Daily Revision

Revision you do not have to schedule

Knowing that a topic should be revisited is easy. Remembering to revisit it three weeks later, on a Tuesday, while four other subjects are also due, is the part that fails — and it fails silently, because nothing tells you that a topic has slipped.

Daily Revision keeps the schedule so that you only have to keep the habit. It works on topics rather than on cards: when you finish a topic in a subject it enters the ladder, and it stays there until it has survived every stage.

The ladder is five intervals

One day, three days, one week, two weeks, one month. Each successful review advances the topic a stage, so the gap widens as the memory settles. That is the whole of spaced repetition, and the reason the list is short rather than clever — a longer ladder is more precise on paper and less likely to be finished in a semester that has an end date.

The stages are labelled by what they are: yesterday, three days ago, a week ago, two weeks ago, a month ago. You are not shown a due date to interpret. You are shown how long it has been, which is the thing you can actually judge.

Weak topics come back sooner

Marking a topic as too hard drops it a stage and raises a difficulty score against it, so the next review arrives sooner and the topic moves up the daily list. A topic you have struggled with twice does not get the same treatment as one that went smoothly the first time.

Difficulty is kept per topic rather than per subject, so one bad unit does not drag the rest of the subject down with it — and the score falls again when a review goes well, so a topic can recover instead of being marked for the rest of the term.

Where this model runs out

The full ladder, from the first review to the final stage, is fifty-five days. A sixteen-week semester is about a hundred and twelve, which means a topic finished after roughly the eighth week will not reach the last interval before the exam does.

The ladder does not pretend otherwise. Most of the value of spaced repetition sits in the early, short intervals — the same-day and same-week recalls — and a compressed final stage is still a review. But it does mean the feature rewards starting early, and is close to useless if you install it in the last fortnight before the papers.

Where it fits

Daily Revision decides what to revisit. The syllabus tracker tells you what is still unread, and the AI study timetable decides what to study tonight in the first place.