@tanshufang5
Layer 2 solutions are revolutionizing blockchain scalability by processing transactions off-chain while maintaining security. The Lightning Network, built for Bitcoin, enables instant micropayments through payment channels, drastically reducing fees and congestion. Meanwhile, Rollups (Optimistic and ZK-Rollups) bundle transactions on Ethereum's Layer 2, compressing data before settling on the main chain—boosting throughput by 100x.