... any longer without also establishing some session, so that we can reliably transport such keys, etc?
TLS eating its way through the stack, with QUIC replacing other transports because of TLS.
It's a kind of weird moment. The point is that a lot of otherwise unconnected working groups are now working on how this all fits together.
In the meantime, people in the hallway track seem to increasingly realize that the Internet is de facto getting more centralized. Finally there are useful...