# Spaced repetition Spaced repetition systems (SRS) were originally/primarily a system for remembering facts, but I'm interested in how to use them in developing ideas. Andy Matuschak has loads of great notes and thoughts on spaced repetition. ## Twin pages - [Spaced repetition memory system](https://notes.andymatuschak.org/z4eXdSMJFv2qVGXSUEKH4vdcHBrLHcFY1ZGfC)