I've read about dotsies which is a way to map a to z to letters of 5 horizontal bits. It felted a bit nice even if way too cybre and not human enough (a bit like our current keybaords are for entities with 10 tentacles and not 2 hands/arms that aren’t parallel on such a space).
But well, I though about lojban, a logical neutral language. This language only uses 28 non-blankspace characters(abcdefgijklmnoprstuvxyz,.') which makes it fully fit in 5 bits(25=32 possibilities).
My proposition is:
Having this would make a machine-human-? language work on a machine-human-? writing system. OCR on current human writings is horrible, this would allow more accurate OCR I guess as it’s barcode alike, and well we could add checksumming as we still haven’t used the whole address-space. 4 characters are left if I didn’t screw up the Math, we could totally have checksum-start/checksum-end and maybe text-start/text-end.