Dreams and Skepticism

Recently, Ernest Sosa (2007) has proposed two novel solutions to the problem of dream skepticism. In the present paper, I argue that Sosa’s first solution falls prey to what I will refer to as the conditionality problem, i.e., the problem of only establishing a conditional—in this case, if x, then I am awake, x being a placeholder for a condition incompatible with dreaming—in a context where it also needs to be established that we can know that the antecedent holds, and (...) as such can infer the consequent, i.e., I am awake. Sosa’s second solution, in terms of so-called reflective knowledge, is shown to land him in the dilemma of either facing yet another conditionality problem, or violating an internalist constraint that he explicitly grants the skeptic with respect to what kind of factors can be legitimately invoked in our account of how we may know the relevant antecedent. For these reasons, I conclude that Sosa has not solved the problem of dream skepticism. (shrink)

In her book "descartes", Margaret wilson proposes a new interpretation of the dreaming argument. According to this interpretation, Descartes does not reach his conclusion via a subconclusion that I cannot be certain that I am not dreaming (as was claimed by more traditional authors such as moore, Malcolm, Frankfurt, And walsh), But rather directly, By pointing out that I cannot be certain that waking experience is veridical. The present article examines the arguments supporting wilson's interpretation, And finds them to be (...) faulty. Thus the article's conclusions clearly favor the traditional interpretations mentioned above. (shrink)

Malcolm;[1] but the sharp attacks in the last decade on Malcolm's assumptions have led some philosophers to suppose that Descartes' dreaming problem is a cogent support for scepticism. [2] In this paper, I hope to dispose of the problem without using controversial assumptions of the sort used by Malcolm.

There are two epistemological problems connected with dreaming, which are of different kinds and require different treatment. The internal problem is best seen as a problem of rational consistency, of how we can maintain all of: Dreams are experiences we have during sleep. Dream-experiences are sufficiently similar to waking experiences for the subject to be able to mistake them for waking experiences. We can tell that we are awake. (1)-(3) threaten to violate a requirement on discrimination: that we can only (...) tell Xs from Ys if there is some detectable difference between Xs and Ys. Attempts to solve the problem by Descartes and Williams are considered. It is suggested that if we take account of levels of epistemic risk, we can use Descartes's criterion of lack of coherence, at least with hindsight - which is the time when we need to use it. (shrink)

In my remarks, I discuss Sosa's attempt to deal with the sceptical threat posed by dreaming. Sosa explores two replies to the problem of dreaming scepticism. First, he argues that, on the imagination model of dreaming, dreaming does not threaten the safety of our beliefs. Second, he argues that knowledge does not require safety, but a weaker condition which is not threatened by dreaming skepticism. I raise questions about both elements of his reply.

In my remarks, I discuss Sosa's attempt to deal with the sceptical threat posed by dreaming. Sosa explores two replies to the problem of dreaming scepticism. First, he argues that, on the imagination model of dreaming, dreaming does not threaten the safety of our beliefs. Second, he argues that knowledge does not require safety, but a weaker condition which is not threatened by dreaming skepticism. I raise questions about both elements of his reply.

Michael Williams believes that scepticism about the external world seems compelling only because the considerations that underpin it are thought to be "mere platitudes" about e.g., the nature and source of human knowledge, and hence, that if it shown through a "theoretical diagnosis" that it does not rest upon such platitudes, but contentious theoretical considerations that we are no means bound to accept, we can simply dismiss the absurd sceptical conclusion. Williams argues that scepticism does presuppose two extremely contentious doctrines, (...) however, he admits that if these doctrines are themselves motivated by "platitudes" then scepticism follows. I address Williams's arguments for thinking scepticism must presuppose these doctrines, and argue that he overlooks a way that they can be seen as motivated by mere platitudes. Thus, I conclude that William's novel rejection of scepticism fails. (shrink)

