Memory
Spaced Repetition Explained
Spaced repetition is the most research-backed learning technique available. It can increase your long-term retention fivefold while actually reducing your study hours.
The Core Principle
Instead of reviewing information at regular intervals, you space out your reviews further and further over time. Each successful recall allows you to extend the gap before the next session. This is known as the spacing effect.
The Simplified SM-2 Algorithm
At the heart of most tools (Anki, Estuqia), the SuperMemo algorithm suggests a schedule like: Day 1, Day 3, Day 7, Day 14, Day 30, Day 90. If you fail a review, the interval resets to Day 1.
Why It Works
Every time you retrieve information just as you are about to forget it, you strengthen and solidify the memory trace. It is the effort of active recall that creates lasting mastery.
How to Apply It
Use flashcards (digital or paper), track the date of every review, and trust the algorithm. Consistency is far more important than sheer volume.
Conclusion
Spaced repetition isn't magic. It requires discipline—just a few minutes every day. However, its long-term results are truly incomparable.
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