Oral history seems particularly robust in its ability to maintain consistency over time. There is an inherent weakness to publishing where authorship is corruptible and short circuits the durability of time spread across regions that maintain a consistent oral history.

It reminds me of the technique to remembering a book where you read one word at a time and repeat it out loud, repeating each segment + 1 in a loop. It’s quite trivial to remember every single word when doing that.