" After a long time, life and civilization will begin again, and progress once more through the unpredictable world of Three Body. But in this civilization, Copernicus successfully revealed the basic structure of the universe. The civilization of Three Body will take its first leap. The game has now entered the second level. We invite you to log on to the second level of Three Body. "

― Liu Cixin , The Three-Body Problem (Remembrance of Earth’s Past #1)