Idk, Base64 i guess. Actually the UTF-8 encoding is pretty ingenious.

However, that's beside the point. This number system this article is talking about is 30 years old. The article is actually about encoding some glyphs in unicode not the number system. The number system is interesting. Adding a bunch of glyphs to unicode is not particularly.

Binary and 2s compliment negative numbers / normalized floats, took some out of the box thinking.