The issuance of Q coins can be controlled, but Bitcoin can't, unless someone can monopolize quantum computers. In other words, the issuer of Q coins can freely control the number of currency in circulation, Tencent can freely reduce the number of Q coins in circulation, but Bitcoin can't, and no one can control the number of bitcoin put into circulation. The nine promoters of Bitcoin are respectively the founder of Bitcoin, Sequoia Capital, one of the largest single investors in Bitcoin, Winklevoss Brothers, Frankfurt Unity Investment Company, Lewis, venture capital fund Victoria Harbour Investment, BitcoinGrant Organization, Chinese aunt who speculates on gold and Bitcoin trading platform "Money Bank". It is very powerful.