Almost as if one typeface covering every writing system on the planet isn't something you can do in just a few MB. Even a single comprehensive font for Chinese

Almost as if one typeface covering every writing system on the planet isn't something you can do in just a few MB. Even a single comprehensive font for Chinese or Japanese ends up being _at least_ 12 MB if it wants to do things right. Multiply that by some 120 writing systems, and you can see why things might get a little big if you want "one font for every language". (which you can't, the spec doesn't allow for more than 65k glyphs, including virtual compound glyphs, per font. So I'm genuinely confused about the author's claim that they managed to put 137k glyphs in a 65k glyph space. You need multiple fonts tied together using a font family name)