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RE: Who will Win Proof Of Stake "Stakes"?
For mining a blockchain, POS is a deal killer. Peercoin is proof of that. You have to have PoW to secure the chain. Now, hybrid systems that allow PoS nodes to earn rewards as well are interesting and may be better than standalone PoW.
Why did peercoin fail? I haven't studied that one. Is it possible to have a coin with no mining? I guess I mean mostly proofvof stake coins.
Peer coin has been making a nice run recently.