It's a learning technique where the software tries to show you a flashcard for review right before you would have forgotten it otherwise. So each time you see i

It's a learning technique where the software tries to show you a flashcard for review right before you would have forgotten it otherwise. So each time you see it, it will be longer until the next time you see it. That way, you're not wasting time looking at a bunch of stuff you already know well. http://en.wikipedia.org/wiki/Spaced_repetition http://en.wikipedia.org/wiki/Spaced_repetition also: http://www.wired.com/medtech/health/magazine/16-05/ff_wozniak?currentPage=all http://www.wired.com/medtech/health/magazine/16-05/ff_woznia...