Arbitrary Burden of Proof

The meta-fallacy where one side is forced to prove every assertion, back every claim, and satisfy every demand for evidence, while the other side can simply move goalposts, demand new sources, dismiss evidence as insufficient, and never provide anything themselves. The arbitrary burden of proof is the debate equivalent of one person carrying a piano while the other skips ahead, occasionally turning around to complain that the piano-carrier isn't keeping up. It's how conspiracy theorists can demand that scientists prove negatives (prove that vaccines don't cause autism, prove that the moon landing wasn't fake), while offering no proof for their own claims and dismissing any evidence against them as part of the conspiracy.

Example: "She was trapped under an arbitrary burden of proof. Every time she provided a source, he moved the sourcepost. Every time she met his standard, he raised it. After two hours, she'd provided twenty sources, and he'd provided zero. When she asked what he believed, he said 'I'm just asking questions.' The questions were infinite, the answers were never enough, and the burden was hers alone."

Arbitrary Burden of Proof by Dumu The Void February 15, 2026