practice went to zero. One of these is a plan for bad weeks. The other is a plan for the record of bad weeks.

And streaks do work. It would be cheap to pretend otherwise from a desk. Consecutive days build automaticity in a way that the same number of scattered days does not, and the runners in that study were not fools — most were steadier, fitter and more consistent for the thing, and would tell you so. The counter is genuinely load-bearing for a great many people, and the version of this argument that sneers at them is not worth reading.

But there is exactly one competence in this whole area that survives a new job, an illness, a move, a bad winter and a death in the family, and it is not the ability to keep a chain intact. Nobody keeps a chain intact through that. It is the ability to begin again on the following Monday without a fortnight of ceremony first — and like everything else, it is acquired only by doing it. Every ordinary break is a rehearsal for the one that will actually matter. Buy your way out of enough of the rehearsals and you arrive at the real thing, the one no June amnesty will reverse, having never practised the only move that would have helped.

So keep the floor and decline the repair. If you count anything, count restarts rather than days — the number of times you came back is a far better predictor of where you will be in five years than the number of days you strung together before you stopped. And if you have a streak large enough to frighten you, consider breaking a small one on purpose, in a week when it costs nothing, purely to discover what happens the next morning.

Almost nothing happens. You get up and do the thing. That was always the whole of it, and the counter was only ever taking notes.

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