Anything can be resized without touching the document, if you don't care whether it looks like shit. The TeX philosphy rejects that. When TeX can't format a pa

Anything can be resized without touching the document, if you don't care whether it looks like shit. The TeX philosphy rejects that. When TeX can't format a paragraph beautifully, it emits diagnostics like "overfull \hbox". That's totally incompatible with being able to dictate a width, and expecting things to fit without having to get involved.