In practice PoS chains have hundreds of nodes or more. In Bitcoin, nodes can't stop a 51% attack and I don't know if the software would even alert you when a 51% attack is likely going on.
> In practice PoS chains have hundreds of nodes or more.
Is that supposed to be a lot? I look at the node requirements for these new chains and they mention monstrous amounts of cpu and storage power.
> In Bitcoin, nodes can't stop a 51% attack and I don't know if the software would even alert you when a 51% attack is likely going on.
My question was about regulated exchanges dominating huge percentage of PoS validators. What are you going to do when, due to regulatory pressure, Coinbase and Binance start to implement blackists and OFAC based validators into those PoS chains?