Secondary Expansion

The two-dimensional space is the unfolded surface of the three-dimensional space, and the three-dimensional space is the pebbles falling into the void from the four-dimensional space. Stones in the void, after a long period of continuous expansion, decomposition, and reorganization, create all things and form a vast three-dimensional universe. Human beings are one of these creatures, creating civilization, conquering the universe, and becoming the master of this world. Humanity begins to search for the unknown world again and embarks on a new journey...