Via clever techniques, every packet produced on every node is broadcast to every other node. Hyper-broadcasting? Every node gets ever message from every other node... eventually ...and there is some kind of gc, obviously.

Sound impossible? Maybe it is. If you like, then: star network, broadcast to all, with some node-to-node hacks to speed things up.

And of course any mix of the two you like.

The point is that the "routing" is handled cryptographically on each node. They have addresses, tags, groups... they have a key for each of these "privileges". However CA is handled, renewal happens rapidly and automatically, so there's latency when you kick someone out of a group, e.g.

This may be damn close to what Ethereum does. I may have pulled a Carlos Mencia.

...I don't know.

I also thought there was some "neat benefit" but maybe not that either.

But it's "not centralized [enough]".