Western Skeptic vs Indian Realist. Cross-Cultural Differences in Zebra Case Intuitions

The cross-cultural differences in epistemic intuitions reported by Weinberg, Nichols and Stich (2001; hereafter: WNS) laid the ground for the negative program of experimental philosophy. However, most of WNS’s findings were not corroborated in further studies. The exception here is the study concerning purported differences between Westerners and Indians in knowledge ascriptions concerning the Zebra Case, which was never properly replicated. Our study replicates the above-mentioned experiment on a considerably larger sample of Westerners (n = 211) and Indians (n = 204). The analysis found a significant difference between the ethnic groups in question in the predicted direction: Indians were more likely to attribute knowledge in the Zebra Case than Westerners. In this paper, we offer an explanation of our result that takes into account the fact that replications of WNS’s other experiments did not find any cross-cultural differences. We argue that the Zebra Case is unique among the vignettes tested by WNS since it should not be regarded as a Gettier case but rather as a scenario exhibiting skeptical pressure concerning the reliability of sense-perception. We argue that skepticism towards perception as a means of gaining knowledge is a trope that is deeply rooted in Western epistemology but is very much absent from Classical Indian philosophical inquiry. This line of reasoning is based on a thorough examination of the skeptical scenarios discussed by philosophers of the Indian Nyaya tradition and their adversaries.

Gettier Cases: A Taxonomy

The term “Gettier Case” is a technical term frequently applied to a wide array of thought experiments in contemporary epistemology. What do these cases have in common? It is said that they all involve a justified true belief which, intuitively, is not knowledge, due to a form of luck called “Gettiering.” While this very broad characterization suffices for some purposes, it masks radical diversity. We argue that the extent of this diversity merits abandoning the notion of a “Gettier case” in a favour of more finely grained terminology. We propose such terminology, and use it to effectively sort the myriad Gettier cases from the theoretical literature in a way that charts deep fault lines in ordinary judgments about knowledge.

Knowledge Judgments in "Gettier" Cases

“Gettier cases” have played a major role in Anglo-American analytic epistemology over the past fifty years. Philosophers have grouped a bewildering array of examples under the heading “Gettier case.” Philosophers claim that these cases are obvious counterexamples to the “traditional” analysis of knowledge as justified true belief, and they treat correctly classifying the cases as a criterion for judging proposed theories of knowledge. Cognitive scientists recently began testing whether philosophers are right about these cases. It turns out that philosophers were partly right and partly wrong. Some “Gettier cases” are obvious examples of ignorance, but others are obvious examples of knowledge. It also turns out that much research in this area of philosophy is marred by experimenter bias, invented historical claims, dysfunctional categorization of examples, and mischaracterization by philosophers of their own intuitive judgments about particular cases. Despite these shortcomings, lessons learned from studying “Gettier cases” are leading to important insights about knowledge and knowledge attributions, which are central components of social cognition.

Gettier Was Framed!

Gettier cases describe situations where an agent possesses a justified true belief that p, without, at least according to mainstream analytic epistemology, knowing that p, while the “Gettier intuition” is the judgment that a protagonist in a Gettier case does not know the relevant proposition. Our goal in this chapter is to show that we can make the Gettier intuition compelling or underwhelming by presenting it in different contexts. We report a surprising order effect whereby people find the Gettier intuition less compelling when a case describing a justified but false belief is presented before a Gettier case. We also report a surprising framing effect: two Gettier cases that differ only in their philosophically irrelevant narrative details elicit substantially different judgments. Finally, we discuss the metaphilosophical implications of these effects.

Gettier Cases

The term ‘Gettier case’ is a technical term frequently applied to a wide array of thought experiments in contemporary epistemology. What do these cases have in common? It is said that they all involve a justified true belief which, intuitively, is not knowledge, due to a form of luck called ‘gettiering.’ While this very broad characterization suffices for some purposes, it masks radical diversity. We argue that the extent of this diversity merits abandoning the notion of a ‘Gettier case’ in favor of more finely grained terminology. We propose such terminology, and use it to effectively sort the myriad Gettier cases from the theoretical literature in a way that charts deep fault lines in ordinary judgments about knowledge.

The Gettier Case and Intuition

It is standard to describe philosophers as appealing to intuitions about cases as evidence for or against philosophical theories. However, the method of appealing to intuitions about cases has been widely criticized in recent philosophical debate. One central theme of this recent debate is that intuitions are ‘too psychological’ to provide evidence for the relevant philosophical theories which have a non-psychological subject matter (e.g. Deutsch, Kornblith, Williamson). I assess this criticism by focusing on philosophers’ use of the Gettier case to reject the Justified True Belief theory of knowledge. In more detail, I distinguish several senses in which it has been claimed that intuitions are ‘too psychological’, and argue that none of them support this common criticism of using intuitions as evidence in philosophy.

THERE IS NO KNOWLEDGE FROM FALSEHOOD

A growing number of authors defend putative examples of knowledge from falsehood (KFF), inferential knowledge based in a critical or essential way on false premises, and they argue that KFF has important implications for many areas of epistemology (whether evidence can be false, the Gettier debate, defeasibility theories of knowledge, etc.). I argue, however, that there is no KFF, because in any supposed example either the falsehood does not contribute to the knowledge or the subject lacks knowledge. In particular, I show that if the subject actually has knowledge in putative KFF cases, then there is always a veridical evidential path meeting the basing conditions that accounts for her knowledge; if there is no such path, then the subject is in a type of Gettier case. All the recent arguments that rely on KFF are therefore based on a mistake.

IS KNOWLEDGE THE ABILITY TO ϕ FOR THE REASON THAT P?

Hyman (1999, 2006) argues that knowledge is best conceived as a kind of ability: S knows that p iff S can ϕ for the reason that p. Hyman motivates this thesis by appealing to Gettier cases. I argue that it is counterexampled by a certain kind of Gettier case where the fact that p is a cause of the subject's belief that p. One can ϕ for the reason that p even if one does not know that p. So knowledge is not best conceived as an ability of this kind.

GETTIERIZED KNOBE EFFECTS

We report experimental results showing that participants are more likely to attribute knowledge in familiar Gettier cases when the would-be knowers are performing actions that are negative in some way (e.g. harmful, blameworthy, norm-violating) than when they are performing positive or neutral actions. Our experiments bring together important elements from the Gettier case literature in epistemology and the Knobe effect literature in experimental philosophy and reveal new insights into folk patterns of knowledge attribution.

Philosophical Intuitions

What exactly is a philosophical intuition? And what makes such an intuition reliable, when it is reliable? This paper provides a terminological framework that is able answer to the first question, and then puts the framework to work developing an answer to the second question. More specifically, the paper argues that we can distinguish between two different "evidential roles" which intuitions can occupy: under certain conditions they can provide information about the representational structure of an intuitor's concept, and under different conditions, they can provide information about whether or not a property is instantiated. The paper describes two principles intended to capture the difference between the two sets of conditions---that is, the paper offers a principle that explains when an intuition will be a reliable source of evidence about the representation structure of an intuitor's concept, and another principle that explains when an intuition will be a reliable source of evidence about whether or not a property is instantiated. The paper concludes by briefly arguing that, insofar as philosophers are interested using intuitions to determine whether or not some philosophically interesting property is instantiated by some scenario (for instance, whether knowledge is instantiated in a Gettier-case), the reliability of the intuition in question does not depend on whether or not the intuition is widely shared.