I remember that when I was in college, there was a brother who was a loser. He was really a loser, and everyone in school looked down upon him. He started chatting with me about Bitcoin like crazy. At that time, Bitcoin cost $3,000 and I was his only friend in school.At that time, he was talking to me about the rise and fall of Bitcoin every day with his mobile phone, and his face was full of excitement. Then today, the number of Bitcoins was 46,000, and we had lost contact long ago. I accidentally got his contact information and added him to WeChat that day, but he did not agree. , I guess he has become a worldly expert