Identifying Logical Fallacies in Alternative Narratives

How does “moving the goalposts” manifest in alternative narratives?

This fallacy occurs when someone continuously changes the criteria for accepting evidence. For example, when a claimed piece of evidence is debunked, the doubter shifts to demand different proof, never defining what would actually satisfy them. It’s a tactic to avoid ever conceding a point. Recognizing this pattern is crucial—it signals a closed narrative, not an open investigation.

How does “cherry-picking” data mislead people?

This fallacy involves selectively presenting only facts that support a position while ignoring a mountain of contrary evidence. It creates a distorted, seemingly plausible narrative. For example, citing a single flawed study while dismissing hundreds of robust ones. Critical thinking requires actively seeking out the full body of evidence, not just the pieces that fit a pre-existing puzzle.

What is the most common logical fallacy used to discredit mainstream sources, and how can I identify it?

The ad hominem fallacy is prevalent, where the source is attacked instead of the argument. A doubter might dismiss climate data by stating, “Those scientists are just paid by the government.“ To identify it, listen for personal insults, allegations of bias without evidence, or attempts to undermine credibility instead of engaging with the facts. Recognize this tactic to separate character assassination from substantive critique, allowing you to focus on the actual evidence and logic presented by any narrative, mainstream or alternative.

How does “post hoc ergo propter hoc” (after this, therefore because of this) fuel conspiracy theories?

This fallacy assumes that because Event B followed Event A, A must have caused B. It confuses correlation with causation. This is foundational to many conspiracy narratives, linking unrelated events into a sinister plot. Harnessing doubt means pausing to ask: “Is there a proven mechanism, or just sequence? What other explanations exist?“