How to Remember Forever

The most popular spaced repetition software is Anki

It's used a lot in Medical school.

Other options are Supermemo and AnkiPro.

Memory

spaced repetition

Spaced repetition is when you study something at increasingly large intervals over time.

Here's an example. You make a new card. On the first day, you'll maybe study that card twice. Then the next time you'll study it is in a week. After that, it's in a month. After that, it's in six months. This way, you spend less time studying each flashcard but can remember it forever.

Spaced repetition is at least 20x more time-efficient than normal studying.

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Optimal spaced repetition shows you a card right before you're about to forget it.

Q: why?