Sealioning

In plain terms

Sealioning is harassment wearing the costume of curiosity. The sealion peppers a target with endless questions and demands for evidence, always politely, always "just trying to understand," until the target either gives up or loses their temper. Then the sealion points at the exhaustion or the temper as proof the target had no real argument.

The term comes from a 2014 webcomic in which a sea lion follows a couple home, into their bedroom, to the breakfast table, demanding they justify an offhand remark, all with impeccable manners.

Why it's fallacious

It isn't a logical fallacy in the strict sense. It's a manipulation of the social rules of debate. Politeness and a request for evidence are normally good-faith signals, so refusing to engage looks like bad faith on the target's part. The sealion exploits that. The civility is a shield; the volume and persistence are the weapon.

The dishonesty is in the intent. A real question seeks an answer. A sealion's questions seek your time and your composure. No answer is ever sufficient, because answering was never the point.

Canonical example

A (offhand, in a thread): "I find that columnist's takes pretty shallow."

B: "Genuinely curious, which take specifically? Can you cite it? What's your standard for 'shallow'? I'm just asking questions. Why are you reluctant to back up your claim? I'm being perfectly civil here."

A made a casual remark, not a formal thesis. B responds as though A is obligated to mount a full evidentiary defense, and frames every escalation as innocent inquiry. The civility is real. The good faith is not. If A stops replying, B will say A couldn't support the claim.

Counter-example (not sealioning)

"I think I disagree, but I might be missing something. What's the strongest piece of evidence for your view? I'll read it and come back."

This isn't sealioning, even though it's a request for evidence. The asker signals genuine openness, asks once, and commits to engaging with the answer. A single sincere question, or even a few, from someone willing to be moved is just conversation. Sealioning is defined by relentlessness and by the absence of any answer that would ever satisfy.

The line: is the person trying to reach an answer, or trying to wear you down?

How to fix it

If you've been linked here, the honest question to ask yourself is whether you actually want the answer or just want the other person to keep justifying themselves. The fix: ask your real question once, clearly, and then engage with the response instead of producing the next demand. If you find that no answer would satisfy you, you weren't asking a question, and the fair move is to state your actual disagreement directly.

If you're on the receiving end, you're not obligated to treat an interrogation as a debate. It's fine to say, once: "Happy to point you to a source; I'm not going to do a round-by-round defense of an offhand comment." Then disengage. Refusing to be exhausted is not the same as having no argument.