Taking the Zhuhai Air Show in China as an example, the interstellar defense plan left behind by the "Mountain and Sea Alliance", the prehistoric civilization of the earth, is hidden. Humanity's current civilization is actually the "restart of the fire" of ancient higher civilizations, and the myths of Sanxingdui and Shanhaijing are all codes of prehistoric technology. Because China inherited the "Spark" mission, it secretly developed the Kongtianmen Project, aiming directly at the Devourer civilization lurking outside the Milky Way.
