I mostly use SR so I can study intensely whatever strikes me as interesting, then turn to the next thing, while still retaining the knowledge and being able to make progress.

Like a few months back I had the sudden inexplicable autistic urge to learn geology. So, I picked up a textbook and went through it like a novel and just wrote the flashcards as I read.

I think of it as checkpointing for learning: https://borretti.me/article/spaced-repetition-checkpointing-...

Currently going through Jaynes' Probability Theory: The Logic of Science.