alt Hacker Newshave that be the invisible bottom layer. come up with a list of 256 common words, one per byte, and have that be the human visible IP address. mentally reading a string of words, however nonsensical, is way easier than a soup of undifferentiated hex digits.
Easier if you’re a native English speaker. Harder if you’re not.
My only gripe with IPv6 addresses is they look too similar to MAC addresses. But as a representation, I think they’re absolutely fine.