The Stars Whisper: Echoes of Twenty Thousand Years

At two o'clock in the morning, the FAST telescope captured a repeating sequence of prime numbers. The signal came from the orbit of a dead planet three thousand light years away. After deciphering, it points to a cosmic heritage - from a long-lost galactic empire. Hidden within the legacy is a warning: there is a cleansing mechanism in the universe. Any technological civilization that develops to a certain level will be automatically erased. The Fermi Paradox has an answer. The universe is quiet because those who make noise are dead. Humanity stands at a fork in the road: pretend not to hear, or send a spaceship and exchange a 20,000-year one-way ticket for an answer? Astrophysicist Lin Shen boarded the Messenger. He would wake up again and again during his long hibernation, and each time he would find that the signal had changed - someone was responding to him. At the end of the light cone, the end of the chain of suspicion, there is only one question: When the price of trust is the survival of civilization, do you still dare to reach out first?