Knowledge From Forgetting

This paper provides a novel argument for granting memory the status of a generative source of justification and knowledge. Memory can produce justified output beliefs and knowledge on the basis of unjustified input beliefs alone. The key to understanding how memory can generate justification and knowledge, memory generativism, is to bear in mind that memory frequently omits part of the stored information. The proposed argument depends on a broadly reliabilist approach to justification.     

Appearances,Rationality, and Justified Belief

One might think that its seeming to you that p makes you justified in believing that p. After all, when you have no defeating beliefs, it would be irrational to have it seem to you that p but not believe it. That view is plausible for perceptual justification, problematic in the case of memory, and clearly wrong for inferential justification. I propose a view of rationality and justified belief that deals happily with inference and memory. Appearances are to be evaluated as ‘sound’ or ‘unsound.’ Only a sound appearance can give rise to a justified belief, yet even an unsound appearance can ‘rationally require’ the subject to form the belief. Some of our intuitions mistake that rational requirement for the belief’s being justified. The resulting picture makes it plausible that there are also unsound perceptual appearances. I suggest that to have a sound perceptually basic appearance that p, one must see that p.     

The Problem of Memory Knowledge

When one recalls that P, how is one justified in believing that P? I refute the three most natural answers to this question: a memory belief is not justified by a belief in the reliability of memory; a memory experience does not provide a new, foundational justification for a belief; and memory does not merely preserve the same justification a belief had when first adopted. Instead, the justification of a memory belief is a product of both the initial justification for adopting it and the justification for retaining it provided by seeming memories.     

Believing on trust

The aim of the paper is to propose a way in which believing on trust can ground doxastic justification and knowledge. My focus will be the notion of trust that plays the role depicted by such cases as concerned Hardwig (J Philos 82:335–49, 1985; J Philos 88:693–708, 1991) in his early papers, papers that are often referenced in recent debates in social epistemology. My primary aim is not exegetical, but since it sometimes not so clear what Hardwig’s claims are, I offer some remarks of interpretation that might be of interest. The main purpose of the paper, however, is this: following various cues in Hardwig’s writing, I specify certain epistemic properties of agents in social systems, such that, roughly speaking, for agents to know (or be justified in believing) what the ‘system knows’, social relations of epistemic trust between agents in the system are necessary. I will suggest that we can view this social form of epistemic trust as non-inferential dispositions to believe what some individual or other source of information asserts or transmits. When this disposition is discriminating and defeater-sensitive, it can ground knowledge and justification. Or, more cautiously, we should be sympathetic to this view if we are inclined to accept the core insight of process reliabilism. Finally, I will offer some remarks about how epistemic trust and epistemic reasons may relate on this picture.     

Justification and Cognitive Algorithms

In this paper, we offer an alternative interpretation for the claim that ‘S is justified in believing that φ’. First, we present what seems to be a common way of interpreting this claim: as an attribution of propositional justification. According to this interpretation, being justified is just a matter of having confirming evidence. We present a type of case that does not fit well with the standard concept, where considerations about cognition are made relevant. The concept of cognitive algorithm is presented and explained. Finally, the new reading of ‘S is justified in believing that φ’ is fleshed out. According to this interpretation, being justified in believing that φ is not just a matter of having evidence in favor of φ, but also of having a cognitive algorithm available such that it allows one to form belief in φ on the basis of the relevant evidence.     

Justification,sociality, and autonomy

Theories of epistemically justified belief have long assumed individualism. In its extreme, or Lockean, form individualism rules out justified belief on testimony by insisting that a subject is justified in believing a proposition only if he or she possesses first-hand justification for it. The skeptical consequences of extreme individualism have led many to adopt a milder version, attributable to Hume, on which a subject is justified in believing a proposition only if he or she is justified in believing that there is testimony in favor of the proposition deriving from a reliable source. I argue that this Humean individualism also leads to skepticism in a wide range of cases; it makes it impossible for a layperson to be justified on expert testimony. In addition, I argue that the apparent motivation for the Humean view, an insistence on intellectual autonomy in justification, does not succeed in motivating it. I then explore the contours of a collectivist view of justification on testimony, with special attention to the place of a subject's intellectual autonomy in such justification. I try to bring empirical results of the psychology of persuasion to bear on the epistemological issues.     

Transmission Failure Failure

I set out the standard view about alleged examples of failure of transmission of warrant, respond to two cases for the view, and argue that the view is false. The first argument for the view neglects the distinction between believing a proposition on the basis of a justification and merely having a justification to believe a proposition. The second argument for the view neglects the position that one 9s justification for believing a conclusion can be one 9s premise for the conclusion, rather than simply one 9s justification for the premise. Finally, the view is false since it is inconsistent with the closure of knowledge as closure is properly understood.     

