Wall of Silence: Echoes

Astrophysicist Lin Yuan deciphered a "whining" signal from tens of millions of years ago in the cosmic microwave background radiation - the last words left by a strangled alien civilization. He was horrified to discover that the universe was not a dark forest, but islands isolated by "silence." Any civilization that dares to send a message will trigger the "tombstone satellites" scattered throughout the galaxy, freezing its physical laws in place, and forever losing the ability to touch the universe. When Lin Yuan tried to disclose the truth, the global coalition government "Silent Treaty Organization" tried its best to suppress it. What's even more frightening is that the earth's technological progress has approached the critical point of silence. In order to prevent the apocalypse, Lin Yuan made a desperate move, but accidentally triggered a local silence, paralyzing communications throughout the solar system. He was exiled to a deep space monitoring station and looked at the approaching Tombstone satellite. He finally understood that the greatest enemy of mankind is not aliens, but silence itself.