My boy is 11 now. We've used Anki with him every day since he was about 5. Examples of things he's memorized, for fun: * every country, recognized by unlabeled shape on the map * spelling * many body parts, names of bones and organs, from illustration * chemical elements, by symbol (Na, Fe, Zn, etc) * unix filesystem commands * numeracy references (km from here to Japan, earth to sun, meters from home to school) * re…
I swear I have read this exact same comment before Edit: oh good I’m not crazy - https://news.ycombinator.com/item?id=38428309
:)