Do you believe in parallel universes? Universes in which "you" may exist in some but not others, and that there are an infinite amount of parallel universes out there all with differences. Some people believe that each decision anybody makes creates a new parallel universe. Others believe in a set amount or whatnot. Others believe there is only one reality and whether there are multiple universes in that reality, who knows. What do you think? Is it just your personal preference or do you have a reason behind your beliefs?