I think this is more along the lines of redefining the bounds of text. Because even in his demo, you can see where he's not encapsulating all of the text space

I think this is more along the lines of redefining the bounds of text. Because even in his demo, you can see where he's not encapsulating all of the text space. The comma is cut. As would be any letter with a descender. Also any letter with an ascender or capital letter with a diacritic mark. Also, he has some space before the first "B", but not after the last "x". Why doe the first letter get leading space but the last not get an equal amount of trailing space? Or is the kerning of the letters just concerned with leading space?