Prisoners of Physics - the Death of Light Speed

Traveling at the speed of light is not a romantic boat ride on the sea of ​​stars, but a drifting bottle in the universe. She piloted Xingyuan 1 alone and rushed to Sirius 8.6 Light-years away at 0.86 Times the speed of light. Flying at nearly the speed of light, only ten years have passed on her ship, but a full twenty years have passed on Earth. She thought she would be able to catch up with the most passionate climax of human construction when she returned. What greeted her was a strange world full of antimatter spacecraft - she couldn't read the documents or understand the terminology, and even her own Xingyuan 1 became a "highly radioactive dangerous item" in the museum. Her father failed to wait for her return. There is only one last word: "You have fulfilled your responsibility. From now on, live for yourself." The market lady said that her son's eyes were full of light back then, but now he just says he's okay. The old engineer said, "You didn't catch up when it was busy." The little girl on the street corner pointed at the starry sky and said, "I want to go to Jupiter when I grow up." - At that moment, Shen Xingci saw himself twenty years ago in those eyes. She used her life's pain to draw a red line for mankind: starship civilization is a living coffin, and time dilation will lock the voyagers in the technological past. From then on, only unmanned scouts were sent for deep space exploration, and the tribe was not allowed to sail far away.