L2 Developments Overview: Optimism, Arbitrum, zkSync [Part 1]

The Layer 2 (L2) landscape is evolving rapidly, with key players like Optimism, Arbitrum, and zkSync pushing the envelope. Optimism introduced the OP Stack, a blueprint for creating scalable and interoperable blockchains, and the Superchain, a network of L2s sharing security and communication. Coinbase and Worldcoin are expected to join this network soon. Arbitrum offers four core products, including Arbitrum Orbit, a framework for creating L3s or app-chains, which are vital to Arbitrum's scaling journey. zkSync is developing Hyperchains, an ecosystem of trustless and customizable linked blockchains, as their vision of an L3.

These developments offer solutions to the challenges of Ethereum's scalability, dependency on specific ecosystems, and fragmentation of liquidity. They represent the future of Ethereum scaling, which is expected to involve the development of L3s, Superchains, and Hyperchains.