The Anchor Network: The pinnacle technological creation of the golden age of mankind. By stabilizing the curvature of space and time in specific areas, it has built a safe and fast interstellar navigation channel network. Unknown reasons caused network cores to overload and cascade down. It's not a simple blackout, but the tearing and distortion of the fabric of space-time itself.
The game between order and chaos (rebuilding stability or adapting to flow?)
Alienation and persistence of human beings in extreme environments (What are the boundaries of "humanity"?)
The price of knowledge and power (Is the understanding of anchor technology salvation or a deeper trap?)
The conflict of different truths and survival philosophies (there is no absolutely right path)
Explore and understand the unknown rather than simply conquer it