This is all well and good and all.

I always see these ingenious developments with IPv6. But we kind of forget that deployment is a nightmare.

I think we need forget that we're putting the cart before the horse.

I don't see a future for IPv6 while there's no officially endorsed transition plan that has an actual incentive.

IPv6 only makes sense for mobile since carriers use it to shed load off CGNAT. In turn this incentivises large traffic sites that cater to mobile (e.g. Youtube, Google, etc.) to also help out by operating over IPv6. The only reason carriers can do this is because they usually have full control to configure the IP stack connecting to the network.

Penetrating the residential is a pipe dream.

Let's not forget in the early to mid 90s IPv6 was decided on to mitigate the address exhaustion issue. Its use has basically made a scratch.

So many other technologies have come and gone and a few paradigm shifts (e.g. cloud everything).

And IPv6 continue to sits idle.