#+title: Spaced Repetition
#+date: 2024-01-14
#+filetags: :concept:learning:memory:

Spaced repetition is a learning technique that involves reviewing material at increasing intervals.

* The Forgetting Curve

Without review, we forget:
- 50% within an hour
- 70% within 24 hours  
- 90% within a week

* How Spacing Helps

Review schedule example:

| Review | Interval |
|--------|----------|
| 1st | 1 day |
| 2nd | 3 days |
| 3rd | 1 week |
| 4th | 2 weeks |
| 5th | 1 month |

* Software

- Anki
- Org-drill (Emacs)
- RemNote

* Connection to Note-Taking

[[file:zettelkasten.org][Zettelkasten]] provides natural spaced repetition through:
- Random encounters while linking
- Review during searches
- Connections triggering recall

* Research

Based on memory research cite:ebbinghaus1885 and modern applications cite:pimsleur1967.