Unicode doesn't just contain things that are in use now and will be in use forever. It contains characters that were in use in one computer system once, charact

Unicode doesn't just contain things that are in use now and will be in use forever. It contains characters that were in use in one computer system once, characters for dead languages, abstract symbols that the next generation will barely understand, and more. The Bitcoin symbol is used in textual documents today. It deserves to be in Unicode, or Unicode fails its goal of being able to encode any textual document.