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A comment on FSRS: A modern, efficient spaced repetition algorithm. Parent comment
I recommend this interview with Duolingo's founder Luis von Ahn: https://www.npr.org/2020/05/22/860884062/recaptcha-and-duoli...
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I recommend this interview with Duolingo's founder Luis von Ahn: https://www.npr.org/2020/05/22/860884062/recaptcha-and-duoli...