Spaced Repetition (SRS)
Spaced Repetition Systems (SRS) are the single highest-ROI study habit for Mandarin vocabulary. 15–20 minutes of consistent Anki practice daily outperforms hours of unfocused re-reading or passive review. What SRS Is and Why It Works The Ebbinghaus forgetting curve (1885) describes how memory decays exponentially after initial learning. Without review, you forget ~70% of new material within 24 hours and ~90% within a week. SRS exploits the spacing effect :...