Remembering your own machines really isn't the problem people think it is. If I ask you what 192.168.1.1 is, you're probably going to guess it's a router/gatew

Remembering your own machines really isn't the problem people think it is. If I ask you what 192.168.1.1 is, you're probably going to guess it's a router/gateway. There is absolutely no reason for it to be, it's merely an accepted convention that the lowest-numbered host is the gateway. There's absolutely nothing stopping you doing the same in ipv6. If you need to be able to remember where your gateway is, put it on 2001:db8::1. The problem isn't that they're long, it's that for some reason we assume we have to remember dynamically assigned addresses. Any address you have to memorise shouldn't be dynamically assigned, whether it's v4 or v6.