It's an idea we've all entertained from time to time I suppose....and certainly not the first time it's popped up here....
Just as plausible as an extra-terrestrial origin I suppose, as FTL travel is just as miraculous tech-wise, as time travel. Of course, we're talking
pure speculation. We know that something with advanced capabilities is buzzing around, we just don't know the origin.
From all I've read, seen, etc. it appears the government's position is that they are of an extra-terrestrial origin, and since they likely know far
more than I on the subject's realities, gonna have to go with them.