alt Hacker News>having different code points so that things like text search sometimes don't work.
Cross language search seems like a hack to me. Searching in Chinese should find Chinese words and searching in Japanese should find Japanese words. Being able to search in Japanese and get Chinese results is not what most users want, unless they don't have a proper keyboard.
Do you feel similarly about french and english? It could work but would be a little weird and annoyong to switch language modes
I think you underestimate the similarities. For instance Japanese names are not translated to Chinese. Theyre just read with Chinese pronunciations. So Chinese will regularly interact with Japanese content (im guess it happens the other way around too, but i dont have the personal experience)