This dissertation examines a traditional philosophical problem within a novel framework. The so-called "problem of the external world" is a problem about how knowledge, and even reasonable belief, about the world are possible, and it is best characterized as the challenge to show how and why scepticism about the external world---the absurd view that such knowledge is impossible---is incorrect. My framework for the examination of this problem involves two major elements. ;The first element involves a general characterization of the nature (...) of "perennial" philosophical problems, like the problem of the external world, that attempts to isolate the specific features that render them problematic, which, in turn, isolates what is required for their solutions. Applying this characterization to the problem of the external world, the second element of the framework involves distinguishing between two approaches for the solving of the problem, which I label "constructive" and "deflationary," and establishing why the latter approach is preferable. I further distinguish between two general types of deflationary approaches---"therapeutic diagnosis," and "theoretical diagnosis"---and examine in detail what I take to be the major representatives of each strategy. In the process I offer novel critical interpretations of the work of G. E. Moore and Ludwig Wittgenstein, as well as some of the first detailed critical discussions of recent responses to scepticism by Hilary Putnam and Michael Williams. ;My general aim is to assess the strengths and weaknesses of both deflationary approaches as responses to scepticism. I argue that all of these attempts to solve the problem are unsatisfactory, and that the challenge to show why scepticism about the external world is incorrect has not yet been met. However, and this is perhaps the most important contribution of the dissertation, I hope to have shown where we should and should not look to meet the challenge. (shrink)

Abstract: Ernest Sosa has recently articulated an insightful response to skepticism and, in particular, to the dream argument. The response relies on two independent moves. First, Sosa offers the imagination model of dreaming according to which no assertions are ever made in dreams and no beliefs are involved there. As a result, it is possible to distinguish dreaming from being awake, and the dream argument is blocked. Second, Sosa develops a virtue epistemology according to which in appropriately normal conditions our (...) perceptual beliefs will be apt. Hence, in these conditions, we will have at least animal knowledge, and the conclusion of the dream argument is undermined. In this article, I examine various moves that the skeptic can make to resist Sosa's challenge, and I contrast the proposal to a neo-Pyrrhonian stance. In the end, there is surprisingly little disagreement about the status of ordinary perceptual beliefs in the two stances. (shrink)

After resolving the dreaming doubt at the end of the Sixth Meditation, Descartes concedes to Hobbes that one could apply the criterion for waking experience in a dream and thus be deceived, but he no longer considers this possibility to have skeptical force. I argue that this is a legitimate response by Descartes since 1) the dreaming doubt in the Sixth Meditation is no longer a global skeptical hypothesis as it is in the First, and 2) the level of certainty (...) that sensory experience must meet in the Sixth Meditation is lower than it must meet in the First. (shrink)

“The Matrix is a computer-generated dreamworld built to keep us under control” Morpheus, early in The Matrix. “ In dreaming, you are not only out of control, you don’t even know it…I was completely duped again and again the minute my pons, my amygdala, my perihippocampal cortex, my anterior cingulate, my visual association and parietal opercular cortices were revved up and my dorsolateral prefrontal cortex was muffled” ” J. Allan Hobson, The Dream Drugstore, p.64 The Matrix is an exercise in (...) ambivalence, and at the very heart of that ambivalence lies the Dream. In our dreams, we are not in control. Real dreaming, unlike many popular philosophers’ fictions, is an altered state, closely related to the states induced by chemical manipulations such as the use of (certain) medical or recreational drugs. The dreaming brain is not like the wakeful brain. Normal sensory input is blocked, attentional capacities are impaired or lost, memory is distorted, reasoning and logic are weakened, narratives run wild, self-reflection is dampened or destroyed, emotion and instinct are hyperstimulated, and forms of ‘top-down’ willed control and decision-making diluted and easily overwhelmed. (shrink)

Descartes argues that since there are no certain marks to distinguish waking experiences from dreams, we need to justify our belief that waking experiences are veridical experiences of physical objects while dreams are illusions. He resolves this problem by arguing that the absence of marks distinguishing dreams from waking experiences notwithstanding, we are justified in ascribing different cognitive values to waking experiences and dreams. For, our belief in God rules out any other explanation of the agreement of all our faculties (...) in supporting the instinctive belief that waking experiences are caused by physical objects. (shrink)

As sources of knowledge, perception and testimony are both vulnerable to sceptical arguments. To both arguments a Moorean response is possible: both can be refuted by reference to particular things known by perception and testimony. However, lies and dreams are different possibilities and they are different in a way that undercuts the plausibility of a Moorean response to a scepticism of testimony. The condition placed on testimonial knowledge cannot be trivially satisfi ed in the way the Moorean would suggest. This (...) has substantial implications for any non-sceptical epistemological theory of testimony. (shrink)

