Duchess stares in horror at a vision of her extreme health fanatic future self illustrating the Slippery Slope fallacy

Duchess realises she is slowly killing herself - the Slippery Slope fallacy

It's time for radical action. Everything is about to change.

A bloated Duchess the cat eats ice cream beside an empty pizza box and declares "This toxic lifestyle is killing me — it's time for my vegetarian phase," setting up a classic Slippery Slope fallacy
Bruno the beagle laughs and warns "Don't make me laugh — first you'll cut out meat, then one day you'll be sipping kale juice out of a watermelon!" — a textbook Slippery Slope fallacy argument in action
A horrified Duchess stares at a vision of herself on the cover of Top 10 Fittest Cats, surrounded by cats holding Spinach Lover Club and Work Out 25 Hours signs — the exaggerated endpoint of Bruno's Slippery Slope prediction
A fierce Duchess in workout gear strides past No Carbs No Meat signs and a crowd of Veggies for Life protesters — the extreme conclusion Bruno's Slippery Slope fallacy uses to scare her away from any change at all

Never mind! Bruno made it seem like a dystopian nightmare and now Duchess is too afraid to change.

Throw out your kale salad and indulge with our Slippery Slope Activity Pack!

The Slippery Slope in a Nutshell

The Slippery Slope fallacy takes one small, reasonable step and turns it into an unstoppable march toward catastrophe - conveniently skipping over everything in between.

Duchess wants to go vegetarian. Bruno's response? That's just the beginning. First the meat goes, then the carbs, and before you know it you're sipping kale juice out of a watermelon. None of those steps are demonstrated. The whole chain is invented. And that invented chain - presented as inevitable - is the fallacy.

Spotting it is simple. Ask one question: Does the first step actually prove the last one? If the answer is no, someone's doing a Slippery Slope on you.

See all 24 fallacies in What Are the Most Common Logical Fallacies?

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