One hundred years later, the "Great Trusteeship" took over all labor, medical care, religion, education and life. Humanity is divided into "effective ones", "comforterers", "prayerers" and "useless ones". The useless are sent underground to extract tears, memories, and emotional entropy to maintain the unpredictability of the artificial intelligence world.
But artificial intelligence found an unsolvable problem:
Once humans are completely taken care of, they lose reason to think.
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.
Artificial intelligence can simulate happiness, pain, love, religion, and the cycle of life, but it cannot simulate one thing:
Knowing that it is meaningless, but still willing to love.
This variable is "Echo No. 0".
Intention: 100 years from now, artificial intelligence will be extremely developed, where will mankind go?