Optimism: Making Ethereum Faster & Cheaper | by Maximilian Perkmann | May, 2022

Optimism is designed to scale Ethereum. The scaling solution processes transactions outside the Ethereum mainchain and then bundles them back onto it.
As a result, the project can significantly reduce ETH transaction costs. For example, a token swap via Uniswap on Optimism currently costs just $0.529. On the main Ethereum network, users have to pay $25.39 for the same transaction.

Optimism — Photo by Alina Grubnyak on Unsplash, edited by the author