Lower Civilization? My Fleet Is Going to Overturn the Universe

[Super technology + climbing technology tree + genetic evolution + grand world view + civilizational leap + interstellar hegemony] The earth in parallel time and space was destroyed, and the main body of human civilization that had entered the interstellar era was destroyed, with only tens of thousands of people surviving. Without the support of the resources of their home planet, the remaining humans are on the verge of extinction. Ning Yi traveled through time, starting from saving the surviving humans on the moon, gathering the remaining power of the solar system, using Mars as the foundation, integrating resources, developing technology, building an interstellar fleet, and leading the surviving humans to escape the solar system and step into the star sea. The endless universe is full of mysteries and unknowns. It is the normal development of cosmic civilization that higher civilizations enslave and suppress lower civilizations. In order to survive, billions of civilizations are engaged in constant disputes, and war and destruction spread across the stars. The universe is dark and full of dangers! How will the reborn human civilization face it?