GilaMonster (12/1/2015)
Ed Wagner (12/1/2015)
They appear to have a one-shot use though, before disappearing to somewhere else.Probably something to do with collapsing the quantum mechanical wave function. Using one collapses the function of possible problems to one, and as a side effect sets the crystal ball's location function to a constant across all of space-time.
If the location function is a constant, it certainly isn't here. 😛 I think it must use dark matter in some way because when I try to answer some questions, I sure feel like I'm taking a shot in the dark.