On September 25th, Facebook blockchain director David Marcus issued a message "Why is building a new currency agreement the only way to really change the way people play?" According to the article, the Libra project will enable wallets, merchants and services from around the world to transfer value at incredibly low cost. This will be a near real-time settlement, even without the need to consider the liquidity pools that banks around the world have prepared for various currencies. Libra can be a “protocol” that enables funds to flow quickly, cheaply, and steadily between service providers, institutions, and people around the world, and can significantly reduce costs by eliminating a lot of intermediaries and complexity operations and overhead. . Libra will make it easier for billions of people to access modern digital currency and financial services.