" For example, forgetting something in your short-term memory is a result of insufficient encoding, while forgetting something from your long-term memory is a result of faulty retrieval. This has been dubbed the forgetting curve by scientist Hermann Ebbinghaus. "

― Peter Hollins , Learn Like Einstein: Memorize More, Read Faster, Focus Better, and Master Anything With Ease… Become An Expert in Record Time (Accelerated Learning)