The Science of Spaced Repetition

Understand how Flashician's learning algorithm maximizes memory retention and learning efficiency

What is Spaced Repetition?

Spaced repetition is a learning technique that involves reviewing information at increasing intervals. Instead of cramming, you review material just as you're about to forget it, strengthening long-term memory.

The Forgetting Curve

Hermann Ebbinghaus discovered that we forget information exponentially over time. Without review, we lose:

  • 50% within 1 hour
  • 70% within 24 hours
  • 90% within 1 week

The Solution

Strategic repetition at optimal intervals can dramatically improve retention:

  • Review before forgetting occurs
  • Gradually increase intervals
  • Build permanent memory

Flashician's Advanced Stack System

Our sophisticated 20+ level stack system automatically determines optimal review timing based on your performance:

Learning Phase
Stacks 0-5
5 min → 25 min → 2 hr → 10 hr → 1 day → 2 days

Rapid reinforcement for new vocabulary

Consolidation
Stacks 6-15
4 days → 1 week → 2 weeks → 1 month → 2 months

Building stronger memory connections

Long-term Retention
Stacks 16+
4 months → 5 months → 6 months...

Permanent memory formation

Smart Adaptation

Get an answer wrong? The word drops back 2 levels for faster re-review. Get it right? It advances to the next level with a longer interval. The system adapts to your individual learning pattern.

Ready to Experience Spaced Repetition?

Start your learning journey and watch your vocabulary grow efficiently and permanently.