Wen Tao is born with questions about the world. He is neither a scientist nor a philosopher, but an ordinary young man wandering in the cracks of the city. His experimental plans are not in laboratories, but in subways, overpasses, night markets and office buildings. Every "experiment" challenges social rules and the boundaries of human nature: asking strangers to write a poem together, randomly changing the work and rest time of a street, or anonymously sending a well-planned surprise to the frustrated. The city is his fluid test tube, and all living beings are unlabeled variables.
However, as the effects of the experiment gradually spiraled out of control, legends about "urban ghosts" began to circulate on social networks. The intervention of the police and the media plunged Wendao into a confrontation between morality and reason. Is he saving the city from apathy, or creating ripples of chaos? Between madness and tenderness, loneliness and connection, Wen Dao uses his own way to question: What is real urban life? This book uses a unique urban experimental perspective to explore the subtle and fragile connections between people, revealing the fierce collision between reason and emotion, rules and freedom.