That doesn't contradict anything I said. Private networks can be huge, e.g. in big companies, and they can still use .internal. .internal serves quite a different purpose to that proposed for .self, so the top level comment I replied to doesn't make much sense.
Tailnet and Magic DNS make it easy to bring other people or devices to your network, including simple authentication mechanisms to know who is who
That doesn't contradict anything I said. Private networks can be huge, e.g. in big companies, and they can still use .internal. .internal serves quite a different purpose to that proposed for .self, so the top level comment I replied to doesn't make much sense.
A VPN is literally a… (Very) Private Network.
Virtual, not Very