To say that "Etherium has not proven proof of stake can work at scale" is true but means not a whole lot. Since it implies other's haven't. Cardano, as an examp

To say that "Etherium has not proven proof of stake can work at scale" is true but means not a whole lot. Since it implies other's haven't. Cardano, as an example, will be 100% decentralized Proof of Stake within the next few hours. I see no reason at this point for bitcoins existence but the technology that's being built on top of blockchains is fascinating and shouldn't be condemned for something that bitcoin can't do.