Well, as we know it, there are likely only 5. I don't know how powerful each one is, but they are strong enough to pull people from different universes.

[He sighs and shakes his head a little, though.]

Always far more questions after we've received answers. One thing is for sure, we do need to figure out what happened out there. Because if this barrier ever fully comes down and we can't put it back up, we will have to endure that wasteland. And if there is something in the air that changed people, it will change us too.