Others fear an alien invasion, but I have uncovered the universe's most ironic fate.
The universe was once utterly silent and empty, with no civilization for billions of light-years. Humanity was the only spark of intelligence in this sea of stars.
The solar system is governed by the law of observational collapse: the moment a civilization explores the truth, gazes into deep space, or touches the essence of the universe, spacetime collapses instantly, and civilization's cycle is reset to zero.
For tens of millions of years, humanity has perished and been reborn again and again. Whenever the apocalypse arrives, a tiny fraction of people fight their way out of the solar system. Carrying humanity's last spark, they drift eternally through the barren universe.
Over billions of years, the refugees evolve, advance, ascend to higher dimensions, and mutate. Humanity, once driven to flee for survival, gradually evolves into interstellar civilizations, higher-dimensional life forms, and even races of gods. At last, the empty universe is filled by humanity's own descendants.
But immortality and endless wandering erode their original purpose, and the drive to survive gives rise to greed. They forget their origins and their bloodline. They become hunters in a dark forest, waging wars and plundering across the universe.
These advanced civilizations, evolved from humanity, return to their home planet in a vast army. It's absurd. Humanity on Earth would have perished on its own due to observational collapse. This so-called interstellar invasion merely speeds up the end.
The ancestors who fought to escape their fate eventually became demons who destroy their own kind. The so-called alien enemies are all humanity itself, escaped from millions of cycles of rebirth.
When Chen Yuan tears through the layers of mist and understands the universe's ultimate closed loop, he finally realizes that humanity has always been destroyed by its own greed and desires.