It's exactly what you need to unpack itself.
"Wait a second. We knock out the turret to get the fighters. But to get the turret, we've gotta get
through the fighters. We're dead."
You have two chests that you need to open. The key to chest one is in chest two and the key to chest two is in chest one, now what?
A Catch-22 Dilemma is a situation that the character cannot resolve or get out of, because they have nowhere to start to work on it. Each step they must take relies on completing the step before it, but starting the first step requires already having completed the last one.
It generally appears in one of two types: either each of the actions they must take or items they must acquire to progress rely on some other action already having been taken or item having been acquired first, or two or more of the actions they need to take or things they need to acquire are mutually forbidden.
Both types leave the character frustrated and with nowhere to start in solving the problem or escaping the situation.
Often, the solution lies in taking a third choice
or Cutting the Knot
, or, in games, finding the Dungeon Bypass
the designer or GM overlooked. When time travel is possible, you can sometimes pull this off with a Closed Time Loop
In the form of "You must submit Document A with your application for Document B, but you have to present Document B to get Document A", it's a favorite tool of Obstructive Bureaucrats
. Rules Lawyers
or people attempting to cause problems by Bothering by the Book
also use it, since in virtually any bureaucracy or set of rules, there's at least one set of rules or regulations that are interlocked or contradictory and can be exploited this way.
In common usage, a Catch-22 Dilemma is also known as simply a "Catch-22", after the book of that name by Joseph Heller
. We have a page for the book at Catch-22
, which is why this trope page doesn't use that exact name. Other names for it are a "Closed Logical Loop" or a "Circular Bind"; in engineering and programming, it's called "The Deadly Embrace"; another term in programming is a "Deadlock".
Related But Different Tropes:
- Morton's Fork: The same bad result occurs no matter what you do. The reason it occurs is different with each option, though.
- Circular Reasoning: A logical fallacy where you claim to prove something simply by asserting that it's true (usually in slightly different wording, and often with more than two steps intervening between the postulate and the assertion).
- Chain of Deals: where a character trades Item A to get Item B, trade that to get Item C, and so on. A Chain of Deals may become a Catch-22 Dilemma if the last item is needed to get the first item.
- Logic Bombs are sometimes built on Catch-22 Dilemmas.
- The Key Is Behind the Lock is a subtropenote where an item is locked, and the key to the lock is in the item. You need to unlock the lock to get the key to unlock the lock. They are most often solved by finding some way to open the item without the key
- Unstable Equilibrium: a losing RTS player needs more resources to adequately match their opponents, but the only way to get those resources is to take them from said opponents ... whom they can't match with the resources they have.
open/close all folders
Anime and Manga
- One Piece:
- Discussed in the Fishman Island arc of , during a flashback: Vander Decken is talking about marrying Princess Shirahoshi for her latent powers, who was still 6 at the time. His subordinate then tells him about a national treasure, a kind of drug that can age up whoever consumes it, and it might solve the age problem. The problem is, as said subordinate points out, the treasure is tightly guarded by the royal palace and the only legal way to obtain it is... marrying the royalty (the princess, in this case). In the end, though, Decken just decides to wait until she's aged normally.
- In the Thriller Bark arc, Gecko Moria steals Luffy's shadow, uses it to animate a giant zombie called Oars and sets it on the rest of the crew. One way to return the stolen shadows is to defeat Moria, and as the battle goes on it seems like that the only way to defeat Oars is to remove Luffy's shadow. At one point Moria appears in a special cockpit in Oars' chest, giving the crew this dilemma; They need to get to Moria to stop Oars, but in order to get to Moria they need to beat Oars! Eventually the crew gets around this by breaking Oars spine so that that the zombie can't move, even with Luffy's shadow.
- In My Immortal: if you aren't a legit goff, Tom Rid won't give you the "real" goffic clothes. But you can't be a "real" goff without them, so you can't get the "real" goffic clothes unless you already have them. Oh, and you're not considered a true goff unless you know all goffic knowledge, but if you didn't have said information at some point, then you're a poser.
Film — Animated
- Sugar Rush Speedway in Wreck-It Ralph invokes this trope. The nine racers who will be on next day's roster are decided by a race held after the arcade closes, and the entrance fee is a coin; those who don't place in the top 9 don't get on the roster, thus can't earn any coins that day, so if they use the last of their coins to enter the qualifying race and don't place, they can never again be on the roster and thus can't ever get any more coins. This is done to keep Vanellope, supposedly a glitch, from racing, though why it hasn't yet caught any of the others is not explained.
Film - Live Action
- In Red Tails the brass are trying to decommission the Tuskeegee Airmen because they haven't scored any air-to-air kills. This is because they haven't been assigned to an area where such kills are available, officially because they haven't scored any air-to-air kills. In this case it's a blatantly obvious cover for simple racism on the part of the brass, and the problem is solved when the unit's major and his white boss who helped him set the unit up call the brass on their BS and basically browbeat them into letting the Red Tails provide the air support for an amphibious assault. They not only down several Bf-109s in the air, they follow them back to base and have a fun time blasting it to pieces.
- Lampshaded by Alex Rogan in The Last Starfighter. In the end they Take a Third Option they didn't know was available at the time of the conversation: they hide in a cave so they can hit the command ship from behind and get the turret without needing to hit the fighters, which are several kilometers ahead of the carrier.
