Hard to take seriously any suggestion which look at ARP (and the other warts in v4) and goes "yep, let's hang onto those". "Let's make a new, backwards incompa

Hard to take seriously any suggestion which look at ARP (and the other warts in v4) and goes "yep, let's hang onto those". "Let's make a new, backwards incompatible protocol and not learn anything from the old one" doesn't feel like a good idea to me.