@hongminhee thanks. had always kinda wondered, as most of what i see is really detailed calligraphy, which can't be practical when writing notes in a meeting!
i suspect the problem like right handers trying to decipher left handed writing, especially when writing at speed and you start to smudge all of the ink!
@pavsmith Of course, there's cursive script in East Asia too. Also, each single Chinese character is more like a word than a single letter, so the information density of a sentence is high (hence a sentence is short).
https://en.wikipedia.org/wiki/Cursive_script_(East_Asia)