Ever watched a movie or read a book where something just felt off—like a character made a weird decision, or a twist didn’t make sense?
Chances are, the story had a logic flaw.
And yes, logical fallacies in your story can ruin the reader’s immersion, even if your prose is beautiful or your plot sounds exciting on paper.
What Is a Logical Flaw in Storytelling?
A logical flaw (or fallacy) happens when events, character choices, or world-building details don’t add up.
Examples include:
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Characters acting out of character just to move the plot forward
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Unrealistic coincidences that magically solve major problems
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Plot holes that leave readers asking, “Wait, how did that happen?”
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Forced conflicts that could’ve been solved by one honest conversation
Why Logical Consistency Matters
Fiction is allowed to be imaginative—but it still needs internal logic. Once you break your story’s own rules, you break the trust of your audience.
Readers might not notice perfect grammar, but they’ll definitely notice when something doesn’t make sense.
Common Story Logic Mistakes
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Convenient Coincidences
The hero “just happens” to find the exact key they need? Too easy. -
Out-of-Character Behavior
Your quiet, cautious character suddenly becomes a fearless fighter? Why? -
Overpowered Solutions
The character gains a random power just in time to win? That’s lazy writing. -
Ignoring Consequences
A big event happens… but nobody reacts? The world feels empty.
How to Avoid Logic Gaps in Your Story
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Know Your Characters Deeply
Understand their fears, desires, and limits. Make sure their actions are rooted in who they are. -
Build Consistent Rules for Your World
Whether it’s a fantasy universe or a real-world drama, your story needs consistent boundaries. -
Play Devil’s Advocate
Ask yourself: “Would this really happen?” or “What’s the weakest link here?” -
Get Feedback from Critical Readers
Sometimes you're too close to your story to notice the holes. Let others poke at it. -
Track Cause and Effect
Every action should have a consequence. If it doesn’t, readers won’t feel the stakes.
Final Thoughts
A story doesn’t have to be perfect. But it does need to be believable—within its own world.
Don’t let lazy logic turn a great idea into a forgettable mess.
Writing a good story isn’t just about what happens—
It’s about making readers believe that it could happen.