I am confused why this is needed.
> IP addresses can break, without warning, and it's outside of your device's control.
We have DNS?
> Keys, however, are created & controlled by you. They stay the same as your device moves, and are yours to throw away, or not.
So are domain names? This page does not do a good job of helping me find what it is that I'm missing.
Your phone and laptop don't have stable IPs, let alone DNS entries pointing to them.
They do if you use tailscale and friends
Everyone I'd like to connect to isn't on my tailscale, nor do I want them to be.
What you're missing is that they can't charge you for IP's, and someone else already charges you for DNS/domains. They would like to replace your IP's with keys they lookup. It's a cool idea and I would expect that they'll find a market, but I'm not sure this would be a breakthrough product for me