Laws and Formulas

"''"It was against the law

It was against the law

Oh what my momma saw

It was against the law"''"

- Paul Simon, "Me and Julio Down by the Schoolyard"

Some tropes seem to be an expression of an underlying law of fiction. This category attempts to collect these fundamental elements. If some of these entries seem a bit tongue-in-cheek to you ... well, you should probably just get used to that feeling. And yes, sometimes there are two or more that are directly contradictory. We don't write them. We just catalog them.

If you're looking for an index for tropes about actual laws, try Courtroom Index, Crime and Punishment Tropes, and/or Cops and Detectives.

Categories: Tropes:
 * Just in Time
 * Probability Tropes
 * Rule of Index
 * Sorting Algorithm of Tropes


 * Anthropic Principle: For any given story, there exist basic elements that are required for the basic premise to happen; there would be no story otherwise.
 * Artistic License: Accuracy may be sacrificed for the sake of the story.
 * Authority Equals Asskicking :The higher a character is in his hierarchy, the better he is in a fight. This goes double for non-protagonists.
 * Ban on Politics: If a forum is not specifically about political current events, then you are usually not allowed to talk about political current events there.
 * Beauty Equals Goodness: If a character is beautiful, then that character is a good person, either publicly or secretly. If a character is good, then that character will either be beautiful or be treated as beautiful.
 * Beauty Is Bad: If a character is beautiful, then that character is a bad person, either publicly or secretly.
 * The Bechdel Test: At some point, do two female characters talk to each other about something other than men?
 * Bellisario's Maxim: Don't examine this too closely.
 * Catharsis Factor: Video game violence relieves stress.
 * Chandler's Law: "When in doubt, have a man come through a door with a gun in his hand."
 * The Chris Carter Effect: If the fans decide that the writing team will never resolve its plots, then they will probably stop following the work.
 * Chunky Salsa Rule: Any situation that would reduce a character's head to the consistency of chunky salsa dip is fatal, regardless of other rules.
 * Clarke's Law for Girls Toys: Toys marketed to girls don't use technology; they use magic.
 * Clarke's Third Law: "Any sufficiently advanced technology is indistinguishable from magic."
 * Competence Zone: Every television show has its own average age-range of competence. Only people inside that range, whatever it is, are likely to be competent at anything relevant to the show.
 * Conservation of Competence: There is only so much competence a given faction can distribute amongst its membership.
 * Conservation of Ninjutsu: In any martial arts fight, there is only a finite amount of ninjutsu available to each side in a given encounter. As a result, one Ninja is a deadly threat, but an army of them are cannon fodder.
 * Contractual Boss Immunity: The top-level bosses in a game will be immune to the player's most effective or strongest attacks.
 * Contractual Immortality: Main characters tend not to die, and an actor leaving a show is likely to be known beforehand.
 * Conveniently Empty Building: When a building in a modern action film or series is blown up or otherwise totaled, there will be no people or plot-critical items inside when the destruction hits.
 * Convenient Questing: In an Adventure Game or RPG, your next destination will be the closest area that you haven't been able to get to before.
 * The CSI Effect: "I saw them do it on CSI. It has to work that way!"
 * Cute Is Evil: Cute is disturbing and unnatural.
 * Cuteness Proximity: The nearer a character is in relation to something cute, the more likely they are to be reduced to babytalk.
 * Cybernetics Eat Your Soul: Cybernetic implants cause "humanity loss".
 * Death Equals Redemption: Villains close to death can repent before dying.
 * The Dilbert Principle: Incompetent people get promoted to management where they can't hurt things as much.
 * Distribution of Ninjutsu: For any group of ninjas, the ninjutsu in that group will not be evenly distributed; some ninja will be in a more powerful class than others. Which ninja are more powerful will stay constant even when the group as a whole gains ninjitsu.
 * Direct Line to the Author: The creator didn't make this, it was told to them/given to them/found by them.
 * Deggans' Rule: Are there two non-white human characters in a show not about race?
 * Departure Means Death: Someone cannot leave a certain area or they will die.
 * Easy Come, Easy Go: Any large changes to the status quo are lost by the end of the episode.
