Interstellar Rebirth: I Open up Borders for Mankind

On my seventy-fifth birthday, I went to the cemetery to sign my death certificate. Legally, Chen Jianguo "retired". The real journey began when my consciousness was uploaded to a green war shell codenamed "Djinn God" - the peak function of a twenty-year-old, but carrying seventy-five years of memories and wrinkles. This is not a gift, this is a transaction. The "Council for the Continuation of Human Civilization" gave us a new life, but also handed us a cold bill: ten years of service, with a 75% death rate. We are no longer "people", but the "firewood" of civilization - firewood that can be burned out at any time. Next to me are the equally old and new "old guys": former community mediators, female textile factory workers, physics teachers, cardiac surgeons, theoretical scholars... We were organized into the "Fire Team", resurrected in the simulation cabin, and fought bloody battles in the alien desert until dawn. Young soldiers are superstitious about steel and speed, but we have used our eyes for seventy years to see through the enemy's third step of ambush. The super AI has calculated thirty-six dead ends, and we join forces to find the thirty-seventh one—the only way to survive. They give us the youngest bodies. We respond with the most ancient wisdom, the most stubborn concern, and a strong backbone that we never want to explain here easily—— Then, fight a bloody path for the blue homeland behind you.