In this paper, I argue that ad hominem arguments are not always fallacious. More explicitly, in certain cases of practical reasoning, the circumstances of a person are relevant to whether or not the conclusion should be accepted. This occurs, I suggest, when a person gives advice to others or prescribes certain courses of action but fails to follow her own advice or act in accordance with her own prescriptions. This is not an instance of a fallacious tu quoque provided that (...) such circumstantial ad hominem arguments are construed as rebuttals to appeals (administrative) authority (of expertise), or so I argue. (shrink)

(English:) The article introduces conspiracy beliefs and considers the most relevant literature in the field. The main purpose of the article is phenomenological: it proposes to understand conspiracy beliefs within the broader genre of what I call general conceptual beliefs (or simply, general beliefs), whose central features are big issues, logical-conceptual fallacies, pseudorationality, bad faith, and monological bias. I claim that general beliefs are functional to a motivationally biased and inherently dishonest communication (the same one that conspiracy narratives share with (...) political extremism, religious fundamenta-lism and other eccentric belief systems), which is essentially conceived for practical and self-representational purposes (not for knowledge). The article argues against the mere stigmatization of this phenomenon and rather seeks to understand it by looking at a broader and murkier region of human experience, for which we are all responsible in some way. -/- (Castellano:) El artículo introduce al análisis de las creencias conspirativas y considera la literatura más relevante sobre el tema. El objetivo del escrito es fenomenológico: entender las creencias conspirativas colocándolas en un género más amplio, las creencias conceptuales generales (o, simple-mente, creencias generales), cuyas carac-terísticas esenciales son: grandes temas, falacias lógico-conceptuales, pseudoracionalidad, mala fe y tendencia monológi-ca. Las creencias generales son funcionales a una comunicación sesgada y tendencialmente deshonesta, la misma que las his-torias conspirativas comparten con ex-tremismos políticos, fundamentalismos religiosos y otros sistemas de creencias excéntricos, cuya finalidad es eminentemente práctica y autorepresentativa (no teorética). El artículo se opone a la mera estigmatización del fenómeno y trata más bien de comprenderlo, observando una región más amplia y turbia de la experiencia humana, de la que todos somos responsables de alguna manera. (shrink)

In this paper we show that an essential aspect of solving the problem of uncritical acceptance of expert opinions that is at the root of the ad verecundiam fallacy is the need to disentangle argument from expert opinion from another kind of appeal to authority. Formal and computational argumentation systems enable us to analyze the fault in which an error has occurred by virtue of a failure to meet one or more of the requirements of the argumentation scheme from argument (...) from expert opinion. We present a method for enhancing this capability by showing how arguments from expert opinion are related to, but different from, arguments from deontic authority. (shrink)

In this paper I propose to continue the analysis of the appeal to authority begun at the last OSSA conference. I proceed by examining the well-documented use of the appeal made by the ancient Roman advocate, Cicero. The fact that Cicero expressed his opinion was expectably sufficient to give his auditors--responsible citizens all--reason to do as he desired. But why? The resolution of this puzzle points to a strong sense in which arguments can be called rhetorical , for the rational (...) force of Cicero's authority depends necessarily on what he says. (shrink)