 * Easily Overheard Conversation: Conversations are exceptionally hard to keep discrete.
 * Emotional Torque: The capacity of a story to make you have emotions.
 * Enthusiasm Versus Stoicism: How strongly a character expresses emotion.
 * Ermine Cape Effect: Royals will always dress in full regalia, even in private.
 * Every Car Is a Pinto: Car destruction results in guaranteed explosions.
 * Evil Is Sexy: All things being equal, evil characters are sexier.
 * Evil Makes You Ugly: The more evil you act, the more evil you look.
 * Faction Calculus: Factions in strategy games follow increasingly complex gradients as more factions are added.
 * Failure Is the Only Option: The goal of the series won't be achieved because that would end the series.
 * Finagle's Law: Anything that can go wrong will go wrong.
 * The Firefly Effect: Sometimes, viewers are so afraid that a show will be Screwed by the Network that they will refuse to watch it, even if it sounds appealing to them.
 * First Girl Wins: The first girl introduced as a potential love interest will become the love interest.
 * Last Girl Wins: When the first girl doesn't win, the final girl the main character meets will become the love interest.
 * First Law of Gender Bending: Once a girl has been created, circumstances will conspire to keep her that way.
 * Second Law of Gender Bending: Genderbending will make people enjoy their new gender more than their previous gender.
 * Third Law of Gender Bending: Genderbent characters will either embrace or be forced to adopt the stereotypes of their bent gender.
 * Attractive Bent Gender: Genderbent males make attractive girls.
 * First Law of Metafictional Thermodynamics: The sum of the energy and mass of a work's plot remains constant. Trimming continuity or simplifying things releases energy and strict continuity or added complexity absorbs energy.
 * Second Law of Metafictional Thermodynamics: The entropy (level of destruction) in a fictional system will increase until the writer's emotional equilibrium is restored.
 * First Law of Resurrection: The will of a creator to bring a dead character back to life trumps everything else.
 * First Law of Tragicomedies: As the tension in a tragicomedy increases, the level of drama will increase and the level of humor will decrease.
 * Fleeting Demographic Rule: A gimmick or storyline can be reused after a few years of dormancy due to fanbase turnover.
 * GIFT: Normal people, given anonymity and an audience, are terrible people.
 * Godwin's Law: Probability of a mention of Nazis rises to one as length of discussion increases.
 * Godwin's Law of Time Travel: Probability of Hitler winning World War II rises to one as use of time travel increases.
 * Godzilla Threshold: The level at which something is so bad that any means of destroying it is justified.
 * The Good Guys Always Win: If the story has a hero who fights a villain, the hero wins.
 * "Grand Theft Auto" Effect: If a game plays a Real Life song enough, players will always associate it with that game regardless of context.
 * Gravity Is a Harsh Mistress
 * Hanlon's Razor: Don't assume malice when stupidity is an adequate explanation. The first time.
 * Hitler's Time Travel Exemption Act: Time traveling to kill Hitler doesn't work.
 * Immortality Hurts: Being immortal isn't fun on its own.
 * Immortal Life Is Cheap: Everyone can go all out on immortal characters, since they can't die.
 * Immortal Procreation Clause: A species' fertility is inversely proportional to its lifespan.
 * Incendiary Exponent: Actions performed are more impressive while on fire.
 * Inevitable Waterfall: Characters on a river will encounter a waterfall.
 * Inverse Law of Complexity to Power: More complicated elements offer less power than simple ones.
 * Inverse Law of Sharpness and Accuracy: Characters get hit more with blunt weapons than with sharp ones.
 * Inverse Law of Utility and Lethality: The coolest violence is the least useful.
 * Kryptonite Factor: An Achilles Heel that is a substance or state that only affects the hero.
 * Kryptonite Is Everywhere: A hero with a rare weakness will see the weakness appear more readily than it should.
 * Kuleshov Effect: Juxtaposition of images can make there seem to be meaning to the images that wasn't there in the first place.
 * Last Confession Wins: The last girl to confess her feelings for the hero will be the one who wins him.
 * The Law of Conservation of Detail: All details are important or they wouldn't be there.
 * Chekhov's Armoury: Chekhov's Gun for multiple items.
 * Chekhov's Army: Chekhov's Gunman for multiple characters.
 * Chekhov's Boomerang: A Chekhov's Gun is used twice; the second use is unexpected.
 * Chekhov's Classroom: Information in a lecture will become applicable later on in the work.
