I have some questions about the protocoI:
a) is it possible for one node to gain more rewards by attacking another node? AFAIK so far only Cardano has protocol level protection against this.
b) what are the sybil protection mechanisms? A single large owner distributes his stake in a lot of nodes to affect the chain for his benefit. There are potential attacks that would benefit this bad actor but wouldn’t cause the value of Harmony to drop (if executed properly)
c) Is there a point at which too many nodes (more decentralized) would negatively affect efficiency, even with the low network latency and full sharding Harmony uses?