What is it?

This fallacy argues that if we allow one thing to happen, it will inevitably lead to a series of other, more extreme events. It exaggerates the consequences of a single action.

Examples

How to Avoid This

When arguing about the consequences of an action, provide evidence for the causal links between the steps. Don't assume that one thing will inevitably lead to another without a clear and logical reason.

How to Counter This

Question the inevitability of the chain of events. 'Is there any evidence to suggest that A will necessarily lead to B?' Point out that the predicted extreme outcome is unlikely.