The only problem here is that Proof-of-Work is the evolution of Proof-of-Stake, not the other way around.
PoS is how Paxos and RAFT work, and it was described in Wei Dai's b-money in 1989 [1]. But it didn't work for an adversarial byzantine network, and so it wasn't until Satoshi invented a Proof-of-Work based solution in 2008 that we had a crypto-currency.
PoS is how Paxos and RAFT work, and it was described in Wei Dai's b-money in 1989 [1]. But it didn't work for an adversarial byzantine network, and so it wasn't until Satoshi invented a Proof-of-Work based solution in 2008 that we had a crypto-currency.
1. http://www.weidai.com/bmoney.txt