Some arguments SEEM convincing but are actually broken. Can you spot the errors that make bad arguments look good?

AD HOMINEM ("to the person"): attacking the person making the argument instead of the argument itself. "You're young" says nothing about whether the argument is RIGHT. Even if the speaker's age influences WHY they believe it, that doesn't address whether it's TRUE. Attack arguments, not people.

Other RELEVANCE fallacies: APPEAL TO AUTHORITY—"Expert says so" (but are they qualified on THIS?); APPEAL TO POPULARITY—"Everyone believes it" (popularity ≠ truth); RED HERRING—changing the subject to avoid the real issue. In each, the "evidence" doesn't actually support the claim.

PRESUMPTION fallacies: FALSE DILEMMA—"Either X or Y" (maybe Z?); SLIPPERY SLOPE—"If A, then eventually Z!" (will it really slide?); BEGGING THE QUESTION—assuming what you're trying to prove. AMBIGUITY fallacies: STRAW MAN—misrepresenting arguments to attack them; EQUIVOCATION—using words in different senses.

Using fallacy knowledge well: (1) EXPLAIN why it's wrong, don't just name it; (2) Apply to YOUR OWN reasoning first; (3) Don't FALLACY HUNT—understand the errors; (4) Fallacious argument for X doesn't mean X is false—just that THIS argument fails. Focus on understanding why reasoning fails.

Age MAY affect perspective, but that doesn't address whether the argument is RIGHT. "Why you believe X" is different from "whether X is true." This is AD HOMINEM—attacking the person (their youth) instead of their argument. Even if the explanation is true, it doesn't refute the claim.

This is related to the GENETIC FALLACY: judging an idea by its origin rather than its merits. "You only believe that because you're young/old/liberal/conservative" explains the belief's origin but doesn't address whether it's TRUE. Ideas should be evaluated on their merits, not their sources.

VALID response: "I disagree because [addresses the actual argument]." INVALID response: "You only say that because you're young!" The first engages with the argument. The second avoids it entirely by focusing on the speaker. Sometimes age provides relevant experience—but that should lead to COUNTER-ARGUMENTS, not dismissal.

Recognizing ad hominem helps you: (1) Notice when YOU'RE being dismissed unfairly; (2) Notice when YOU dismiss others unfairly; (3) Keep discussions focused on arguments, not people. The goal isn't to win by naming fallacies—it's to engage with actual reasoning rather than personal attacks.

A STRAW MAN is misrepresenting someone's argument to make it easier to attack. "You're only saying that because you're young" doesn't misrepresent—it attacks the PERSON, not a distorted version of their argument. This is AD HOMINEM (to the person), not straw man.

AD HOMINEM: attacking the person instead of their argument. "You're young" says nothing about whether the argument is RIGHT. Even if age influences perspective, that doesn't address truth. Attack arguments, not people. Both young and old can be right or wrong.

STRAW MAN example: "We should reduce sugar in school lunches." Straw man response: "So you want to starve children!" The second distorts the first—makes it easier to attack but isn't what was said. That's straw man. "You only say that because you're a health nut" would be ad hominem.

Knowing WHICH fallacy helps you explain WHY an argument fails. Ad hominem: "You're attacking me, not my argument." Straw man: "That's not what I said." Different problems need different responses. But don't fallacy-hunt—the goal is understanding reasoning errors, not collecting names.