When Ethereum Layer 2 transaction volume surpasses 40% of the total Ethereum network volume, it often signals a maturing ecosystem and increased adoption of scaling solutions. This shift can lead to reduced mainnet congestion and lower transaction fees, fostering further growth in DeFi and NFT markets. Historically, such milestones have been followed by a 20% increase in Layer 2 adoption rates. Monitoring Layer 2 adoption and its impact on the broader Ethereum ecosystem provides valuable insights into future trends.