True story, a retired police officer, third-level police inspector, has always been interested in blockchain, consulted Wubi, and said that his nephew has been working on it for 5 years. I said, this team is still great, but it is best not to touch this, the risk is high, Bitcoin and other things can be bold, everything is centralized, there is a huge risk of the center running away or being arrested, I am such a good person