In today's increasingly crowded Ethereum Layer 2 space, we suddenly notice an interesting phenomenon: various Rollups are like private cars during rush hour, each racing ahead without yielding to one another. Arbitrum's daily trading volume exceeds 2 million transactions, Optimism's total lock-up position stands at 3 billion USD, and zkSync's account number surpasses 5 million— the data looks great, but the asset transfers among them still need to walk a tightrope while facing "bridge risks." This sense of disconnection is like forcibly merging the subway systems of New York, Tokyo, and Shanghai, yet requiring passengers to row their own boats for transfers.