The story spans three time and spaces of the Western Han Dynasty, modern times and the future interstellar. With "fluorescent genes" and "space-time beacons" as the core clues, it tells the story of the cross-dimensional game between the "seeder" Wang Mang and the "observer" Deng Yu around how civilization can survive.
The work uses hard science fiction settings (quantum state bioluminescence, entropy fog pruning, four-dimensional calculation model) as the skeleton, and incorporates historical elements such as the calculation philosophy of "Zhou Bi Suan Jing" and the technological revolution of the Western Han Dynasty to explore the ultimate proposition of "should civilization evolve to choose breakthrough or conservation?" In the finale, the wheat field at 36.5 Degrees north latitude of the earth becomes the origin of the cosmic symbiosis network. The thorns of each rice ear flash with the genetic code of interdimensional civilization, echoing the core metaphor of the opening chapter "The survival of civilization requires someone to dare to sow seeds on the edge of the cliff", and finally sublimates into the grand narrative of "in the long river of time and space, sowing and protection are the heartbeat of civilization".
