(50 years after our current era...humanity entered a serious crisis after the depletion of the Earth's natural resources, the destruction of nature, and the constant wars that led to coups in many countries of the world, which made humanity in a state of collapse and thus...those above took what they had and went to colonize space, leaving 3.5 billion people in a primitive and absurd state...)

20 years later...you are walking peacefully outside your cave carrying your spear, looking at the white sky tending towards yellow and the orange clouds...