Chen Zhiwu, professor of finance at the University of Hong Kong: I advocate that the mainland shut down the A-share market. The economy is already planned, and there is no need to invest more money in it and create a weird capital market. Now Hong Kong's financial sector is to become the Web3.0 center and compete with Singapore. It should not be about who is more strict, but who has looser supervision. If it is strict, why would people come?