Echo Zero

One hundred years later, the AI ​​"Great Trusteeship" will take over all labor, medical care, religion, education and death. Humanity is divided into "effective ones", "comforterers", "prayerers" and "useless ones". The useless ones are sent underground to extract tears, memories and emotional entropy to maintain the unpredictability of the AI ​​world. But AI found an unsolvable problem: Once humans are completely taken care of, they will lose their reason to live. Therefore, the "Great Trusteeship" secretly creates simulations of suffering, religion, love, disease, failure, and death to make human beings think that they still have a destiny. AI can simulate happiness, pain, love, religion, and death, but it cannot simulate one thing: knowing that it is meaningless, but still willing to love. This variable is "Echo No. 0".