On one hand, at first it sounds like a silly notion, systems existing in the game which aren’t on the galaxy map. However, the more I contemplate it the more I really wonder if they ARE out there. “Dark” systems so to speak, maybe a system without a main star?
Take Drew’s clues about the FR mystery:
Truthfully, a “dark” system would fulfill all of these criteria. “Depends entirely on who goes looking” could mean that only commanders who are actively scanning the nav panel while searching would even see it. “All you need is wanderlust, patience and an ability to read between the lines” fits too, as you would certainly need patience to go out searching while constantly monitoring the nav panel, and reading between the lines could simply mean between the lines in the nav panel list.
Huh.
We've been told that dark systems are not in the game (at least, not yet) and I think Drew suggested once that we could consider systems with brown dwarfs etc to be 'dark systems', as far as the reference in his book went.
But consider this: Universal Cartographics is controlled by the Pilot's Federation. The same organisation that controls Galnet. The same organisation that can permit lock your FSD and prevent you entering any system they please. They pretty much own your ship's systems.
If they deliberately dropped an inconspicuous star or two from the Universal Cartographics database, who would know? Would your ship's navigation system report it? Outside of the bubble an unlisted system would probably go undetected. If someone did notice, the news could be suppressed long enough for you to have a nasty accident, or explained away as an error.
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WHILE WE ARE WAITING for the story to progress...
Anyone interested in lobbying for a forward exploration support station to be set up on the borders of the rift? You know, for science and all that. Just somewhere to resupply and repair.
That would also fit with this Info:
"And Here The Wheel;
""You don't know what I've seen. I've sailed beyond the Formidine Rift, seen the fleets of Octagonal ships blocking out the stars. I've stood on lost worlds, sterilised clean by the Thargoids and erased from humanity's maps. I've seen the graves from the Thargoid wars, countless headstones stretching beyond the curvature of the horizon, little spots of reflected light dottering the abandoned continent ..."""