What if we (humans, life in general) are just a temporary infection in some other (incognizable to us) system? And what if that infection is just about to be eradicated? What are our options?
Multiverse?! Really? Why not a double-folded universe? Or quadruple-folded multiverse? Theoretical physicists are a bunch of smart guys thinking about nonsense.
The idea of parallel worlds implies that there are things that aren’t obvious. Unsettling, in essence, this fact can be used for manipulative purposes later on.