This happened during Star Trek Day, according to TrekMovie, but it somehow flew past me entirely until last night. Was I blind? Probably, but I didn't see a thread on it, so hopefully this is okay. "An ancient power whose very existence has been deliberately hidden for centuries" really has me wondering. How many centuries? And how ancient? This certainly strikes me as something that might have its roots in prior canon. On the other hand, if its existence has been successfully hidden from the Federation, maybe not so much. I know there's not much to chew on here, but I figure it's worth a little friendly speculation.