 * Chekhov's Exhibit: Fancy artifacts in museums will become important to the plot.
 * Chekhov's Gag: A joke sets up further unexpected jokes later on.
 * Chekhov's Gift: Chekhov's Gun is given as a gift.
 * Chekhov's Gun: An unimportant item introduced early in the story becomes important later on.
 * Chekhov's Gunman: An unimportant character introduced early in the story becomes important later on.
 * Chekhov MIA: Absent characters in a character's backstory will show up given sufficient time.
 * Chekhov's Skill: A skill learned earlier becomes applicable later on.
 * Law of Conservation of Normality: No matter how weird things get, you still have to go to work.
 * Law of Cartographical Elegance: The world is always easily represented on a map.
 * Law of Chromatic Superiority: Rarer colors make things better.
 * The Law of Diminishing Defensive Effort: The less someone tries to defend, the less likely they need to.
 * Law of Disproportionate Response: How important something is decreases proportionally to the intensity of the characters reaction to it.
 * Complaining About Rescues They Don't Like: Saving someone's life isn't always appreciated.
 * It's the Principle of the Thing: Someone else takes your minor annoyance as a serious grievance.
 * The Law of Fan Jackassery: Huge fanbases reflect the amount of jackassery in the general population; tiny ones are close-knit; ones in between can be insular and dickish.
 * Law of Inverse Fertility: The fertility of a couple is inversely proportional to their desire to have a child.
 * Law of Inverse Paternity: If you hope he's the father, he's not; if you hope he isn't, he is.
 * Law of Inverse Recoil: Weapons have recoil inversely proportional to their real life equivalents.
 * Law of Inverse Romantic Interest: The interest of other characters in a certain character is inverse to the character's own interest in romance.
 * Law of One: Bigger problems are easier to overcome.
 * Law of One Hundred: Platform games will have collectibles that give you extra lives with enough of them.
 * Lies, Damned Lies, and Statistics: Statistics can tell you anything.
 * Linear Warriors, Quadratic Wizards: Magical fighters advance in power far faster than physical fighters.
 * Literary Agent Hypothesis: The fictional world is real and everyone including the author is trying to cover it up.
 * Locard's Theory: Everything leaves a trace on everything else.
 * Lord British Postulate: Invincible characters in games will still be subject to attempts to kill them.
 * The Magazine Rule: There's a magazine for everything.
 * The Magic Poker Equation: Luck is dependent upon skill and how important the outcome is.
 * Magnum Opus Dissonance: Soulless moneymakers will be more popular than the painstaking masterpiece.
 * Million-to-One Chance: Vast odds will favor the exceptional.
 * Moff's Law: In criticism, someone is going to bring up 'Why can't you enjoy it for what it is?'.
 * Monster Delay: When the Big Bad is a monster, hide him as long as possible.
 * The Morality-Mortality Equation: Karmic retribution comes back to kill the evildoer's companions.
 * MST3K Mantra: "It's just a show."
 * Murphy's Law (a disambiguation page - if you want the trope, see Finagle's Law)
 * Never a Self-Made Woman: A female character is likely to be part of the story as a relative or Love Interest to one of the male characters. If she holds skill or power, it is likely to be attributed to the influence of a man.
 * Nominal Importance: If you're not named, you don't matter.
 * No Transhumanism Allowed: Sci-fi works tend to be light on or demonize transhumans.
 * Occam's Razor: All things being equal, the correct answer is often the simplest.
 * Offscreen Inertia: When you leave someone, they continue doing what they were doing unless proved otherwise.
 * The Peter Principle: Employees will be promoted until they reach a position where they are incompetent.
 * Plot Tailored to the Party: A party of characters with different abilities will always face challenges where everyone's abilities are relevant.
 * Poe's Law: A parody of an extreme view can be indistinguishable from its real expression.
 * Popularity Polynomial: Things will phase in and out of popularity as their fans age.
 * Reality Is Unrealistic: Things that are too contrived or silly to be believed in fiction will happen in reality.
 * Redemption Earns Life: A villain's redemption can save their life.
 * Redemption Equals Death: ...but usually when they do, they'll end up dying soon.
 * Redemption Equals Sex: "Karma gets you laid!"
 * Refuge in Audacity: Being so offensive it loops back around to normal.
 * Rule Number One
 * Alliterative List
 * Rule of Animation Conservation: Anything animated is animated for a reason.
