1. After millennia, the metal core of the earth ejects all surface crust material of camouflage. The core ship then rejoins the intergalactic.
2. The sun slowly picks up speed.
This ultimately causes the orbital speed of its planets to exceed the gravitational pull and Sol’s planets get slung out to the cosmos.
Humans give up on caring about anything,; leading to the global ecosystem irreversibly dying.
4. The mainframe computer running the existence protocol crashes
5. The omnipotent gets pissed and destroys it out of spite
6. An enormous gas mining vessel enters our solar system to collect all atmospheres.
7. DARPA accidentally created a black hole in the lab.
8. Humans destroy the earth by trying to terraform or “save” the planet
9. We used every bit of matter on the earth to build a fleet of generation ships
10. The Illuminati trades the Earth’s existence for immortality.