When establishing these 100 "Hub Planets," the Silver Civilization did not choose habitable planets where civilizations had already emerged. Instead, it chose barren planets within stellar habitable zones, where not a blade of grass grew.
For example.
If a Hub Planet were to be established in the Solar System, since Blue Star already had life, the Silver Civilization would not choose Blue Star as the Hub Planet. It would choose Mars instead.
Why? Naturally, because it wanted to start from scratch and build everything anew.
At first, these Hub Planets were utterly desolate, with no living creatures whatsoever.
The Silver Civilization spent a long time transforming them with greenhouse gases, eventually turning them into habitable planets.
(It was worth mentioning that Mars could also be transformed using greenhouse gases. If a greenhouse effect were created on Mars, it could likewise be transformed into a habitable planet suitable for life.)
The "Hub Planet Transformation" project took a very long time—millions of years at the shortest, and twenty to thirty million years at the longest.
At the time, the Native Civilizations of the Milky Way Galaxy found this utterly incomprehensible. Some civilizations even mocked the Silver Civilization for "wasting resources on pointless nonsense."
They could not understand why the Silver Civilization would abandon perfectly good habitable planets and insist on transforming new ones itself.
But once the "Hub Planet Transformation Project" was completed, the Native Civilizations that had been watching the spectacle realized they had been wrong—absurdly wrong!
After the Hub Planets were transformed, the Silver Civilization sent large numbers of Silver Federation Humans to settle on them.
They came for only one purpose—building gates!
More precisely, they built ultra-long-range teleportation gates capable of transmitting across star systems. At the same time, they constructed gates between the Hub Planets and the