City: Invent the Traffic Light at the Beginning

Su Ling traveled to a parallel world. This world went from a feudal society to a modern metropolis in just thirty years. This has led to various problems. The modern system is extremely imperfect and even blank in many aspects. "Traffic light? What is that?" "We want to solve business problems. What the hell is CBD?" "Farmer's market? Vegetables are not allowed to be grown in the city." "Stocks? Is this similar to food stamps?" "..." When Su Ling put forward these concepts, people were confused at first. Until the problems of people's life, work and even life are effectively solved. He suddenly realized that he had been regarded as a god-like legend! This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.