On July 6th, at the 2019 China Fortune Forum on the theme of “Fortune-Helping Shipping Trade Finance Innovation”, William PURPURA, Chairman of the Board of Directors of the New York Mercantile Exchange, asked “We know that Bitcoin is a digital currency, and you feel that you are buying Bits. Which currency should I buy and buy gold?”, you know that I don’t have any bitcoin. I know bitcoin, but there is nothing behind it to support, and gold is a physical thing, this is the difference between them, mainly depends on your confidence in them. Bitcoin is also very important. CME is also a bitcoin futures contract in the New York Mercantile Exchange. There is indeed a lot of controversy.