You can agree with this rant and still want to deploy IPv6. All the arguments are valid but even in the worst case it's better than the status quo. There simpl

You can agree with this rant and still want to deploy IPv6. All the arguments are valid but even in the worst case it's better than the status quo. There simply was no technical possibility for backwards compatibility, due to the way IPv4 was designed. So a dual-stack deployment has been pretty much the way to go from the start. It's unfortunate that it takes 20 years, but no better deployment scheme has been proposed during this time, only lots of new tunnel and NAT schemes. The smart phone revolution was really slow, too.