Master Logical Fallacies & Cognitive Biases

Understanding these patterns helps you think more clearly, argue more effectively, and resist manipulation. Each card shows your personal stats if you've encountered that fallacy in Dojo.

Showing 31 of 31 fallacies
🎯

Attacking the person, not the argument

Ad Hominem

Dismissing an argument by attacking the person making it rather than addressing the logic

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🪞

You do it too!

Tu Quoque

Deflecting criticism by pointing out the accuser does the same thing

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⛷️

One small step leads to disaster

Slippery Slope

Assuming one action will inevitably lead to extreme consequences

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⏰

B happened after A, so A caused B

Post Hoc Ergo Propter Hoc

Assuming causation just because one event followed another

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🎪

Misrepresenting the argument

Strawman

Attacking a distorted version of the argument instead of the real one

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🐟

Changing the subject

Red Herring

Diverting attention to an irrelevant topic

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⚖️

Only two options exist

False Dilemma

Presenting only two choices when more exist

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🦘

Jumping to conclusions

Hasty Generalization

Drawing broad conclusions from limited evidence

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🍒

Selecting only favorable evidence

Cherry Picking

Highlighting evidence that supports your view while ignoring contradicting evidence

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🎯

Finding patterns in randomness

Texas Sharpshooter

Clustering data to fit a pattern after the fact

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👔

An expert said so

Appeal to Authority

Assuming something is true because an authority figure said it

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🚌

Everyone else believes it

Bandwagon

Assuming something is true because many people believe it

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🏴󠁧󠁢󠁳󠁣󠁴󠁿

Redefining to exclude counterexamples

No True Scotsman

Changing the definition to exclude examples that contradict your claim

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🔄

Using the conclusion as evidence

Circular Reasoning

The conclusion is assumed in the premise

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❓

Assuming what you're trying to prove

Begging the Question

The argument assumes the very thing it claims to prove

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😢

Manipulating feelings instead of logic

Appeal to Emotion

Using emotional manipulation instead of valid reasoning

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😱

Using scare tactics

Appeal to Fear

Arguing something is true by instilling fear

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🔍

Prove me wrong!

Burden of Proof

Claiming something is true until proven false

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🧬

It's bad because of where it came from

Genetic Fallacy

Judging something based on its origin rather than its merit

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🔍

Only seeing what confirms your belief

Confirmation Bias

Seeking out information that confirms existing beliefs while ignoring contradicting evidence

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🤡

Overconfident despite lack of skill

Dunning-Kruger Effect

Unskilled people overestimating their competence

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💸

Can't quit because I've invested so much

Sunk Cost Fallacy

Continuing something because of past investment rather than future value

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📺

If I remember it easily, it must be common

Availability Heuristic

Overestimating likelihood based on how easily examples come to mind

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⚓

Stuck on the first number I heard

Anchoring Bias

Over-relying on the first piece of information encountered

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😇

Good at one thing = good at everything

Halo Effect

Assuming someone good in one area is good in all areas

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🔮

I knew it all along

Hindsight Bias

Believing past events were more predictable than they actually were

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🎯

Only looking at the survivors

Survivorship Bias

Focusing on successes while ignoring failures that didn't make it

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👉

Their fault, not the situation

Fundamental Attribution Error

Blaming others' character while excusing own behavior as situational

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📊

Only remember the peak and the end

Peak-End Rule

Judging experiences based on peak moments and endings, not the average

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😞

Bad stuff weighs more than good stuff

Negativity Bias

Giving more weight to negative experiences than positive ones

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⏰

Recent events matter most

Recency Bias

Giving more importance to recent events than earlier ones

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