More and more, I'm starting to rely on Spaced-Repetition systems (SRS) for learning. That's WaniKani for Japanese Kanji and Vocab, Memrise for good courses they have (like the one on Morse Code) and Anki for everything else I want to remember, like Spanish Vocab, books I've read, Latin expressions or the Nato phonetic alphabet. Once I've mastered a course, it will also be migrated to Anki for maintenance.
At the moment, I'm only have thousands of cards, but I'm quite curious how long-term maintenance is going to work once I reach tens of thousands and more. For one, reaching a …