Coin trials

According to the JUSTIFIED FAIR COINS principle, if I know that a coin is fair, and I lack justification for believing that it won’t be flipped, then I lack justification for believing that it won’t land tails. What this principle says, in effect, is that the only way to have justification for believing that a fair coin won’t land tails, is by having justification for believing that it won’t be flipped at all. Although this seems a plausible and innocuous principle, in a recent paper Dorr, Goodman and Hawthorne use it in devising an intriguing puzzle which places all justified beliefs about the future in jeopardy. They point out, further, that one very widespread theory of justification predicts that JUSTIFIED FAIR COINS is false, giving us additional reason to reject it. In this paper, I will attempt to turn this dialectic around. I will argue that JUSTIFIED FAIR COINS does not inevitably lead to scepticism about the future, and the fact that it is incompatible with a widespread theory of justification may give us reason to doubt the theory. I will outline an alternative theory of justification that predicts both that JUSTIFIED FAIR COINS is true and that we have justification for believing much about the future.     

Rationality, Justification, and the Internalism/Externalism Debate

In this paper, I argue that what underlies internalism about justification is a rationalist conception of justification, not a deontological conception of justification, and I argue for the plausibility of this rationalist conception of justification. The rationalist conception of justification is the view that a justified belief is a belief that is held in a rational way; since we exercise our rationality through conscious deliberation, the rationalist conception holds that a belief is justified iff a relevant possible instance of conscious deliberation would endorse the belief. The importance of conscious deliberation stems from its role in guiding us in acquiring true beliefs: whereas the externalist holds that if we wish to acquire true beliefs, we have to begin by assuming that some of our usual methods of belief formation generally provide us with true beliefs, the internalist holds that if we form beliefs by conscious deliberation, we can be conscious of reasons for thinking that our beliefs are true. Conscious deliberation can make us conscious of reasons because it proceeds via rational intuitions. I argue that despite the fallibility of rational intuition, rational intuitions do enable us to become conscious of reasons for belief.

MEMORY FOUNDATIONALISM AND THE PROBLEM OF UNFORGOTTEN CARELESSNESS

Abstract: According to memory foundationalism, seeming to remember that P is prima facie justification for believing that P. There is a common objection to this theory: If I previously believed that P carelessly (i.e. without justification) and later seem to remember that P, then (according to memory foundationalism) I have somehow acquired justification for a previously unjustified belief. In this paper, I explore this objection. I begin by distinguishing between two versions of it: One where I seem to remember that P while also seeming to remember being careless in my original believing that P and the other where I seem to remember that P while not seeming to remember my past carelessness. I argue that the former case is the real challenge for memory foundationalism. After establishing the case of unforgotten carelessness as objection to memory foundationalism, I recast memory foundationalism in way that allows it to escape this objection.     

Inferential Internalism and Reflective Defeat

Inferential Internalists accept the Principle of Inferential Justification (PIJ), according to which one has justification for believing P on the basis of E only if one has justification for believing that E makes probable P. Richard Fumerton has defended PIJ by appeal to examples, and recently Adam Leite has argued that this principle is supported by considerations regarding the nature of responsible belief. In this paper, I defend a form of externalism against both arguments. This form of externalism recognizes what I call the phenomenon of reflective defeat: if one is justified in not believing that E makes probable P, then this defeats whatever justification one has for believing P upon the basis of E. I argue that this modified version of externalism has the virtue of accommodating the intuitions that motivate internalism, without the cost of the vicious regress that makes internalism so unattractive.     

Knowledge attribution revisited: a deflationary account

According to the usual way of understanding how true knowledge attribution works, it is not right to attribute knowledge of p to S unless p is true and S is justified in believing p. This assumption seems to hold even if we shun away from the idea that we can give an analysis of knowledge in terms of necessary and sufficient conditions. I want to raise some suspicions on the correctness of this traditional picture. I suggest that justification is not always perceived as a necessary condition for true knowledge attribution, according to our pre-theoretical usage of standard epistemic terms. This is not to say that justification is never seen as an important requirement; sometimes it certainly is. Still, the full-fledged, traditional position on epistemic justification needs to be seriously qualified. Ultimately, I will contend that this result lends support to a rival epistemological standpoint — what we might dub a Moderate Peircean stance on epistemic matters.     

