Ironically, the biggest argument in favor of IPv6 adoption is the massive debacle IPv6 has been. It's virtually guaranteed that we won't ever get a successor to

Ironically, the biggest argument in favor of IPv6 adoption is the massive debacle IPv6 has been. It's virtually guaranteed that we won't ever get a successor to IPv6, and since IPv4 exhaustion has pushed enough adoption of IPv6 that we can't get rid of IPv6 either.. we're stuck with it. Yes, I do wish we'd realized this 15 years ago, when it might have still been possible to throw IPv6 away and start over. But we didn't, so here we are.