Somehow ideas like this emerge in waves seemingly with no coordination, kind of like what happened when Calculus was first invented
(Of course there's a lot of prior art here but it's interesting to see a specific jump towards polyglot single-file Markdown 'apps' and so on happen around the same time)
I want to see somebody try “imbalanced quaternary” -,0,+,2
they mentioned decomposition of Q2 into ternary+binary i.e. [[1,2],[-1,0]] -> [[1,1],[0,0]] + [[0,1],[-1,0]]