Red Herring

In plain terms

A red herring is a distraction. Someone makes an argument, and the response pulls attention toward a different topic that sounds related but doesn't bear on the original point. By the time everyone has chased the new thread, the first one has been quietly abandoned.

The name comes from the alleged practice of using smoked fish to throw hunting dogs off a trail. Whether or not that's true historically, the metaphor holds: the new scent is strong, and it leads away from where the argument was going.

Why it's fallacious

A valid argument has to engage with the point actually being made. Swapping in a different point, no matter how interesting, doesn't refute the first one. If a question about bridge repair gets answered with a speech about the city's crime rate, the bridge question is still unresolved and the crime speech hasn't contradicted anything.

The move is effective because audiences often follow the thread that is more emotionally charged. Red herrings tend to be chosen for their capacity to grab attention, not for their relevance.

Canonical example

A: "The budget proposal cuts after-school programs by 30%. Kids who use those programs have measurably better outcomes."

B: "Speaking of kids, have you seen what's happening in schools with cell phones? Teachers are losing control of classrooms."

The cell phone problem may be real. It has nothing to do with the 30% budget cut. B has changed the subject and left the after-school cut untouched, while sounding, from the pacing alone, like a direct reply.

Counter-example (not a fallacy)

A: "We should redirect these funds from transit to road repairs."

B: "Before we decide that, we should look at how transit ridership affects road wear. If fewer buses means more cars, the road repair costs could go up faster than the savings from cutting transit."

This isn't a red herring. B is introducing a new topic, yes, but the new topic directly bears on whether A's recommendation achieves A's own goal. It's a relevant complication, not a distraction. Red herrings change the subject. Relevant complications keep the subject and deepen it.

How to respond when you see it

Restate the original question, unchanged, and ask for an answer to it. "That's a separate issue. The question was [X]. What's your view on [X]?" A real response to a relevant point should be able to return, briefly, to the original. If it can't, the pivot was the whole move.