Don't go into Hollows.
I know, I know, there are Ether resources in the Hollows, bizarre creations, even ruins of the old civilization — all invaluable treasures.
But don't forget about the spatial disorder, the monsters, and mutants running rampant. Ultimately, this is a disaster that could swallow the world. Hollows are not where ordinary people should go.
So don't go into Hollows.
Or at least, don't go in alone.