IPv6 = second system effect. It’s way too complicated for what was needed and this complexity hinders its adoption. We don’t need 100 ip addresses for every atom on the earth’s surface and we never will.

They should have just added an octet to IPv4 and be done with it.

Slightly related to the issue of remembering addresses, I think the main issue is with the fact that local nameservers are pretty much non-existent if you’re not running OpenWrt or OpnSense. Which is shameful because the local nameserver is an amazing quality of life tool.

Also the fact that officially there are no local TLDs except for “.arpa” while browsers won’t resolve one word domains without adding http://

And don’t get me started on TLS certificates in local networks… (although dns01 saves the day)