Because you asked for it.
A: It's like regular superposition, but with particles. And also with cats. Lots and lots of cats in tiny little boxes.
A: Because, math.
The eternal struggle of being a cat in the box
A: Fine, but don't come crying to us when you realize you've been in a superposition the whole time.
The Multiverse: because you can always choose another path
That's all the questions we have time for today. Don't make us quantum-leap into another dimension.