Collapse of the World 3

The "collapse" of the world, whether you can accept it or not, is a phenomenon that occurs periodically. It happens every few hundred years. The manifestations of Honkai Impact are elusive. War, epidemics, climate disasters, comet impacts, and even the arrival of Titan Soldiers are all possible. According to the explanation in the classics, it can only be said to be the unpredictable will of God. But judging from the results, it will definitely bring about the massive destruction of the species that dominate the world. The most recent collapse was the Black Death in the 14th century, which directly or indirectly caused the destruction of one-third of Europe's population. As for the extinction of dinosaurs as far back as the Cretaceous, was it also a type of collapse?