[andai]

Yeah. Ebbinghaus found this in his work on memory in the 19th century. Even after something has been forgotten, re-learning it goes more quickly, as a function of how many times it has been learned already.

I'm developing a new memory system that functions as an L1 cache for the human mind, taking the opposite approach of Anki and showing you things you want "top of mind" as often as possible. (As opposed to as rarely as possible, which is the standard approach in the memory space these days!)