Some weird, German communist, hello. He/him pronouns and all that. Obsessed with philosophy and history, secondarily obsessed with video games as a cultural medium. Also somewhat able to program.
https://abnormalhumanbeing.itch.io/
https://www.youtube.com/@AbNormalHumanBeingsStuff
Treat my answer as what it is - hearsay - but the way I remember reading about it being explained, there is indeed sign-language poetry, and gestures having similar or complimentary movements were considered rhyming, which I guess also makes intuitive sense.