Episode 13 imagines an alternate history in which humanity makes first contact with extraterrestrial intelligence in ancient times rather than in the modern era. Long before science and technology, early humans witness visitors descending from the sky — not as conquerors, but as observers and teachers. Communicating through symbols, light, and patterns, these beings guide humanity gently, offering knowledge of agriculture, astronomy, mathematics, and balance without demanding worship or control. Across the world, different civilizations interpret the same encounter through their own cultures. The visitors become gods, celestial teachers, or divine messengers in ancient myths from Mesopotamia, Egypt, Mesoamerica, India, and China. Writing systems, calendars, temples, and monuments arise as attempts to preserve memory rather than to glorify power. Religion forms around responsibility and harmony instead of fear and punishment. Because humanity grows up knowing it is not alone in the universe, science and spirituality never become enemies. The idea that Earth is not the center of existence takes hold early, preventing centuries of cosmic arrogance. Observation and questioning are treated as sacred, and the scientific method emerges far sooner. Humanity reaches space earlier and approaches exploration with caution rather than conquest. After centuries, the visitors leave quietly, allowing humanity to grow independently. Their departure fades into legend, but the understanding they left behind remains embedded in culture. When humanity later detects extraterrestrial signals again, there is no panic — only recognition. Contact is not an apocalypse, but a reunion. The episode concludes by reflecting on our own world, which still listens and wonders in silence. It asks whether humanity needed time alone to develop imagination and curiosity — or whether the sky has already spoken once before, and we simply forgot how to listen.