learning is helped by friction

came across this in odessey videos about writing notes, but he was honing in the third benefit of why writing notes after reading or consuming is important - because they help you remember more.

if our learning is easy, like passive, it is easy but you don’t actually remember or digest anything.

perhaps this can be adjacent idea of how clusters cause tension, and tension is required for resolution as well as the concept of [[ keep your head on it|keeping your head on it ]]