Mind & EverydayFact

After a day, most of it is gone, but not all.

In 1885 Ebbinghaus memorised nonsense syllables and tested how much he still knew. After 20 minutes about 40 percent was lost, after a day roughly two thirds, and then the curve flattened sharply. A 2015 replication found almost the same shape. Every review makes the curve flatter.

Useful: Review new material briefly the same day; that's where you save the most.

Source: en.wikipedia.org

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