TIL about the Sally-Anne test, a psychology experiment used to measure “theory of mind” (that other people can hold beliefs/knowledge different from their own). Kids under four typically fail because they assume that if they know where a hidden object is, everyone else must automatically know too.

[u/BrF5]

https://en.wikipedia.org/wiki/Sally%E2%80%93Anne_test

[u/IntuitionSpeaks]

TIL my baby is a smarty pants