Sarah dreams of beans@michaelconrad This is cool! I've never seen an analog way to do spaced repetition. (I use the Anki app for language flashcards.)
Michael Conrad@beandreams Yes, the Anki app is based on the analog way of doing things. There are a lot of studies related to graduated interval recall learning. Another analog way is via timed audio challenge response exercises.
Example: https://www.youtube.com/playlist?list=PLf2OpwwUW42i8An8eKBBKHDqipYBcnfio
