Fifty million a day, trapped in the county town, can't spend it all.

Zhang Yang ran a supermarket in Shanghai for four years, but was eventually crushed by exorbitant rents and the rise of e-commerce, returning dejectedly to his county town with only 30,000 yuan left. Back home, he unexpectedly became linked to a "County-Level Cash Back" system. The system "returned" 100 yuan daily to each resident of the county, generating 50 million yuan a day. The more people in the county, the higher his income. However, this money could only be spent in the county town… and the system had a particularly frustrating warning: if the task wasn't completed within three years, all the money would be taken back, with interest charged at an annual rate of 30%… Originally, Zhang Yang planned to exploit this bug and enjoy himself for three years, but he discovered he couldn't possibly spend it all. The cost of living in the county town was incredibly low, and entertainment options were practically nonexistent… Zhang Yang stared at the cold numbers in his bank account, lost in thought. So... Zhang Yang decided to build the city himself. He stormed into the investment promotion bureau, saying he was going to give them a windfall... With the support of the authorities, he started by transforming the county's industries and livelihoods, replicating Pang Donglai (a famous fast-food chain), building factories, roads, schools, hospitals, and entertainment venues... Years later, a Forbes columnist interviewed Zhang Yang: "How did you come up with the idea of ​​turning a small, third-tier county into an international metropolis with 20 million people?" Zhang Yang smiled slightly: "At first, I just wanted to find a place to spend money..."