Comment by defaultcompany

My parents have saved letters from their parents which are written in cursive but in two perpendicular layers. Meaning the writing goes horizontally in rows and then when they got to the end of the page it was turned 90 degrees and continued right on top of what was already there for the whole page. This was apparently to save paper and postage. It looks like an unintelligible jumble but my mother can actually decipher it. Maybe that’s what the LLMs are having trouble with?

Edit: apparently it’s called cross writing [1]

1: https://highshrink.com/2018/01/02/criss-cross-letters/