The lonely years kept flowing on.
In the end, Dao Heiqi could not withstand the Blade of Time either. Before humanity achieved microscopic high-dimensional jumping, he passed away as well.
After him, basically everyone from an era relatively close to the Callisto Era was gone, and Yue Yuan truly became one of the only two old people left from that time. The other was Lu Xiaofen.
Unlike Yue Yuan, Lu Xiaofen had stopped working on the front lines soon after Yi Kai's death. She had returned to a certain Residential Spaceship and begun living an ordinary life. Of course, the Interstellar Government had continued paying attention to her, and she had also continued cooperating with the Academy of Life Sciences' work, occasionally going there to assist with research and the like.
Now and then, she would even run into Yue Yuan there, who was also carrying out research on his own blood and genetic samples, as well as the Negative Entropy Factor. The two of them would occasionally reminisce, talking about interesting things that had happened on Callisto back then. In a way, it counted as a kind of mutual spiritual comfort.
One generation of New Humans replaced the Old Humans.
And so Human Civilization continued moving forward through generation after generation, growing farther and farther from the Milky Way Galaxy as time passed: two hundred million light-years, three hundred million light-years, four hundred million light-years.
At a spatial node 350 million light-years in a straight line from the Milky Way Galaxy, after the efforts of several generations, Human Civilization finally fully mastered Microscopic High-Dimensional Jump Technology. After that, they spent another three hundred thousand years before, through countless experiments, they painstakingly installed the Microscopic High-Dimensional Jump Device on the Lyra.
And before installing the new "Teleportation" device on the