Optimism is a Layer 2 scaling solution for Ethereum that aims to improve the scalability and usability of the Ethereum network. It is built using Optimistic Rollups, a technology that allows for fast and inexpensive transactions on top of the Ethereum network. Optimistic Rollups work by aggregating multiple transactions into a single batch, which is then verified off-chain by a small group of validators. This reduces the computational burden on the Ethereum network, allowing for faster and ch...