The old world, that is, the era of modern scientific and technological civilization of mankind, relied on mature scientific and technological systems such as industry, information, and nuclear energy to build the most prosperous material civilization in tens of thousands of years. At this time, humans controlled surface resources, explored the universe, and claimed to be the masters of the earth. However, they never expected that the catastrophe of destruction would come from the sea of stars. A torrent of disordered meteorites suddenly erupted covering the entire solar system. Without warning and irregular clusters of extraterrestrial meteorites penetrated the protective belt of the solar system. Countless meteorites of different sizes continued to hit the major planets in the solar system. As a habitable planet for life, the Earth has become the core impact target of meteorite flows.
The impact of meteorites directly tore apart the protective layer of the Earth's outer atmosphere. Massive high-temperature meteorites crashed onto the surface, destroying cities, burning forests, and exploding mountains and rivers. Coastal areas were swallowed up by tsunamis, and inland plains were torn apart by craters. Immediately following the meteorite impact came a global extreme climate riot: super typhoons, heavy rains, heat waves, extreme cold, local gravity disturbances and other natural disasters took place in turn, without any seasonal pattern.
Under the double catastrophe, human civilization in the old world completely collapsed. More than 95% of the human population died suddenly in the early stages of the disaster, such as shocks, famines, natural disasters, and secondary disasters. Only a handful of humans were left hiding in underground fortresses, deep mountain secrets, and remote shelters to survive.
What's even more fatal is that the catastrophe completely severed the technological system of the old world, industrial production capacity was completely reduced to zero, and the network and information data were annihilated and lost. The surviving humans have lost their scientific and technological inheritance, and high-end knowledge, cultural classics, and scientific research systems have gradually been lost. Human civilization has fallen directly from the technological era to its original state of survival, entering a long period of dark reconstruction.