On November 22, it was reported that according to Galaxy Research data, since 2018, Bitcoin Layer 2 (L2) projects have raised a total of $447 million in funding, accounting for over 36% of that total in 2024 alone. The report points out that currently about 0.8% of BTC circulation is locked in L2, wrapped assets, and staking protocols, and it is expected that this ratio will increase to 2.3% by 2030, corresponding to about $47 billion in BTC liquidity. The number of Bitcoin L2 projects has increased from 10 to 75 since 2021. Existing L2 solutions mainly include sidechains and Rollups technology, where Rollups significantly enhance transaction speed and reduce costs through data compression and batching. The report emphasizes that Bitcoin L2 provides more efficient trading and yield applications for BTC, but the current bridging mechanisms and trust issues with asset withdrawal still need optimization.