Per CoinTelegraph, during a panel headlined “The Smart Contract War Is Coming”, Ryan Selkis of data analytics startup Messari drew attention to the shortcomings of PoS. He claimed that the consensus mechanism, which gets rid of energy-chomping miners for entitled full nodes that can process Ethereum blocks, is “not proven to work.” Selkis, who is the CEO of the aforementioned firm, adds that Ethereum’s current Proof of Work (PoW) system may be “even good enough” for long-term scaling.
And thus, he added he doesn’t expect for “Proof-of-Stake and ethereum 2.0 to happen before the end of 2021 at the earliest.”
This news comes after Justin Drake of the Ethereum Foundation remarked last week that code specifications for phase zero are “on track” to see finalization by June 30th. Once finalization occurs, developers can begin building code around said specifications, as they ensure that everyone is on the same page. For those unaware, phase zero, also dubbed “Beacon Chain,” will allow for validators, rather than miners, stake Ether and vote on improvement proposals.