Currently, the routing code is doing a lot of ugly special casing as a PARSEC can only be created from 2 members on.
It would help a node could simply create a PARSEC with itself and then vote for adding the second node, which would be an identical flow as for any further node addition.
Additionally, it will make the "proper common coin" work easier if instead of requiring a Distributed Key Generation algorithm at Network startup, we can just start from one bootstrap node and have him add peers without a special case.
The expected behaviour would be as follows:
Voting for an observation is enough to have it immediately reach consensus
Gossiping doesn't actually create new gossip messages as a node can't gossip to itself
We should add some tests to ensure a network starting with one node can grow to a normal functioning network of many nodes.