KBC Hollow Crisis

Starting from Einstein's sealing of an equation that "should not be opened" in 1927, three generations of physicists spent a hundred years capturing a directional signal from the center of the Milky Way in the data noise of the Kuiper Belt - 1420 MHz, like a heartbeat, like a knock on the door, like a letter written eighty years ago. This is not what an alien civilization is shouting. It was human beings who finally discovered that they were living in a dug "pit". Dark matter is the pit wall, and the gravitational wall is the boundary between the pit bottom and the pit wall. The solar system is not a naturally formed planetary system, but an ejected drifting bottle. The anchor has been roped off. The window closed in less than two hundred years.