There's a youtube channel called Psych of Play (by Daryl Talks Games) which has a video[0] about an ad for a Tetris game released in 2017, and the video goes on

There's a youtube channel called Psych of Play (by Daryl Talks Games) which has a video[0] about an ad for a Tetris game released in 2017, and the video goes on to explain some hypotheses about the ability to have stored knowledge being separate from the ability to recall it. Some links are made with sleep, too. There's also an example of a person with both retrograde and anterograde amnesia who has no idea who you are after a few seconds, and no idea how he knows the piano, but can play it anytime he wants. There's a lot about how memories are formed and recalled that is still the subject of much research. [0] https://www.youtube.com/watch?v=qq5UWSwV2Os https://www.youtube.com/watch?v=qq5UWSwV2Os