Even as Ethereum (CRYPTO: ETH), the world’s second-largest digital currency by market capitalization is up 40% in a month and has played a crucial role in the recovery of the cryptocurrency market, the network’s co-founder Vitalik Buterin said the protocol will only be 55% complete after the merge. Often described as the “merge,” the event alludes to the network’s move to the proof-of-stake consensus from its current “proof of work” model.