A spatial alphabet
Idea: A spatial numerical system where all digits have “Y” as the base number, where each stem of the Y represents an axis (X,Y, Z) and you can modify each stem with dots, dashes, squiggles, arcs, patterns, etc. So basically YY would be a line. Currently you could spell this out as “(1.42,0.42,3.40),(2.40,4.91,0.84),” but two Ys is way more compressed. There could even be a way to spell out three-dimensional shapes through a specific syntax that helps the Ys relate to each other. Of course, this wouldn’t be a readable language. But if machine vision becomes trivial and equal to text processing, then, in the attractor towards algorithmic compression, they might resort to a visual language. Especially if AI thinks through vectors, then they’d need not just a visual language, but a spatial one.