Suppose that someone writes an argument on a blackboard which leads to the conclusion that he may, at that time, be dreaming. He goes over it, considers its validity, the truth of its premises, its assumptions and so on, and then to his dismay, he judges that he is compelled to conclude that he may be dreaming. He goes over the argument repeatedly and carefully, but finds the conclusion ‘inescapable’. If reviewing the argument on the blackboard may be taken as (...) an analogue of reviewing thoughts before one's mind, then his condition seems like the condition which Descartes describes at the beginning of the Second Meditation: ‘The meditation of yesterday filled my mind with so many doubts that it is no longer in my power to forget them. And yet I do not see in what manner I can resolve them; and just as if I had all of a sudden fallen into very deep water, I am so disconcerted that I can neither make certain of setting my feet on the bottom, nor can I swim and support myself on the surface.’. (shrink)

Ernest Sosa has proposed two different ways to respond to dreaming skepticism. In this paper I argue that Sosa's first response —which centers on holding that we have no beliefs in dreams— does not appear to be successful against (what we have called) either the hyperbolic or the realistic dreaming skeptic. I also argue that his second attempt to respond to the dreaming skeptic by arguing that perceptual knowledge indeed counts as what he calls "animal knowledge", may succeed but requires (...) us to perform what appears to be some radical surgery on the concept of knowledge; a radical surgery that, as I show, is probably unnecessary to avoid dreaming skepticism. Finally, I sketch some independent considerations why I think that the hyperbolic skeptic's dreaming argument is not acceptable. Ernesto Sosa propone dos maneras de responder al escéptico del sueño. En este ensayo argumento que su primera propuesta, según la cual no tenemos creencias en los sueños, no parece ser una buena respuesta en contra de ninguno de los escepticismos del sueño, de los cuales distingo dos tipos: el hiperbólico y el realista. También argumento que su segunda propuesta para responder al escéptico del sueño, en la que argumenta que el conocimiento perceptual sí cuenta como (lo que él llama) conocimiento animal, quizá resulte exitosa; sin embargo, ésta requiere llevar a cabo una cirugía radical en el concepto de conocimiento; una cirugía que, como muestro, es probablemente innecesaria para evitar el escepticismo del sueño. Finalmente bosquejo algunas razones independientes por las cuales considero que el argumento del escéptico hiperbólico del sueño no es aceptable. (shrink)

Various possibilities, that one is dreaming, that one is being deceived by a deceitful demon, that one is a brain in the vat being stimulated to think one has a body and is in a regular world, have been invoked to show that all one's experience-based beliefs might be false. Descartes in Meditation I advises that in order not to lapse into his careless everyday view of things he, or at least his meditator, should pretend that all his experience-based beliefs, (...) indeed all his …. (shrink)

Skeptical dream-arguments are intended as general challenges to our epistemic claims concerning the world. They argue that we can never rule out the possibility of merely dreaming what we believe to perceive. In my paper I will scrutinize whether any kind of such argument is sound. On my view, many versions of this argument are defective. They are either too weak to challenge all kinds of our epistemic claims or they rely on implausibly strong epistemic principles. More plausible versions of (...) the argument can be rebutted by the results of recent empirical dream research. As I will argue, there is an introspective criterion for currently being awake. Nevertheless there is one version of the dream-argument, which I will call quasi-dream-argument, that survives all criticism and brings out the structure of a compelling skeptical argument very clearly. (shrink)

Broadly speaking, there are two different ways in which one might defend skepticism – an a priori wayand an empirical way. My first task in this paper is to defend the view that the preferred way to defendskepticism is empirical. My second task is to explain why this approach actually makes sense. Iaccomplish this latter task by responding to various criticisms one might advance against the possibilityof empirically defending skepticism. In service of this response, I distinguish between two differentkinds of (...) hallucination, ‘metaphysical’ and ‘ordinary’, and seek to clarify the notion of a‘presupposition’. (shrink)

Richard Fumerton’s “Principle of Inferential Justification” holds that, in order to be justified in believing P on the basis of E, one must be justified in believing that E makes P probable. I argue that the plausibility of this principle rests upon two kinds of mistakes: first, a level confusion; and second, a fallacy of misconditionalisation. Furthermore, Fumerton’s principle leads to skepticism about inferential justification, for which reason it should be rejected. Instead, the examples Fumerton uses to motivate his principle (...) can be accounted for using a different principle: in order for S to be justified in believing P on the basis of E, it must be true that E makes P probable. The latter principle can be independently motivated and does not lead to skepticism. (shrink)

