I proposed this idea years back as dynamic or extended flashcards. Because spaced repetition works for learning abstractions, which studies presumably entail learning from a set of testing flashcards to a set of validation flashcards, there doesn’t seem to be any reason to expect SRS to fail when the testing flashcard set is itself very large or randomly-generated. Khan Academy may be an example of this: they are supposed to use spaced repetition in scheduling reviews, apparently based on Leitner, and they also apparently use randomly generated or at least templated questions in some lessons (just mathematics?).
(Incidentally, while we’re discussing spaced repetition variations, I’m also pleased with my idea of “anti-spaced repetition” as useful for reviewing notes or scheduling media consumption.)
I proposed this idea years back as dynamic or extended flashcards. Because spaced repetition works for learning abstractions, which studies presumably entail learning from a set of testing flashcards to a set of validation flashcards, there doesn’t seem to be any reason to expect SRS to fail when the testing flashcard set is itself very large or randomly-generated. Khan Academy may be an example of this: they are supposed to use spaced repetition in scheduling reviews, apparently based on Leitner, and they also apparently use randomly generated or at least templated questions in some lessons (just mathematics?).
(Incidentally, while we’re discussing spaced repetition variations, I’m also pleased with my idea of “anti-spaced repetition” as useful for reviewing notes or scheduling media consumption.)