 * Rule of Cautious Editing Judgment: We don't hate your views, we don't want your views to start an argument.
 * Rule of Cool: Suspension of disbelief can be stretched for cool acts.
 * Rule of Cute: Adorable things are allowed to make no sense.
 * Rule of Drama: Any potential for conflict will not be ignored.
 * Rule of Empathy: The characters we see are more successful in what they do than others.
 * The Rule of First Adopters: Porn drives adoption of new media.
 * Rule of Fun: Incongruities can be ignored if it's fun.
 * Rule of Funny: It doesn't have to make sense if it's funny enough.
 * Rule of Glamorous: Practicality takes a back seat to looking good.
 * Rule of Perception: If the audience doesn't see it it doesn't exist.
 * Rule of Personification Conservation: Non-humans should be non-human for a reason.
 * Rule of Pool: Pool plus clothed person equals someone's getting wet.
 * Rule of Romantic: Reality can get bent if it obstructs romance.
 * Rule of Scary: Scary things don't need to be logical.
 * Rule of Sean Connery: Certain actors make anything better.
 * Rule of Sexy: If it's sexy enough, no one will care that it's not practical.
 * Rule of Seven
 * Rule of Symbolism: The need for symbolism trumps realistic concerns.
 * Rule of Three: Things coming in three are pleasing.
 * Rules of Orphan Economics
 * Rules of the Internet
 * Rule 34: There is porn of everything.
 * Rule 34 Creator Reactions
 * Rule Fifty: All franchises will have a crossover work about them.
 * Rule 63: All male characters have a female version.
 * Rules of the Road: Road signs mean exactly what they say.
 * Rule Zero: The GM is always right.
 * The Schlub Pub Seduction Deduction: Hot women talking to average guys in bars means they have ulterior motives.
 * Schrodinger's Gun: Only what has been revealed to the audience is fixed, everything else can be changed.
 * Science Cannot Comprehend Phlebotinum: Science can't understand wacky stuff.
 * Science Is Bad: Science destroys all that is good and beautiful about the world.
 * Seinfeld Is Unfunny: The thing that pioneered a new style has been copied so much it's no longer new at all.
 * The Sidekick Theory of Heroic War: The sidekick to the hero is always the reason why the hero's kingdom wins the war.
 * Significant Birth Date: Any included birthday is either important to the plot or to the symbolism.
 * Significant Reference Date: When fictional and real dates are made to line up amusingly.
 * Sliding Scale of Beauty
 * Sliding Scale of Fourth Wall Hardness
 * Sliding Scale of Free Will vs. Fate
 * Sliding Scale of Idealism Versus Cynicism
 * Sliding Scale of Shiny Versus Gritty
 * Sliding Scale of Silliness Versus Seriousness
 * Sliding Scale of Video Game World Size and Scale
 * Sliding Scale of Visuals Versus Dialogue
 * Sliding Scale of Villain Threat
 * The Smurfette Principle: There will be only one female character in animated features not marketed solely to girls.
 * Sorting Algorithm of Evil: Enemies will appear in order from least to most evil.
 * Sorting Algorithm of Face Heel Turning
 * Sorting Algorithm of Mortality
 * Sturgeon's Law: Most of any type of thing sucks.
 * Sukhomlinov Effect: The army with more elaborate uniforms loses.
 * Super Weight
 * Tenchi Solution
 * Theiss Titillation Theory: Outfits are sexier if they look like they're going to expose someone.
 * The Theorem of Narrow Interests: The more specific the thing is you're looking for, the less you'll find.
 * Theory of Narrative Causality: Things happen because the plot says they should.
 * Three Month Rule: In professional wrestling, canon lasts only for three months.
 * Too Many Cooks Spoil the Soup: The more people work on something, the less likely they are to succeed.
 * Triang Relations
 * Trope Example Laws
 * The Zeroth Law of Trope Examples: Shakespeare did it.
 * The First Law of Trope Examples: ''The more popular a trope, the more likely there is an example made up solely of Japanese words and Wiki Words.
 * TV Never Lies
 * Twain's Observation on Originality: Polish and novelty are mutually exclusive.
 * Two Girls to a Team: 3:2 male to female ratio avoids Smurfette Principle without making it all about the girls.
 * The Tyson Zone: The zone in which a celebrity is so bizarre any story about them seems plausible.
 * Underdogs Never Lose: The plucky disadvantaged guys come out on top always.
 * Unspoken Plan Guarantee: The less is said about a character's plan, the more likely it is to be shown to work.
 * Variable Terminal Velocity: How fast you fall depends on who and what you are.
 * The Villain Makes the Plot: The villain is the basis of conflict and therefore creates the plot. Otherwise it'd be about four people standing around in a pub.
 * What Measure Is a Non-Human?
 * The Wiki Rule: There's a wiki for everything.