It's amazing after all these years we're still so bad at improving an average person's recall, even by 50%. It feels like there's a lot of low-hanging fruit there, and all we can do is spaced repetition systems, the memory palace, strong associative scents, etc

Weak.

If we had a better understanding of memory perhaps we could give the average person techniques for 10x'ing their recall without jumping through Anki hoops.