My personal experience when it comes with improving memory is chess. When I started playing as a kid I could not remember even the first ten moves of games I pl

My personal experience when it comes with improving memory is chess. When I started playing as a kid I could not remember even the first ten moves of games I played. When I got better I was able to replay an entire game if it wasn't too long, and when I studied a lot while playing semi competitively years later I learned to play blindfolded, which I always thought was basically magic and talent growing up. One interesting thing about the nature of this kind of memory is that chess players, if they're really good can do this with many boards and recall years of games. But only if the positions make sense. When you give chess players a board with randomized, nonsensical placement, most cannot remember it and are no better than your average person. I took away from it that extreme memory is often related to the skill overall. You can only memorize something if its embedded in a context, deep in your muscle memory and 'makes sense'. I suppose this is why mnemonics exist.