Yeah. It's a mess. If you want to write a document in Japanese that talks about a Chinese character which is written differently than its Japanese version, you

Yeah. It's a mess. If you want to write a document in Japanese that talks about a Chinese character which is written differently than its Japanese version, you can, or can't, achieve this in Unicode, depending on the character, its history, and the mood of the consortium the day it was assigned. The reality is that Unicode is governed by people, some of those people are grumpy reductionists who push for a minimum of symbols and a maximum of meaning-overloads, and others are more liberal and tend to advocate the opposite, and the result is a compromise, and is in areas very messy.