Layer-2 Scaling: Arbitrum, Optimism and Cheaper Ethereum
Rollups bundle thousands of transactions off-chain and settle them on Ethereum. The result: lower fees, same security.
Layer-2 networks process transactions away from Ethereum’s base layer, then post compressed proofs back to it. Optimistic rollups like Arbitrum and Optimism assume transactions are valid unless challenged; zero-knowledge rollups prove validity cryptographically.
For users, the benefit is immediate — fees a fraction of mainnet’s — while inheriting Ethereum’s security. The competition between L2s now centers on decentralizing their sequencers and attracting developers, making the space one of the most closely watched in crypto.
This article is for information only and is not financial advice. Always do your own research before investing in crypto assets.
Written by
Lisa Young
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