I was actually thinking of something like markdown or HTML forming the base of that standard. But it's almost impossible (is it?) to do page layout with either of them.

But yeah! What I was thinking when I mentioned a LaTeX-based standard is to have a base set of "modules" (for a lack of a better term) that everyone should have and that would guarantee interoperability. That it's possible to create a document with the exact layout one wants with just the base standard functionality. That things won't be broken when opening up a document in a different editor.

There could be additional modules to facilitate things, but nothing like the 90's proprietary IE tags. The way I'm imagining this is that the additional modules would work on the base modules, making things slightly easier but that they ultimately depend on the base functionality.

IDK, it's really an idea that probably won't work upon further investigation, but I just really like the idea of an open standard for documents based on LaTeX (kinda like how HTML has been for web pages), where you could work on it as a text file (with all the tags) if needed.