Babbitt reported on the 1st, June 1st, the "2019 China Blockchain Technology and Application Summit Forum" hosted by the Chinese Computer Society (CCF) was held in Nanjing. He Baohong, director of the Institute of Cloud Computing and Big Data at the China Institute of Information and Communications, said in his speech that coins without chains must be air coins, no chains of coins or blockchains. Business is secret. Information cannot be public. The real money is the private chain. Just like in the field of cloud computing, many people said that private cloud was a false proposition a few years ago, but no one said it after a few years. He also pointed out that the blockchain is not to trust, but to achieve the transfer of trust. At any time, the transfer of trust requires an intermediary, but now the intermediary is moving from a third party to a machine. Blockchains are not machines that create trust, they are just parts that need to be combined with other technologies.