Peter Ludlow shows how word meanings are much more dynamic than we might have supposed, and explores how they are modulated even during everyday conversation. The resulting view is radical, and has far-reaching consequences for our political and legal discourse, and for enduring puzzles in the foundations of semantics, epistemology, and logic.

What can we know and what should we believe about today's world? _What to Believe Now: Applying Epistemology to Contemporary Issues_ applies the concerns and techniques of epistemology to a wide variety of contemporary issues. Questions about what we can know-and what we _should_ believe-are first addressed through an explicit consideration of the practicalities of working these issues out at the dawn of the twenty-first century. Coady calls for an 'applied turn' in epistemology, a process he likens to the applied (...) turn that transformed the study of ethics in the early 1970s. Subjects dealt with include: Experts-how can we recognize them? And when should we trust them? Rumors-should they _ever_ be believed? And can they, in fact, be a source of knowledge? Conspiracy theories-when, if ever, should they be believed, and can they be known to be true? The blogosphere-how does it compare with traditional media as a source of knowledge and justified belief? Timely, thought provoking, and controversial, _What to Believe Now _offers a wealth of insights into a branch of philosophy of growing importance-and increasing relevance-in the twenty-first century. (shrink)

One of the most salient features of our culture is that there is so much bullshit. Everyone knows this. Each of us contributes his share. But we tend to take the situation for granted. Most people are rather confident of their ability to recognize bullshit and to avoid being taken in by it. So the phenomenon has not aroused much deliberate concern. We have no clear understanding of what bullshit is, why there is so much of it, or what functions (...) it serves. And we lack a conscientiously developed appreciation of what it means to us. In other words, as Harry Frankfurt writes, "we have no theory." Frankfurt, one of the world's most influential moral philosophers, attempts to build such a theory here. With his characteristic combination of philosophical acuity, psychological insight, and wry humor, Frankfurt proceeds by exploring how bullshit and the related concept of humbug are distinct from lying. He argues that bullshitters misrepresent themselves to their audience not as liars do, that is, by deliberately making false claims about what is true. In fact, bullshit need not be untrue at all. Rather, bullshitters seek to convey a certain impression of themselves without being concerned about whether anything at all is true. They quietly change the rules governing their end of the conversation so that claims about truth and falsity are irrelevant. Frankfurt concludes that although bullshit can take many innocent forms, excessive indulgence in it can eventually undermine the practitioner's capacity to tell the truth in a way that lying does not. Liars at least acknowledge that it matters what is true. By virtue of this, Frankfurt writes, bullshit is a greater enemy of the truth than lies are. (shrink)

What is post-truth? -- Science denial as a road map for understanding post-truth -- The roots of cognitive bias -- The decline of traditional media -- The rise of social media and the problem of fake news -- Did post-modernism lead to post-truth? -- Fighting post-truth.

Looking at the recent spate of claims about “fake news” which appear to be a new feature of political discourse, I argue that fake news presents an interesting problem in epistemology. Te phenomena of fake news trades upon tolerating a certain indiference towards truth, which is sometimes expressed insincerely by political actors. Tis indiference and insincerity, I argue, has been allowed to fourish due to the way in which we have set the terms of the “public” epistemology that maintains what (...) is considered “rational” public discourse. I argue one potential salve to the problem of fake news is to challenge this public epistemology by injecting a certain ethical consideration back into the discourse. (shrink)

This chapter considers whether ordinary instances of racist hate speech can be authoritative, thereby constituting the subordination of people of color. It is often said that ordinary speakers cannot subordinate because they lack authority. Here it is argued that there are more ways in which speakers can come to have authority than have been generally recognized. In part, this is because authority has been taken to be too closely tied to social position. This chapter presents a series of examples which (...) show that speaker authority needn’t derive from social position at all. Moreover, these examples also show that a speaker can come to have authority even when they lack it prior to speaking. After distinguishing these different ways in which speakers can come to have authority, it is argued that there is ample reason to think that even producers of ordinary instances of racist hate speech can sometimes have authority in these ways. (shrink)