Science-backed techniques that make learning stick
Imagine trying to hold water in your hands—most of it slips through your fingers. That's what happens when you cram information: you might remember it for a test, but within days, it's gone. Spaced repetition is different. It's like building a dam that holds the water permanently.
This learning technique is based on a simple but profound insight: we remember things better when we review them at increasing intervals. Instead of studying something ten times in one day, you review it once today, once in three days, once in a week, once in a month, and so on.
In 1885, German psychologist Hermann Ebbinghaus discovered that we forget information exponentially over time. Without reinforcement, we lose about 50% of new information within an hour, and up to 90% within a month.
But here's the breakthrough: each time you successfully recall information, the forgetting curve becomes less steep. Review at the right moments, and the information moves from short-term to long-term memory, eventually becoming permanent knowledge.
You encounter new information for the first time. Your brain creates initial neural pathways, but they're weak and easily forgotten.
Just before you're about to forget, you review the material. This strengthens the neural pathways and extends the time before you forget again.
Each successful recall makes the memory stronger and the interval longer. Eventually, the information becomes part of your long-term memory.
After enough successful reviews, the information becomes so deeply ingrained that you may never forget it, or only need occasional refreshers.
Spaced repetition works best when combined with active recall—the practice of retrieving information from memory rather than passively reviewing it.
When you use flashcards, you're forced to recall the answer before flipping the card. This act of retrieval strengthens memory far more effectively than simply reading the same information multiple times.
Research shows that active recall can improve retention by up to 200% compared to passive review methods.
Study less, remember more. Focus only on what you're about to forget, not what you already know.
Adapts to your individual learning pace. Difficult items appear more frequently, easy ones less often.
Works with your brain's natural learning processes, not against them.
Information moves to long-term memory, where it can last for years or even a lifetime.
Grafoxi uses the cutting-edge FSRS algorithm to implement spaced repetition with unprecedented accuracy. Unlike older systems that use fixed intervals, FSRS:
You don't need to think about when to review—Grafoxi handles everything automatically, letting you focus on learning.
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