The Composite Nature of Epistemic Justification

According to many, to have epistemic justification to believe P is just for it to be epistemically permissible to believe P. Others think it is for believing P to be epistemically good. Yet others think it has to do with being epistemically blameless in believing P. All such views of justification encounter problems. Here, a new view of justification is proposed according to which justification is a kind of composite normative status. The result is a view of justification that offers hope of solving some longstanding epistemological problems.     

Rational self-doubt and the failure of closure

Closure for justification is the claim that thinkers are justified in believing the logical consequences of their justified beliefs, at least when those consequences are competently deduced. Many have found this principle to be very plausible. Even more attractive is the special case of Closure known as Single-Premise Closure. In this paper, I present a challenge to Single-Premise Closure. The challenge is based on the phenomenon of rational self-doubt—it can be rational to be less than fully confident in one’s beliefs and patterns of reasoning. In rough outline, the argument is as follows: Consider a thinker who deduces a conclusion from a justified initial premise via an incredibly long sequence of simple competent deductions. Surely, such a thinker should suspect that he has made a mistake somewhere. And surely, given this, he should not believe the conclusion of the deduction even though he has a justified belief in the initial premise.     

What's Wrong With Methodism?

I distinguish between two theses, DPJ and DGP. DPJ asserts that one's justification for accepting particular epistemic propositions positively depends on one's being justified in believing general epistemic principles. DGP claims that one's justification in believing general epistemic propositions positively depends on one's being justified in believing particular epistemic propositions. I claim that methodism accepts DPJ and rejects DGP and particularism accepts DGP and rejects DPJ. I argue that we should reject DGP and methodism roughly because these views imply that many of us do not know epistemic propositions that we do know. This point is made by Roderick Chisholm in The Problem of the Criterion and challenged by Robert Amico. I consider Chisholm's arguments and Amico's objections. Finally, I argue that even if we reject DPJ and methodism, we need not embrace particularism, since we could reject both DPJ and DGP.     

Self‐supporting Arguments*

Deductive and inductive logic confront this skeptical challenge: we can justify any logical principle only by means of an argument but we can acquire justification by means of an argument only if we are already justified in believing some logical principle. We could solve this problem if probative arguments do not require justified belief in their corresponding conditionals. For if not, then inferential justification would not require justified belief in any logical principle. So even arguments whose corresponding conditionals are epistemically dependent upon their conclusions—epistemically self‐supporting arguments—need not be viciously circular. R.B. Braithwaite and James Van Cleve use internalist and externalist versions of this strategy in their proposed solutions to the problem of induction. Unfortunately, their arguments for self‐support are unsound and any theory of inferential justification that does not require justified belief in the corresponding conditionals of justification‐affording arguments is unacceptably arbitrary. So self‐supporting arguments cannot be justification‐creating.     

Valuing Knowledge: A Deontological Approach

The fact that we ought to prefer what is comparatively more likely to be good, I argue, does, contrary to consequentialism, not rest on any evaluative facts. It is, in this sense, a deontological requirement. As such it is the basis of our valuing those things which are in accordance with it. We value acting (and believing) well, i.e. we value acting (and believing) as we ought to act (and to believe). In this way, despite the fact that our interest in justification depends on our interest in truth, we value believing with justification on non-instrumental grounds. A deontological understanding of justification, thus, solves the Value of Knowledge Problem.

Memory as a Generative Epistemic Source

It is widely assumed that memory has only the capacity to preserve epistemic features that have been generated by other sources. Specifically, if S knows (justifiedly believes/rationally believes) that p via memory at T2, then it is argued that (i) S must have known (justifiedly believed/rationally believed) that p when it was originally acquired at T1, and (ii) S must have acquired knowledge that p (justification with respect to p/rationality with respect to p) at T1 via a non-memorial source. Thus, according to this view, memory cannot make an unknown proposition known, an unjustified belief justified, or an irrational belief rational–it can only preserve what is already known, justified, or rational. In this paper, I argue that condition (i) is false and, a fortiori , that condition (ii) is false. Hence, I show that, contrary to received wisdom in contemporary epistemology, memory can function as a generative epistemic source.     

A PARADOX OF JUSTIFIED BELIEVING

The following principles may plausibly be included in a wide range of theories of epistemic justification:

• (1) 

  There are circumstances in which an agent is justified in believing a falsehood,
• (2) 

  There are circumstances in which an agent is justified in believing a principle of epistemic justification,
• (3) 

  Beliefs acquired in compliance with a justifiably-believed epistemic principle are justified.

I argue that it follows from these three individually plausible claims that an agent's belief may be both justified and unjustified. I consider how theories may avoid this paradox, and conclude that deontological theories of epistemic justification face considerable, perhaps insurmountable, difficulties.