Episode 12 explores a future where humanity discovers the scientific secret to immortality, eliminating aging, disease, and natural death. What begins as the greatest medical breakthrough in history quickly reshapes every aspect of civilization. At first, immortality is rare and controlled, available only to elites — scientists, political leaders, and the ultra-wealthy. Society fractures into two classes: the Permanents, who live forever, and the Temporals, who still age and die. Time becomes the most valuable currency on Earth, sparking social unrest, political manipulation, and wars fought not over land, but over years of life. As centuries pass, power stagnates. Immortal leaders never step aside, freezing innovation and trapping younger generations beneath eternal rulers. Love and family bonds erode as relationships struggle under the weight of endless time. Parents outlive children, marriages collapse, and immortals learn emotional detachment to survive perpetual loss. With no natural death, the planet faces severe overpopulation. Governments regulate childbirth, turning reproduction into a privilege. In response, a counter-movement emerges — The Mortals — people who reject immortality, believing death gives life urgency, meaning, and beauty. For them, choosing to die becomes an act of freedom and identity. Though immortals eventually conquer space and build civilizations among the stars, they lose something essential: wonder, passion, and urgency. The episode concludes by returning to our reality, suggesting that death may not be humanity’s enemy, but the very force that gives life its value.