On October 18th, the famous bitcoin investor Willy Woo today forwarded a tweet introducing the history of the French currency: the history of the French currency dates back to the 7th century, and the average life of the French currency is 27 years. In history, no government with a legal currency is printed. The banknotes are insufficient and closed. Willy Woo said: "Bitcoin has reached 40% of the legal life expectancy (27 years old). But the most successful legal currency has depreciated 99.5% of its value."