$ADA A Comprehensive Analysis of Bitcoin Layer 2 Solutions

The Bitcoin ecosystem is entering an explosive period, with major Layer 2 solutions including: 1) Lightning Network (channel capacity surpassing 5000 BTC); 2) Stacks (sBTC achieving 1:1 peg); 3) RGB++ (based on client-side validation). Application scenarios cover: cross-border payments (adopted by El Salvador), DeFi (BitVM solution), and NFTs (Ordinals upgrade). Experts point out that Bitcoin L2 faces challenges of fragmented liquidity but is expected to form a tens of billions level ecosystem by 2025.