I Stand at the End of Civilization

In 2153, an undersea black hole appeared near the waters of Kyushu, Japan. China has successively "sacrificed" the Taishan, Huangshan, and Everest aircraft carriers to prevent Kyushu Island from sinking. It is hoped that this will create a strategic buffer zone, because the two superpowers China and the United States will eventually come together due to the movement of tectonic plates. However, Japan eventually sank. The world entered a panic, and under the guidance of the United Nations, time migration began. The coalition government has successively implemented the "Starshot Project" and the "Lighting Mars Project". They appear to be successful, but they are not. A dark future will begin. How was the human space fleet blocked? Since humans cannot travel faster than the speed of light, how can we win wars between civilizations? How were dimensions discovered, and what physical laws were used to create them? What will be the engine that will drive economic growth in the future? The warp engine needs to consume "negative mass", so how is the "negative mass" created? When "I" stand at the end of civilization and face the entire universe, there is only hope for restarting.