Fun fact, we have working systems for peer-to-peer publish/subscribe systems that only need a known peer to bootstrap off of, and then are reasonably resilient

Fun fact, we have working systems for peer-to-peer publish/subscribe systems that only need a known peer to bootstrap off of, and then are reasonably resilient to nodes disappearing etc. No need to have central update servers - just push a signed message into some random selection of machines and go!