> If you widen the character even more (...) If you go to UTF32 you waste a lot more space in any conceivable situation (extra-BMP characters are less tha 0.1%

> If you widen the character even more (...) If you go to UTF32 you waste a lot more space in any conceivable situation (extra-BMP characters are less tha 0.1% of the text even in CJK languages) and you still don't get anything in exchange thanks to combining diacriticals and ligatures. Thanks Unicode Committee!