I don’t think it’s the tool itself, rather the technique. I used SRS to learn kanji and it was nothing short of miraculous. I also used it to study extremely ef

I don’t think it’s the tool itself, rather the technique. I used SRS to learn kanji and it was nothing short of miraculous. I also used it to study extremely efficiently for well-defined examinations (e.g. proficiency exams for some basic college courses). However, I’ve also tried SRS on other subjects with less success. One challenge is that in many knowledge domains, it’s not entirely clear what is worth remembering. Sure, you can purge cards that turn out to be unimportant, but the process of creating the cards in the first place can be awfully time-consuming so it starts to feel less efficient.