Do you believe in parallel universe?

If this is true, I need to go find myself in that universe and borrow some money. :)

I think there possibly is,I dont see this from the perspective of physics,just have this kind of feeling just like the move Back to the future ,there may be another you in different time and space doing something.Also have you ever had this experience that you are going through something exactly like what you have alread done before,I do have this experience.