Founder of "Tree Map" Long Fan: He once spent $1000 to buy 100 bitcoins, but sold them too early

Long Fan, founder of "Tree Map" and director of Shanghai Tree Map Blockchain Research Institute, recently revealed in an interview with Xinmin Weekly that he spent $1000 to purchase 100 bitcoins while pursuing his PhD at MIT, and then sold them for $50 each. Now, the price of bitcoins has exceeded $100000, but he still does not have 100 bitcoins.