But does POI scale to 1000 nodes?
We will see.
why wouldnt it?
Well, as we found out with Proof of Time with XCR, you either have a
centralized system that keeps track of the uptime or IMPORTANCE of each node, or you have a decentralized system where each node communicates to every other node each block to determine the pecking order.
Works great on Testnet with 20 nodes, does not work in mainnet with 100 nodes.
NEM is saying they are decentralized. How you going to figure the POI every block or every X blocks without each node having to ping every other node?