Great point. I was considering a very visual-minded reader but of course not everyone would be so good at it nor would they always just care about how the kanji

Great point. I was considering a very visual-minded reader but of course not everyone would be so good at it nor would they always just care about how the kanji looks rather than other aspects. It's a difficult problem indeed... My intention is to show that we'd need some sort of radical solution that might not be what we'd immediately jump to (for example the current approach the author mentions is having a separate field for readings, but this is clearly resource-intensive and wouldn't work on arbitrary data). To solve sorting for Japanese, I feel we need to rethink what it means to sort.