Actually - realised that Github search is better than I realised and found: https://github.com/olekscode/Flashcards <https://github.com/olekscode/Flashcards>
> On 29 Sep 2020, at 22:28, Tim Mackinnon <tim@testit.works> wrote: > > Hi everyone - strange request, but has anyone implemented a “space based > repetition” algorithm in Pharo/Smalltalk? Before going and implementing it > for a little flashcard program for my daughter, I thought it might be worth > checking as while it will be fun to implement I fear I may end up getting > distracted on the wrong thing… > > I’m after something addressing this: > https://en.wikipedia.org/wiki/Spaced_repetition > <https://en.wikipedia.org/wiki/Spaced_repetition> (possibly SuperMemo SM-2) > > Tim