Discover the 3 scientific principles that make Readii 2-3x more effective than traditional methods
Linguist Stephen Krashen demonstrated that language acquisition happens through exposure to content slightly above your current level (i+1).
"We acquire language when we understand messages — when we understand what people tell us and when we understand what we read."
— Stephen Krashen, The Input Hypothesis: Issues and Implications (1985)
Hermann Ebbinghaus discovered that we forget 80% of what we learn within 24 hours without revision. Spaced repetition combats this phenomenon.
❌ 80% forgotten
✅ 80% retained
RESULT
+300% retention
compared to methods without spaced repetition
Research by Karpicke & Roediger (2008) confirmed that spaced repetition dramatically improves long-term retention.
Karpicke & Roediger (2008) - Science MagazineOur system makes you review each word at the precise moment your brain is about to forget it:
Paul Nation proved that vocabulary learned in authentic context is retained 3-4x better than isolated word lists.
"Learning from context while reading is the most important of all sources of vocabulary learning."
— Paul Nation, Learning Vocabulary in Another Language (2001)
Isolated words, no context. Weak retention.
Scripted exercises. Limited motivation.
Readii: Real context, maximum retention.
By combining these 3 scientific principles, Readii allows you to learn 2-3x faster than with traditional methods, while making learning natural and enjoyable.