The holographic screen was blank.
Only its azure background shone before the academicians' eyes.
"Nothing else?"
The corner of Lü Yongchang's mouth twitched, helplessness filling his eyes. "This thing... could it be that only level five civilizations use it?"
"That's very possible."
Social Sciences Academician Lin Zile's voice came from beside him. "The [Silicon Stingray Civilization]'s behavior shows that silicon-based civilizations have their own communication bands."
"If we extrapolate from that..."
"Civilizations at different levels should also have their own communication bands."
"To a level six civilization, messages from level five civilizations are just noise."
"That may be the main reason for this."
"Of course, there may be another reason." Lin Zile shrugged as he spoke. "There are too many level five civilizations nearby."
Lü Yongchang froze for a moment at that.
Normally, the farther one traveled into a galaxy, the more likely one was to encounter advanced civilizations-a pattern closely tied to the galaxy's matter density.
According to the matter density-civilization level model Human Civilization had established in the Milky Way Galaxy, this resource-rich region near the interior of the Andromeda Galaxy should have been better suited to the developmental needs of level six civilizations.
When he turned his gaze to the star map, he suddenly realized something.
The AGBH-01 and AGBH-02 binary black hole region.
That region lay in a relatively resource-poor part of the Andromeda Galaxy-precisely where level five civilizations should theoretically congregate.
"You mean... the level five civilizations that originally lived near the AGBH-01 and AGBH-02 binary black hole region have all migrated to the surrounding star regions?"
Lin Zile nodded and quickly marked out several areas on the holographic projection before him.
"We can make a rough estimate based on the effective range of level five civilizations' tachyon communication."
"Once the fleet travels another thirty