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Why Are Layer-2 Solutions Being Developed to Address High Gas Fees?

Layer-2 solutions process transactions off the main blockchain (Layer 1) but still inherit its security. By bundling many transactions into a single Layer 1 proof, they significantly reduce the overall computational load and data required on the main chain.

This drastically lowers the per-transaction gas cost for users.

Can the Overhead Be Amortized across Multiple Financial Transactions?
How Does an Off-Chain Reporting (OCR) Mechanism Improve the Efficiency of Decentralized Oracles?
How Do Layer 2 Solutions Aim to Reduce Smart Contract Gas Costs?
What Is the Difference between Gas Limit and Gas Price?