The answer to the ultimate question about life, the universe and everything must be 42.

And the answer to the ultimate question of life, the universe,and everything is most certainly 42.Just like real life, fictional worlds operate consistentlywithin a spectrum of physical and societal rules.That's what makes these intricate worlds believable, comprehensible,and worth exploring.In real life, the Law of Gravity holds seven book sets of "Harry Potter" to millions of bookshelves around the world.We know this to be true, but we also know that ever since J.K. typed the words wizard, wand, and "Wingardium Leviosa," that Law of Gravity has ceased to exist on the trillions of pages resting between those bookends.