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Well for one thing, Anki is using an ancient SuperMemo algorithm. I wouldn’t take Anki as a benchmark in terms of spaced repetition effectiveness.


anki doesn't use the ancient sm algo anymore

anki uses fsrs but afaik it still "punishes" you for taking breaks


It does still use SM2 by default -- you have to turn on FSRS manually. https://docs.ankiweb.net/deck-options.html#fsrs


You can set easy days via the FSRS4Anki Helper add-on: https://ankiweb.net/shared/info/759844606

And it also supports to postpone your backlog.


As others pointed out, SM-2 is apparently still the default.

FSRS would indeed be more interesting, as it seems to be heavily “inspired” by SM-18.




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