Layer 2 scaling reduces DeFi costs and boosts throughput but causes liquidity fragmentation and security trade-offs. Rollups, EIP-4844, MEV, and interoperability shape adoption, risks, and incentives.

January’s blockchain advances reveal shifts in liquidity, leverage, and adoption, highlighting rising stablecoin liquidity, increased leveraged trading, Layer 2 scalability, governance risks, on-chain derivatives growth, and AI integration.