Arbitrum is a Layer 2 scaling solution for Ethereum that aims to increase the speed and efficiency of transactions on the network.
Arbitrum uses a technology called Optimistic Rollups to enable faster and cheaper transactions while maintaining the security and trustlessness of the Ethereum network. This is achieved by aggregating multiple transactions into a single batch and processing them off-chain before submitting them to the Ethereum mainnet.
One of the main benefits of Arbitrum is that it allows developers to create decentralized applications (dApps) that can handle large amounts of traffic and transactions without congesting the Ethereum network. This can lead to a better user experience and increased adoption of dApps on the Ethereum platform.