I think that's the point; In the real world, any significant chunk of non-roman text is embedded in far more roman text, or in terms of internals of programs, i

I think that's the point; In the real world, any significant chunk of non-roman text is embedded in far more roman text, or in terms of internals of programs, is generally dwarfed by the size of other data structures. More or less, I'd say that storage size of text usually doesn't matter.