Spaced repetition
Spaced repetitionThe forgetting curve: what Ebbinghaus actually found, and what to do about it
The curve everyone quotes came from one man memorising nonsense syllables in the 1880s. What he measured, what the 2015 replication confirmed, the numbers that get attached to it and should not, and the one thing the shape tells you to do.
11 Sept 20269 min read
Spaced repetitionSpaced repetition: how it works, how to do it by hand, and where it breaks
The idea is a century old and the evidence is unusually solid. What the spacing effect is, how a review schedule turns it into a habit, how to run one with index cards, and the two ways it fails in practice.
11 Sept 202611 min read