You read a lot.Most of it fades.
Dropsomething in.
Kairn breaks what you paste into concepts, turns them into questions, and asks you again just before you'd forget them.
Or start from an example:
Three moves,and that's it.
You drop it in
Nothing to format, nothing to split up, no cards to make: you paste, and you're done. Even a photo of a page from a book.
Kairn breaks it down
What you drop in becomes single concepts, each with three or four ways of being asked: a term to find in a sentence, a choice to make, an explanation to give. The wording changes so you remember the idea, not the sentence.
It comes back
Each concept comes back right when you're about to forget it. The better you know it, the further apart it comes. One more stone on the cairn once it's yours.
What itisn't.
It isn't a flashcard app where you write the cards yourself: what wears you down isn't reviewing, it's making the cards. It isn't a note-taking tool — you already have one, and that's not where knowledge sticks. It isn't an assistant to talk to.
It does one thing: what you've read comes back at the right moment, until it's yours.
Kairn — a cairn marks a trail, one stone at a time.