1900: Pick up a Death Star

On the night when Jiang Mo was hunted down, he picked up a ring in a dry well. The ring opens a door. On the other side of the door is the Earth in 2180. Cities were blown to rubble by antimatter weapons, the wreckage of the space elevator floated in synchronous orbit, and the entire global population was wiped out decades ago. In the ruins, a sleeping artificial intelligence detected a living person's signal, automatically activated it, and established a link with him. The world in 1900 didn't know what was happening. From dry wells to ancient cities on the back of the moon, from civilization ruins under the ice of Mars to the first generation of deep space fleets setting sail. There are many things to do: remove the obstacles that stand in the way one by one, and finally go to the galaxy to see who is left and talk to them about the future of the universe.