For civilizations that had ventured into the stars, a few years truly passed in the blink of an eye—barely enough time to transport goods from one star system to another.
Just as humanity and the Orange Star Civilization had done.
The two civilizations had spent less than two years transporting the Biosphere Resources their civilizations possessed to this star system, though humanity had arrived a few months earlier.
From this, it could be inferred that the Orange Star Civilization's main civilization was farther away than humanity's. However, that calculation was based on humanity's own travel speed, so applying it to the Orange Star Civilization would not be accurate.
It was precisely because humanity was curious about the Orange Star Civilization that they accidentally learned an unexpected piece of news from the Dynamic Image Civilization: the Orange Star Civilization's travel technology was extremely backward, and its Warp ships could only travel at one times the speed of light.
The reason they had returned to collect their goods so quickly this time was that the Dynamic Image Civilization had refitted several of their warships and agreed to sell them one thousand Warp Engines. The Dynamic Image Civilization called those Warp Engines Level 2 Warp Engines, while referring to the Orange Star Civilization's Warp Engines as Level 1 Warp Engines.
It was also this news that gave humanity a clear understanding of travel technology at the Level 4 Civilization stage. They realized that they had somehow skipped the beginner stage and leaped straight into the intermediate level. Under the normal course of technological development, a civilization that reached the Level 4 Civilization stage would only possess Warp technology capable of one times the speed of light.
Civilization levels were not like the ranks of mystical cultivation techniques, with a fixed number of levels