Circle officially launched the USDC official cross-chain protocol CCTP! Will this stablecoin cross-chain bridge end the basic business of the cross-chain bridge? What impact will various cross-chain bridges have in the short and long term? 1. What is the official USDC cross-chain protocol CCTP launched by Circle? 2. The launch of this protocol, what impact will it have on various cross-chain bridges in the short term and long term? 3. The models of CCTP and Stargate are different. Stargate is in the form of a fund pool, and CCTP is a coinag