Incremental Learning is a web app that teaches a subject you name. Claude writes the syllabus and the lessons; each lesson runs as a few short steps you can do between other things. What you learn comes back days and weeks later, so it is still there months on. Use it yourself, or set it for a group and see how everyone is getting on.
The box says Teach me and takes anything — “Kubernetes”, “AP Biology unit 4”, “enough Spanish for a trip in June”. Underneath it you can say where to start, what to leave out and why you are learning it, or attach the material it should teach from: a handbook, lecture notes, a past paper.
A numbered list of lessons. A course with an end to it gets the whole list at once, and you have finished the course when you have mastered every lesson on it. An open-ended one gets the first batch, and the batch after that is written from what you have already learned.
In this order, a few minutes each — and which of them a course uses is yours to change. The four marked with a dot are the ones that ask you to produce something from memory, and passing four of those is what masters the lesson.
And brings the lesson back a day later, then after three days, a week, three weeks, two months. That is the whole loop: ten minutes at a time, for as long as you keep turning up.
A named subject with an end to it — a class, an exam, enough Spanish for a trip in June — or something open-ended like Math that you just keep getting better at. Attach a handbook or lecture notes and it teaches from those.
A team has a join code and the courses you set for it. Everyone who joins is taught the same material and keeps their own progress through it — and a course you have already built can be moved in as it stands, lessons and all.
Anything can write you a lesson. What decides whether you still know it in June is the order the lessons come in and when they come back — so that is what the app is built around. It works the same way whether you are learning alone or teaching thirty people.
A lesson opens with a quiz you are meant to fail. Trying to recall something before you have read it is what makes the reading stick, so getting it wrong costs nothing and is the point.
Finish a step and you move to a different course. Every course gets a turn before any comes round twice. It is harder that way, and far better remembered than working one subject to exhaustion.
Reading and watching move you through a lesson, but they are not how you learn it. Only the steps that make you produce something from memory do that — and the quiz at the end, the one that counts, sends the lesson back a step if you fail it.
Each return is spaced further out than the last, which is the pattern that beats forgetting: you are asked again just as it starts to go. Miss one and the lesson demands more passes than it did before, so the ones that keep slipping are the ones you see most.
Free to begin, with no card — for yourself, or for a handful of people. Either way you can see what comes back before anyone pays for anything.
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