Stories in sacred books have not convinced most people that one god or another is real. Merely pointing out the complexity of the universe has not been enough either. At this point in time it looks doubtful that anyone will ever come up with something that will show that a god is undeniably real. For centuries, brilliant theologians, monks, imams, authors, and even many scientists have taken their best shot at showing the entire world that their god was real. But none of them came close to succeeding.
