Parallel Universe

Frist to understand PU we need to know of Schrödinger's Cat it other name is cat in a box thought experment. Schrödinger's Cat says that you put a cat in a box with a hammer and a vile of poison, you don't know when the hammer will breack that vile so while the cat is in the box it is in a state of Quantum superposition, of being both alive and dead at the same time. In the picture to the left show's Schrödinger's Cat