Quote Originally Posted by ObsidianFire View Post
So the same aether drain prior to the 7th Umbral Calamity is being seen world-wide again. Unless Urianger and Y'shtola are mistaken, then it's very good evidence for another Calamity happening. At least, until the next patch and we find out more information.
That still doesn't rule out a Flood of Light. It could just mean that the flood itself *is* the Calamity. (an Astral calamity to match the Umbral?)

If we know it happened before the Calamity *and* before the Flood, that just further suggests they could be the same thing.