Blog/Logical Fallacy
February 8, 2026

Slippery Slope Fallacy

Spot the Fallacy Team

Team Content

A slippery slope claims a small step will inevitably lead to extreme outcomes without evidence.

A slippery slope claims a small step will inevitably lead to extreme outcomes without evidence.

Why it is a fallacy

A claim needs evidence that connects the reasons to the conclusion. This fallacy skips that connection or replaces it with a shortcut.

Examples

  • If we allow one late assignment, students will never meet deadlines again.
  • If we regulate this product, freedom will vanish.
  • If we allow remote work, nobody will work and the company will fail.

How to respond

  • Ask for the mechanism that links each step.
  • Request evidence for the probability of the chain.
  • Consider whether safeguards can prevent escalation.

Related fallacies

FAQ

Is slippery slope always wrong?
No. It is fallacious when the chain is asserted without evidence.

How do I evaluate a slippery slope claim?
Ask for evidence and probability at each step.

References

  • Stanford Encyclopedia of Philosophy (Fallacies)
  • Internet Encyclopedia of Philosophy (Logic and Critical Thinking)
  • Nizkor Project (Fallacies)