That makes about no sense (except as really deadpan satire), the strength of the human visual system is in "chunking" shapes, and making letters into clouds of disconnected dots is about the last thing you want to do to it, if you don't have to. If you do have to, there are already well-established systems that do this (Morse code and Braille).
Teletypes switched to printing actual letters as soon as they could, even though there were people very highly trained in reading the dots and dashes.
Teletypes switched to printing actual letters as soon as they could, even though there were people very highly trained in reading the dots and dashes.