Optimism is a highly efficient Layer 2 scaling solution for Ethereum, designed to reduce transaction costs and improve network speed without compromising security. By leveraging optimistic rollups, it bundles multiple transactions into a single batch, significantly lowering gas fees. Optimism is fully compatible with Ethereum, making it developer-friendly and ideal for scaling decentralized applications. Its commitment to simplicity and transparency has made it a popular choice for users and developers aiming to enhance the Ethereum ecosystem.