Yeah, so Teeline shorthand is the perfect "secret scrip" of humanity fighting the ai. Ai alrwady struggles with handwriting that's hand drawn in an image (as opposed to where it can watch the strokes and speed like with apple pencil etc). And cursive is, depending on thr typr, wuite a bit harder. But most young people don't really know cursive, and it takes a long time to get good. Also, most people have bad handwriting no matter how hard they try.
Teeline is different, beacuse it maintains the challenges of handwriting for ai, but is much faster to learn to write legibly (and speed is much greater, what it was made for).
Teeline is parsimonious, and polymorphic. It has huge potential for hiding in things. It also teqches strategies of encoding, which will open doors for the evolution of Teeline, if Teeline becomes a meme.
Teeline is uncancelable, because it's in books, it needs no special hardware or software.
The tendency will be for Teeline to expand the synonyms, even into video. This is because Teeline words are mostly 1 or 2 "outlines". Outlines are just paths, and you can animate a camera, or a gimbal, on a path. And then there are secondary possibilities. Once it becomes established that a hopping skateboarder jump cut video segment is "M", whereas a straight skate video is "D", the gesturing of the arms, or not, could stand for the letters respectively. So throwing up your hands, then hokding them out flat, then throwing them up would be MDM or "maddam". Additionally, we might see a camera pan over a room, across a left hightop shoe, across a bed's baseboard, thrn across the other shoe. (Jump, baseline, jump or MDM). I think there are many more possibilities. Also, the outline of various objects can be in videos in creative ways.