[TazeTSchnitzel]

It also sounds like the right tool for making something like SVG. The vast majority of SVG data isn't text.

[clarkevans]

In SGML land, you wouldn't have implemented SVG using tags, you would have created a NOTATION with syntax specific to the problem at hand. In XML land, everything is XML; for example, schemas are XML (in SGML they are DTDs, that are _not_ SGML), transforms are in XML (in SGML, they are DSSSL, a lisp variant). The XML approach is one-size-fits-all, not the use-the-best-tool/syntax for the job.