I guess that is an artifact of 5 bit encoding (invented in 19 century), as all zeros define NULL, see [0]. - [0] https://en.wikipedia.org/wiki/Baudot_code http

I guess that is an artifact of 5 bit encoding (invented in 19 century), as all zeros define NULL, see [0]. - [0] https://en.wikipedia.org/wiki/Baudot_code https://en.wikipedia.org/wiki/Baudot_code