Not Suitable for Survival
Editor: EndlessFantasy Translation
If a civilization wanted to keep developing for a long time, it was a necessary path to secede from its own mother planet. The resources of a planet were limited, and it was also a great security hazard to gather all civilized members on a single planet. Therefore, every intelligent race with normal thinking ability must step into space after completing the technology accumulation of the mother planet phase--or some other realms. In short, they must leave their cradle.