So, how does this deal with a network split? I have yet to see any consensus proposal which is truly forkless without the ledger producing nodes being set in concrete, like they are in ripple.
I put it to you that forks are inevitable unless the nodes producing the ledger are a fixed set.
Which is why I said he will probably have to cap nodes at a specific number like Bitshares and Darkcoin did.
Not true, while Byzantine solutions typically employ some form of elected "leader", or have a predetermined static set of trusted nodes, it is possible to achieve agreement with an ever changing set of
n nodes.
There doesn't need to be any enforced cap, as any number of "voters" can be used in the set, and the set modified at any time. Your workable limit is simply the point where the communication channels between this set becomes saturated and overloaded.