1 Invite: unicast message with group identification
3 Group metadata: download from the swarm
5 Message multicast ideas:
9 Swarm downloads: when to update? Polling.
13 How are transfers propagated?
17 Create a new ID when a new message is created, propagate that, and use
18 swarm to download the content. When messages history diverge, use
19 merging. Try to solve a problem regarding message ordering.