Earlier quoted context omitted.
There are plenty of these markup languages. The reason none of them really challenge tex/latex in its own space, is that they don't aim to do what tex/latex does. Latex is "typographically-complete". Markdown and friends are explicitly not. HTML+CSS is. But what latex has is a reasonable enough syntax that a human can write it by hand, unlike HTML+CSS. Moreover, the syntax, though clunky [1] is designed, as much as p…
> what latex has is a reasonable enough syntax that a human can write it by hand, unlike HTML+CSS. Moreover, the syntax, though clunky [1] is designed, as much as possible, to not interfere with the content that the human is writing I could not disagree more. LaTeX syntax is not 'clunky', it's a mess, and has intentionally been engineered right from the start to be clever rather than consistent. And it's not the synt…
TeX engine obviously will need to be rewritten completely from scratch for the reasons you suggest.