Tail Quote by Frank Herbert
““There was a man who sat each day looking out through a narrow vertical opening where a single board had been removed from a tall wooden fence. Each day a wild ass of the desert passed outside the fence and across the narrow opening—first the nose, then the head, the forelegs, the long brown back, the hindlegs, and lastly the tail. One day, the man leaped to his feet with the light of discovery in his eyes and he shouted for all who could hear him: “It is obvious! The nose causes the tail!””
About This Quote
Source Novel: Dune by Frank Herbert, 1965
A man watches a desert ass through a fence opening and mistakenly concludes the nose causes the tail, illustrating faulty causal reasoning.
In simple terms: Mistaking correlation for causation.
Key Takeaway
Question assumptions before drawing conclusions.
Themes
critical thinking
logic
observation
Mood
skeptical
inquisitive
Type
analytical
educational
When to use this quote
- science education
- data analysis
- everymaking
- teaching
- debate
Key Concepts
cognitive bias
causation fallacy
Questions to Reflect On
- What evidence would you need to prove the nose causes the tail?
- How can you test a causal claim?
A Different Perspective
Correlation does not imply causation; the observed sequence may be coincidental.
