Recently, Ethereum's ($ETH) Layer 2 scaling solution has gained popularity, especially Optimism and Arbitrum. The transaction speed has increased, and the fees have decreased.

I have a friend who used to play DeFi, and every interaction made him cringe at the gas fees. Now he has switched to Arbitrum, and with the same strategy, his costs have dropped by 80%!

After Ethereum transitioned from PoW to PoS, although the energy consumption issue was resolved, transaction congestion and high gas fees remain pain points. Layer 2 acts like a highway, diverting transactions while the main chain is responsible for final settlement, ensuring both security and efficiency. I feel that the Ethereum ecosystem will become more and more prosperous in the future, and I look forward to more innovative applications emerging.