"They assert that 75 million years ago, an evil galactic warlord named Xenu controlled seventy-six planets in this corner of the galaxy, each of which was severely overpopulated. To solve this problem, Xenu rounded up 13.5 trillion beings and then flew them to Earth, where they were dumped into volcanoes around the globe and vaporized with bombs. This scattered their radioactive souls, or thetans, until they were caught in electronic traps set up around the atmosphere and "implanted" with a number of false ideas -- including the concepts of God, Christ and organized religion. Scientologists later learn that many of these entities attached themselves to human beings, where they remain to this day, creating not just the root of all of our emotional and physical problems but the root of all problems of the modern world." This sounds just like something from a science fiction writer.
L. Ron Hubbard, before he dreamed up Scientology, was quoted as saying "If you really want to make a lot of money, start your own religion.
He, and P.T. Barnum, were both right.