I guess I was right to wait out IPv6...

But more seriously, it gives me a pause when we try to bake more complex, application-centric logic into foundational protocols. The list of assigned IPv4 and TCP option numbers is a graveyard of tech experiments, but at least we had the sense to separate them from the main protocol. Baking JSON web tokens and OAuth into IP seems kinda crazy from that point of view. Is this what we want to commit to for the next 40 years?

I kinda wish that IPv6 just used this ("IPv8") addressing scheme and left everything else the same, though. I think the expectation that IPv6 should entail an architectural rethink for existing networks really slowed us down. Fun fact: at this point, IPv6 is 30 years old, we're still under 50%, and growth is visibly tapering off.