The layer 2 landscape on top of Ethereum has seen some intense competition over the past few months. According to L2Beat, Arbitrum, another optimistic scaling solution and Optimism’s biggest rival, leads the way with $5.69 billion total value locked (TVL), a measure of collateral socked into decentralized-finance (DeFi) protocols on the network, while Optimism has $1.68 billion TVL.
