SM-2 is very easy to implement and is still an effective memorization tool. A lo... | Hacker News

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henning on May 18, 2025 | parent | context | favorite | on: Spaced repetition systems have gotten better

SM-2 is very easy to implement and is still an effective memorization tool.

A lot of the difference in that graph seems to come from 70% vs. 90% retention.

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