Yeah. It’d never be as easy to convert a decentralised system like the internet to a new protocol. That said, simply increasing the IP address field size in t

Yeah. It’d never be as easy to convert a decentralised system like the internet to a new protocol. That said, simply increasing the IP address field size in the header would have been a lot simpler and been easy to upgrade. A big part of the IPv6 story is how they made so many changes there is a relatively steep learning curve to adopt. And NAT etc gave us another way not to.