WTF was that? is an in-game social media post discussing the appearance of Prometheus during a speech by Mayor Hermanubis.
It appears in every playthrough and is accessible from the very early in the game's story.
Transcript
Budahas (917): Seriously, what the Founder was that thing in the sky? We all saw that, right? I didn't accidentally turn on Sleep Mode while Herman was talking, did I? (I mean it's always tempting...)
Ovis (909): I believe it was a sign from the Founder! What else could it be, on this day of all days?
Zagoran (211): Pretty incoherent for a sign. It didn't even finish whatever it was trying to say. What, does the Founder have energy insufficiency problems too?
Thecla (862): The Founder works in mysterious ways.
Ovis (909): How could such a remarkable display of unimagined powers not be a sign?
Option 1:1k (1000): It's something, but not necessarily the Founder.
Budahas (917): Sounds reasonable enough to me. Something weird is going on for sure, but what? We'll have to see.
Thecla (862): Riddles and puzzles are the foundations of our journey. So it began, perhaps so it will continue.
Option 2:1k (1000): It could be a sign of life, but that doesn't mean it's intentional.
Budahas (917): Sounds reasonable enough to me. Something weird is going on for sure, but what? We'll have to see.
Thecla (862): Riddles and puzzles are the foundations of our journey. So it began, perhaps so it will continue.
Option 3:1k (1000): It could be coincidence. A technological accident.
Zagoran (211): Exactly. Maybe some old projector somewhere hiccuped and farted out this nonsense. Or maybe it's something important, but broken. Or it's a hoax. Or it's nothing. Either way, Byron has been right all along. We need to investigate and find out.
Thecla (862): Riddles and puzzles are the foundations of our journey. So it began, perhaps so it will continue.