Reborn in 2009, earn 500 million first

Introduction: Xu Xin in 2023 accidentally traveled into Wu Feng's body in 2009. Apart from the extra 14 years of memories, he has nothing else. There is no other way. He can only make the first pot of gold and think hard before he can come up with a feasible solution. Plan, sell Teng Xun’s prestige and creative ideas to Teng Xun. Isn’t that a waste of money? In this way, I got the first pot of gold ([-] million) from Teng Xun...starting a business? Impossible, absolutely impossible, it will shorten your life span. Let your friends start a business! I want to collect wool...Bitcoin? World Cup? Spicy? Apple stock? ... As long as I can think of opportunities to buy foreign wool in my memory, I don't want to run away from any of them. I just pick up some domestic ones to calculate my living expenses...