The Ethereum Merge Is Done, Opening a New Era for the Second-Biggest Blockchain The massive overhaul of Ethereum known as the Merge has finally happened, moving the digital machinery at the core of the second-largest cryptocurrency by market value to a vastly more energy-efficient system after years of development and delay. It was no small feat swapping out one way of running a blockchain, known as proof-of-work, for another, called proof-of-stake. “The metaphor that I use is this idea of switc