备份数据保安全。穿越雪中拜师李淳罡的小说

　　The sun has collapsed. The Apocalypse is 8 minutes away. The last few survivors have fled into the world of digital dreams, the Dream Machine. The machine delays the inevitable: it stretches the last 8 minutes to 12000 years. Inside this machine Lena and David try to find meaning in this world without a future.