On Legal Bullshit - Frankfurt's Distinction and the Self-Reporting Fallacy in Litigation

Abstract

Harry Frankfurt drew a distinction that the law has never formally used: a liar knows the truth and asserts its opposite, while a bullshitter is indifferent to the truth altogether, producing assertion calibrated to what will work rather than to what is so. The distinction matters because the two are almost impossible to tell apart from their output alone, and because the law's machinery for detecting deception - intent, knowledge, scienter - is built entirely for the first category and has essentially nothing to say about the second. A professional who files a claim their own evidence already contradicts may have lied. They may equally have never checked, because checking was not necessary to produce a filing that does its job. The document looks the same either way. This paper argues that civil litigation, professional liability, and the institutions that sit above both have organised themselves around exactly this blind spot, and names the structural reason it persists: the Self-Reporting Fallacy. The fallacy is this: every actor positioned to read a legal file has a stake in the answer it gives. A client depends on trusting their own lawyer's account - a client who does not trust it has already, in effect, dismissed their counsel. A lawyer who filed a document is committed to its coherence regardless of who created the gap inside it. An insurer receives a summary of the file, not the file. A court sees what each side chooses to argue, not what either side has chosen not to mention. None of this requires bad faith to operate; it requires only that each actor behave exactly as their position already rewards them for behaving. The result is a system that can prosecute the rare, provable lie but has no mechanism at all for the far more common case - the assertion nobody checked, made by someone with every reason not to check it, sitting undetected in a record that would have shown the gap to anyone reading without a stake in the outcome. This paper specifies what a reading position with no stake in the outcome would need to do differently, building on this author's prior work on the distance between an assigned professional's competence and a matter's actual demands, and on the economics of strategic silence under current legal defaults. It adds a third element, specified here for the first time: a test for whether a filing's own positive factual claims survive contact with its own attachments -- and with what the record conspicuously fails to address -- independent of whether the gap originated in incompetence or in design. Demonstrated against one recurring event -- the moment a professional's own filed evidence contradicts their own asserted position, converting a routine dispute into an independent professional-liability exposure that frequently dwarfs the underlying claim -- the combination shows what becomes visible only once Frankfurt's distinction is taken as seriously in litigation as it has been taken in moral philosophy for forty years: not who is lying, but who has stopped checking, and what that costs everyone still relying on them to have checked. This paper also situates the resulting method against the existing landscape of advocacy ethics, litigation analytics, and legal-AI document review, and argues that none of these literatures, individually mature as each is, was ever positioned to ask the question this paper asks. It closes by naming the category of instrument such a method makes possible, locating the professional-indemnity insurance industry as its natural first market, and offering, as existence proof rather than as its subject, a prototype instrument built by this author that demonstrates the method is achievable with present techniques.