Understanding Optimistic Rollups: Arbitrum vs. Optimism Explained

There’s no doubt that Ethereum has brought tremendous uplifting to blockchain technology, establishing itself as the foundation for decentralized applications (dApps) and smart contracts.  However, with its growth, serious challenges have emerged—chief among them, scalability. High gas fees, slow transaction speeds, and network congestion are threatening to stall Ethereum’s progress. ... source: https://droomdroom.com/optimistic-rollups-arbitrum-vs-optimism/