With an average profit of $85 million per person, the world's most profitable business isn't AI. [Plain Language Summary] In 2024, Tether, with a net profit of $13 billion and a team of only 150 people, achieved a staggering average profit of nearly $86 million per person, far exceeding Goldman Sachs by almost 300 times and Nvidia by 85 times. This USDT issuer profits passively through a "stablecoin float game": users deposit USD to exchange for USDT, and Tether invests in US Treasury bonds to earn a 5%+ interest spread, generating over $4 billion annually, in addition to huge profits from gold and Bitcoin. It has become a "shadow bank" in emerging markets, disrupting SWIFT's high-cost, low-efficiency payment system. Now, Tether is heavily investing in mining farms, AI computing power, and humanoid robots, aiming directly at the future dominance of digital economy currency. With regulatory implementation, it has quietly embedded itself in Wall Street. The power to define currency is shifting; are you ready for the new system? For details, please see: hellobtc.com/kp/du/02/6236.htm...…