Low-Dimensional Invasion

Eos has survived in the universe for 4.6 billion years, while according to scientists' "estimates," humanity only began to emerge five million years ago. Five million is a huge number, but next to 4.6 billion, it's not even a fraction. So what was Eos doing all that time? Just sitting idle? Or did intelligent civilizations keep emerging on Eos, only to be wiped out? If intelligent civilizations once existed on Eos, how did they meet their end? One day, a prophecy from some unknown source began spreading widely around the world: "When material civilization stagnates, a great catastrophe will befall us!" Could it really be true? Or was someone simply bored and spreading panic for fun? What does Eos truly think of the life it has given birth to? Are humans nature's greatest treasure, or a virus destined to destroy the world? What future awaits Eos?