How long to memorize?
An honest estimate, based on SM-2 and memorization research. Adjust the sliders to see the impact of consistency.
- Acquisition phase
- ~7 days
- Stable memorization (80% retention at 6 months)
- ~52 days
- Total time invested
- ~9 hours
Estimate based on SM-2 and memorization research. Your real results depend on consistency, method, and content. Better: try 20 days and measure yourself.
Method
How these numbers are calculated
The SM-2 spaced repetition algorithm (SuperMemo 2, Wozniak 1980s) surfaces each verse at the optimal moment: just before forgetting. Typical intervals are 1 day, 6 days, ~15 days, ~38 days, ~100 days, then 250+ days. Read the SM-2 deep-dive.
Acquisition phase: time needed to "encounter" each verse at least once. Depends mainly on your daily add rate (2 to 5 new verses per 10-minute block, depending on your level).
Stable memorization: acquisition + ~45 days of review so the last added verses reach the long interval (≥ 90 days). At this stage, you have ~80% retention at 6 months — which is remarkable.
These numbers are indicative. The real measure is your own stats in the app after 20 days.
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