Consensus protocols 101? It seems to boil down to, 'who will subordinate' - it doesn't matter who, so long as someone does. There is a risk of interminably fail

Consensus protocols 101? It seems to boil down to, 'who will subordinate' - it doesn't matter who, so long as someone does. There is a risk of interminably failing to come to consensus on a means for finding consensus, though, an infinite regression that would necessarily need to be broken by one or the other...