nostr:npub1cuscsrz6efq99ptktk26x58v4yqy9y46ytp8xw4rjjwq0wlt6znst66789
Well, position and order matters in language.

As for special characters, I suppose most systems and keyboards have some mechanism for producing the most common ones. But I am kind of sceptical of solving what is actually markup by adding special characters. The ° is a proper character, but subscript and superscript 2 is usually just markup.