Ok, I am going to post with a bit of logic, and on the assumption that FD actually know what they're doing with this whole UA thing. If they don't know what they're doing, then this whole thread, all the clues that have been given by DB and MB have been totally pointless, and has lead everyone on a wild goose chase. All future points will be made on the assumption that FD know what they are doing, and have thought about the implementation of this UA. I am going to ignore all anecdotal evidence and hearsay, because we have no reliable or tangible way to prove it or otherwise.
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Let's start with who FD would like to implement this for. Is it going to be: A) only people who have read the official books, and know the lore about the game. B) only people who have read the 1.2 patch notes. C) everyone in game, regardless of their knowledge of the lore, or the patch notes.
I hope you said 'C', as that is what would make most sense from a design perspective. So we can automatically, and logically discount anything from 'A' and 'B', that don't have 'C' in common. With me? Good.
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Ok, now we're getting somewhere. So if they want this to be accessible for everyone in the game, and we assume they want it to be found, how can they let the player base know about it, without handing it to them on a plate? A) Hope the player base run into it randomly, in a playable area that is at least 400 billion separate instances. B) Give only Vague comments on the forum, and hope the entire player base reads it. C) Give them a clue in game, that everyone has a chance to see.
I hope you said 'C'. So how would they give a clue in game, that everyone has a chance to see, thus reaching and fulfilling the last design decision? I guess that it would be GalNet, just how they spread news and clues about how other things in the game are shaping up.
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Now we're really getting somewhere. So what clues have been released in GalNet post 1.2 implementation, that involve things that could be to do with an unknown artefact? I know of only one:
https://forums.frontier.co.uk/attachment.php?attachmentid=30574
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So what can we glean from that article?
1. Shipments of unusual cargo have been passing through the old world systems (a region).
2. The rumours of the contents are mixed, thus suggesting random (and rare).
~The we get to the meat~
3. Be on the lookout for suspicious activity. Where do we know suspicious activity takes place in systems? (signal sources)
4. But avoid any unknown wings. So we are to avoid them (implying danger) and they are wings.
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So going by that evidence (and combining both 3 & 4 into something tangible), what signal sources contain both danger and wings?