Dark Matter Era

"What is civilization?" "Civilization is continuation and culture." Fang Chu sat in the starry sky, leaning against Gu Guanxue. The dark matter particle cluster is invisible, but it is the guillotine of weak civilization. Gu Guanxue looked back at the blue earth, six hundred years, so many people's efforts and hardships. Still so in the end. The two of them leaned against each other and said, "This is how the story ends..." They felt extremely aggrieved and unwilling, but what could they do?