It would still create ambiguities for resolvers that use search zones. Also... there are hexadecimal digits and all kinds of acceptable IP address representatio

It would still create ambiguities for resolvers that use search zones. Also... there are hexadecimal digits and all kinds of acceptable IP address representations. You can ping 0xbabecafe or visit it in your browser (by specifying the full URL). Now if it was mandatory to use, say, brackets (like we do for email) or something...