- Catch-22 includes many of the same examples as the trope-naming book.
Live Action Television
- Supernatural: The only thing capable of killing a dragon is a special dragon-killing sword, which can only be made by using the blood of a dragon when it's forged. This is explained in other material. (spoiler)
- The detectives in Law & Order have run into this a few times: they know evidence is somewhere, but can't prove probable cause to search the place. Essentially, to find the evidence, they need the evidence. Generally resolved by finding a weak piece of evidence that lets them search the place they really wanted to.
- "Dear Liza (There's a hole in my bucket)". Henry needs to cut straw to fix his bucket, but first he needs to sharpen his knife to cut the straw, but before that he needs to fetch water to sharpen his knife, but he needs his bucket in order to fetch the water. And his bucket needs to be fixed to fetch the water...
- "I Can't Defeat Airman". The narrator playing Mega Man 2 can't get through Heat Man's stage, noting it would be easier with Item 2, which is acquired by defeating Air Man — who the player can never beat. It goes on to note Air Man would be easier to beat with the Leaf Shield — but the player can't beat Wood Man either. Though it's not noted in the lyrics, Wood Man's weakness is the Atomic Fire you get from Heat Man so it's a unwinnable circle.
- The chorus to "Graphene" by Midwives of Discord (Relevant lyrics have been bolded):
You cannot love someone else
Until you accept yourself
My inner demons might have friendly faces
But dont give them a reason to come out of their places
You cannot accept yourself
Until you're loved by someone else
They bleed green they spit hot mace it's
Grotesque, the more they feed the darker my day gets
Mythology and Religion
- The Pirkei Avot, a classical Jewish text, states that God created the first pair of tongs, because you need a pair of tongs to fashion a pair of tongs.note
- FoxTrot had a comic where Jason asks Roger if he can hang out with his friend Marcus, and Roger answers "I'm okay with it if your mom is." Then when Jason asks Andy, she says "I'm okay with it if your father is." The comic ends with Jason reading a book on formal logic, trying to figure out whether they actually gave him permission or not. The next comic had Paige asking a similar question and getting the same answers... and she simply interprets that as an okay.
- Invoked in Dilbert by Wally as an excuse for being unable to get any work done.
- Paranoia: The adventure included in "Traitor's Manual" ran the PCs through a five-link Catch-22 Dilemma as they tried to get themselves established as undercover agents. The way out of the circle was to use their secret society connections to get one of the needed forms.
- In Phillip Jackson's Sequential Art, panel 136, Pip has to play as a Level 1 serf, and needs armor and a sword to go on treasure quests. (He had a sword and armor upon first spawning in the game, but they were stolen by a Griefer who he tried to join a Pick-Up Group with.) However, armor and swords cost money, which is earned by obtaining treasures. Pip lampshades his dilemma, then solves it by killing grasshoppers to level up.
- The Angry Video Game Nerd sees Stalactite Spite this way in a Batman review, saying that if you go under it, it hurts you, and to make it fall, you have to go under it. What a paradox.
- Freeman's Mind on the Malevolent Architecture of Black Mesa: "Why would you get to the ladder? To fix the elevetor! How do you get on the ladder? You take the elevator that doesn't work! Who thought this one up?!"
- One that's all too common is businesses that offer starting-level jobs, but require that the person hired already have a certain level of experience. You can't get the job without having experience, but you can't get the experience without having a job. And that's all that needs to be said about it.
- One early railway system included the regulation: "Should two trains meet on the same track, neither shall proceed until the other has retreated". Lawyers and law professors swear up and down that the regulation was actually a statute in Kansas; the state of Kansas is famous in the American legal community for producing well-intentioned legislation that nevertheless is inevitably poorly drafted, requiring extensive unnecessary judicial interpretation later.
- One theoretical application of the Alcubierre Drive that would not require large amounts of exotic matter would be to use masses placed along the intended travel path, creating Hyperspace Lanes. Unfortunately these masses would themselves have to be moving faster than the speed of light, so you'd need an Alcubierre drive to make an Alcubierre drive.
- The 2010 Florida race for US Senate that eventually saw Marco Rubio was this for third-party candidate Alexander Snitker. He was excluded from debates because he didn't have enough support in the polls, he didn't have enough support in the polls because pollsters wouldn't place his name on them, and they wouldn't place his name on them because his profile wasn't high enough, something he could change by, say, participating in debates. In fact, the two party system in general throws independent candidates into a Catch 22.
- Even within the main parties this can be observed. Some candidates in major primaries get no media coverage because they have no chance to win, but they have no chance to win because they have no media coverage. In extreme cases this can include the candidates the polls say are frontrunners.
- Some banks require you to have a credit score in order to take out a loan or get a credit card. In order to get a credit score, you have to pay back money owed due to loans or credit.
- Having a bad credit score can keep one from getting a job, but getting a job is the best way to improve a credit score.
- As mentioned on the Idiot Programming page, the music composition software Finale PrintMusic has a pretty big flaw with their user registration system on their forums. If your account should happen to get locked due to inactivity (and only about 3 months of inactivity will qualify), then it is essentially impossible to get back into it, because you must contact a forum administrator to re-enable it, contact information is found in user profiles, and user profiles cannot be viewed unless you are logged into an account. You can't even make a new account (at least, without setting up an entirely new e-mail address) because the old information is still in the system and cannot be reused.