Glossary
Spaced Repetition
Spaced repetition is a learning technique that re-shows you information at increasing intervals — right before you'd forget it — which dramatically improves long-term retention. Flashcard apps like Anki and reading tools like Readwise are built on it.
Why it works
Memory decays predictably (the 'forgetting curve'), and each well-timed review flattens the decay. Reviewing at expanding intervals — a day, a week, a month — encodes material into long-term memory with far fewer repetitions than cramming.
Applied to what you save
Saving an insightful post once does nothing for retention — you'll forget you ever read it. Feeding your best saves into a spaced-repetition system (for example, exporting curated Reddit saves to Readwise) turns a bookmark pile into knowledge you keep.