Online research in philosophy

According to Williamson, your evidence consists of all and only what you know (E = K). According to his critics, it doesn’t. While E = K calls for revision, the revisions it calls for are minor. E = K gets this much right. Only true propositions can constitute evidence and anything you know non-inferentially is part of your evidence. In this paper, I defend these two theses about evidence and its possession from Williamson’s critics who think we should break more radically from E = K.

This paper looks at Timothy Williamson’s formulation of the thesis of Evidence Neutrality (EN). I motivate and argue for an upgraded version of EN by showing that changing one’s assumption about the nature of evidence (i.e. fallibility vs. factivity) generates a different verdict on EN. Then, I show how Williamson’s interpretation of EN is incomplete in light of a principle that guides his complete understanding of the nature of evidence. I reformulate EN to overcome deficiencies in Williamson’s interpretation of EN, and, lastly, I use cases from philosophy and science to show that reformulated‐EN promotes better practices in both domains while, at the same time, it avoids psychologizing evidence.

Timothy Williamson has proposed that we should give a ‘knowledge first’ twist to David Lewis’s account of content, maintaining that for P to be the content of one’s belief is for P to be the content that would be attributed by an idealized interpreter working under certain constraints, and that the fundamental constraint on interpretation is a principle of knowledge maximization. According to this principle, an interpretation is correct to the extent that it maximizes the number of knowledgeable judgments the subject comes out as making. Here I will argue against knowledge maximization and two fallback positions suggested by Williamson’s discussion. Williamson intends the principle of knowledge maximization to form the basis of an argument against a certain sort of skepticism about judgment. In the final section I argue that the kind of general response to judgment skepticism envisaged by Williamson is neither desirable nor necessary.

Timothy Williamson's epistemology leads to a fairly radical version of scepticism. According to him, all knowledge is evidence. It follows that if S knows p, the evidential probability for S that p is 1. I explain Williamson's infallibilist account of perceptual knowledge, contrasting it with Peter Klein's, and argue that Klein's account leads to a certain problem which Williamson's can avoid. Williamson can allow that perceptual knowledge is possible and that all knowledge is evidence, while at the same time avoiding Klein's problem. But while Williamson can allow that we know some things through experience, there are very many things he must say we cannot know. Given just how very many these are, he should be considered a sceptic.

The core of Tony Brueckner’s critique in ‘Knowledge, Evidence, and Skepticism according to Williamson’ is his claim in section 5 that my account of perceptual knowledge has an unacceptable consequence. My reply will concentrate on that claim and largely ignore the rest of Brueckner’s interesting discussion, for it is easy to check that the claim is essential to Brueckner’s argument against my analysis of skepticism and evidence. The alleged consequence at issue concerns a case in which Brueckner knows by seeing that his cup is red. According to Brueckner, I am committed to the implausible view that ‘[his] belief of the proposition that [his] cup is red is justified in virtue of [his] belief of the proposition that [his] cup is red!’ Why does he take my account of..

A single argument template—the EPH template—can be used to generate versions of the best known and most challenging skeptical problems. In his brilliantly groundbreaking book Knowledge and Its Limits, Timothy Williamson presents a theory of knowledge and evidence which he clearly intends to provide a response to skepticism in its most important forms. After laying out EPH skepticism and reviewing possible ways of responding to it, I show how elements of Williamson’s theory motivate a hitherto unexplored way of responding to EPH-generated skeptical arguments. Then I offer reasons to doubt the correctness of Williamson’s response.

A single argument template—the EPH template—can be used to generate versions of the best known and most challenging skeptical problems. In his brilliantly groundbreaking book Knowledge and Its Limits, Timothy Williamson presents a theory of knowledge and evidence which he clearly intends to provide a response to skepticism in its most important forms. After laying out EPH skepticism and reviewing possible ways of responding to it, I show how elements of Williamson’s theory motivate a hitherto unexplored way of responding to EPH-generated skeptical arguments. Then I offer reasons to doubt the correctness of Williamson’s response.

The core of Tony Brueckner’s critique in ‘Knowledge, Evidence, and Skepticism according to Williamson’ is his claim in section 5 that my account of perceptual knowledge has an unacceptable consequence. My reply will concentrate on that claim and largely ignore the rest of Brueckner’s interesting discussion, for it is easy to check that the claim is essential to Brueckner’s argument against my analysis of skepticism and evidence.

The core of Tony Brueckner’s critique in ‘Knowledge, Evidence, and Skepticism according to Williamson’ is his claim in section 5 that my account of perceptual knowledge has an unacceptable consequence. My reply will concentrate on that claim and largely ignore the rest of Brueckner’s interesting discussion, for it is easy to check that the claim is essential to Brueckner’s argument against my analysis of skepticism and evidence.