Parallel Universe theory could it be true

From ancient time of Einstein, it had been really confusing when we speak about relativity and Quantum physics or Quantum theory. Now another theory based on quantum which exists and cannot be denied is the parallel universe theory according to which there are several parallel universe that exists similar to ours and there are people like you and me,. a xerox copy of us existing on those universe doing weird things. And according to the quantum theory combined with the parallel universe theory, there are different patterns or weird things happening on the parallel universe,. of example lets say I've written this blog now and you are reading it, and in the parallel universe it could be the vise versa,.

It is really complicated to understand and to accept,. so understanding the readers mentality i provided above with a short description. But if you would like to go on ,. the below is a detailed explanation of Quantum and Parallel theories.

First what is quantum, relativity is what we are already familiar with according to which everything happens as an effect of something. But this is only true in the enlarged view, i.e in the real world, what if we move on to atoms ?., the path of electrons are unpredictable and everything within atom happens weird. This leads to quantum theory which says things occurs randomly and anything is possible in a quantum world. But how can you say that anything is possible, if i can't able to fly high, or if i list out the things that i cannot do ,..... So this questions let to emergence of a new theory from our scientists that what we see around us are parallel universe billions of miles apart from our universe. And they contain humans like us,. our very own xerox copy on those universe, and what we are not doing or lets say not able to do here in our universe is what actually they can do,. or they are doing in their universe.... Lets say i loved a girl here, and she hates me so i broke up with her in this universe, then in parallel universe the girl could have accepted my love and i could have been dating her there.
This post can be continued in future with respect to the response i get from the users, and be frank to post your comments and questions.