Penultimate draft; please refer to published version -- especially important in this case, as the official version has been Britishized; even the title's second letter is not the same. Abstract. Ernest Sosa has argued that the solution to dream skepticism lies in an understanding of dreams as imaginative experiences – when we dream, on this suggestion, we do not believe the contents of our dreams, but rather imagine them. Sosa rebuts skepticism thus: dreams don’t cause false beliefs, so my beliefs (...) cannot be false, having been caused by dreams. I argue that, even assuming that Sosa is correct about the nature of dreaming, belief in wakefulness on these grounds is epistemically irresponsible. The proper upshot of the imagination model, I suggest, is to recharacterize the way we think about dream skepticism: the skeptical threat is not, after all, that we have false beliefs. So even though dreams don’t involve false beliefs, they still pose a skeptical threat, which I elaborate. (shrink)

Jennifer Windt’s Dreaming is an enormously rich and thorough book, developing illuminating connections between dreaming, the methodology of psychology, and various philosophical subfields. I’ll focus on two epistemological threads that run through the book. The first has to do with the status of certain assumptions about dreams. Windt argues that the assumptions that dreams involve experiences, and that dream reports are reliable — are methodologically necessary default assumptions, akin to Wittgensteinian hinge propositions. I’ll suggest that Windt is quietly pre-supposing some (...) sceptical assumptions, and that recent literature in epistemic externalism may bear in important ways on her arguments. The second thread involves the perennial sceptical worry that dreaming threatens ordinary knowledge. I’ll suggest again that Windt makes tacit sceptical assumptions one may wish to resist. (shrink)

lecture 1. Introduction : intellectual history and conceptual change -- lecture 2. The dawn of the 17th century : Aristotelian scholasticism -- lecture 3. The new vision of Francis Bacon -- lecture 4. The new astronomy and cosmology -- lecture 5. Descartes's dream of perfect knowledge -- lecture 6. The specter of Thomas Hobbes -- lecture 7. Skepticism and Jansenism : Blaise Pascal -- lecture 8. Newton's discovery -- lecture 9. The Newtonian revolution -- lecture 10. John Locke, the revolution (...) in knowledge -- lecture 11. The Lockean moment -- lecture 12. Skepticism and Calvanism : Pierre Bayle -- lecture 13. The moderns, the generation of 1680-1715 -- lecture 14. Introduction to deism -- lecture 15. The conflict between deism and Christianity -- lecture 16. Montesquieu and the problem of relativism -- lecture 17. Voltaire, bringing England to France -- lecture 18. Bishop Joseph Butler and God's providence -- lecture 19. The skeptical challenge to optimism, David Hume -- lecture 20. The assault upon philosophical optimism, Voltaire -- lecture 21. The philosophes : the triumph of the French Enlightenment -- lecture 22. Beccaria and enlightened reform -- lecture 23. Rousseau's dissent -- lecture 24. Materialism and naturalism, the boundaries of the Enlightenment. (shrink)

J. L. Austin’s attitude towards traditional epistemological problems was largely negative. They arise and are maintained, he charged, by “sleight of hand,” “wile,” “concealed motives,” “seductive fallacies,” fixation on a handful of “jejune examples” and a host of small errors, misinterpretations, and mistakes about matters of fact (1962: 3- 6, 1979: 87). As these charges indicate, he did not offer a general critical theory of traditional epistemological theorizing or of the intellectual motivations that lead to it. Instead, he subjected individual (...) arguments to piecemeal criticism, patiently showing how things go awry in conception, motivation, argumentation, and plain fact. The work was incremental, but the goal was radical: to reduce large edifices to rubble. As he put it regarding certain sense datum theories, “the right policy is to go back to a much earlier stage, and to dismantle the whole doctrine before it gets off the ground” (1962: 142). It is often said that Austin’s criticisms were linguistic, but this is only partly right. While he occasionally charges traditional epistemologists with misusing crucial words and relying on unregulated and inadequately motivated technical terms, he also charges them with factual errors and with distorting or misunderstanding the procedures involved in epistemically evaluating people’s claims and beliefs. For this reason, it is best to see Austin as criticizing traditional epistemological puzzles and projects from the point of view of our ordinary lives (including our best scientific theories and practices). He starts with a commitment to our ordinary ways of using words, our ordinary convictions about.. (shrink)

According to one fairly standard reconstruction Descartes' Dream Argument has two crucial premises. The paper starts by analysing two important failed attempts, discussed by Barry Stroud and Mark Steiner, at justifying one of these premises. On this basis then an alternative is suggested to the line of interpretation assumed by these attempts which easily resolves the problems they face. It is shown that this alternative and its rivals are on a par with respect to the other crucial premise of the (...) Dream Argument and that it is superior to the others in avoiding scepticism or infinite regress. (shrink)