No, really. If there are an infinite amount of parallel universes in which every possible combination of events occurs, then one of those parallel universes would contain a newborn United States with a John Lennon song as its national anthem. Not that I'd want to live in such a universe. But if the science people are correct, then such a universe does exist.
There are even parallel universes in which I am the president of the United States. I'm intrigued with that one and maybe someday the technology will exist to take me to one of those. Hopefully one in which I am a successful president.