In lieu of an abstract, here is a brief excerpt of the content:Philosophy, Psychiatry, & Psychology 11.1 (2004) 55-64 [Access article in PDF] Delusions and Discourse:Moving beyond the Constraints of the Modernist Paradigm David J. Harper This special issue provides a good opportunity to reflect on the range of views about delusions,1 and it is good to see all the authors taking the issue of how to approach this topic seriously. Here I wish to argue that the traditional (...) psychiatric view of delusions is problematic. In the first half of this article I will group my comments on the issues raised by the papers by Klee and Bayne and Pacherie together as I think that, for their differences, they share modernist philosophical assumptions. I will argue that the modernist paradigm runs into considerable problems in considering beliefs felt by some to be unusual and I will go on to argue that we need to move beyond this paradigm and embrace different approaches, of which the work by Georgaca is an exemplar. The Trouble with (traditional Views of) Delusions The traditional psychiatric view of delusion has come under increasing attack over recent years. As Georgaca has noted, a number of problems with the assumptions in definitions of delusion can be identified when they are viewed from a social constructionist perspective (Georgaca 2000, 2004; Harper 1992, 1996; Heise 1988). For convenience I will group these under four main headings. They Are Based on a Naively Realist View of the World The criterion of inaccuracy or falsity implies that deciding on the veracity of a belief is a relatively unproblematic matter. However, the reality of claims does not always seem so important in judgments about whether a belief is delusional or not. For example, there is little evidence that mental health professionals systematically investigate the basis for people's beliefs; rather, they decide whether a belief is plausible. Thus Maher has argued that the assessment of the plausibility of beliefs is "typically made by a clinician on the basis of "common sense," and not on the basis of a systematic evaluation of empirical data" (1992, 261). He notes that it is not "customary to present counterevidence to the patient; it is not even common to present vigorous counterargument" (1992, 261) and there appears to be some empirical evidence of this (McCabe et al. 2002). Here then, we begin to see [End Page 55] how psychiatry, while claiming to have the power to judge the truth of beliefs on the basis of its status as an empirical scientific discipline, can be seen to make judgments on the basis of common sense and taken-for-granted social and cultural assumptions.Some commentators have suggested that delusions should be identified less by whether they seem to accord with reality but more by whether a person gives evidence for their belief (Gillett 1995; Spitzer 1990). However, this seems to be based on an idealized view of how people manage their beliefs in everyday life. For example, I would question how many of us have evidence for many of the beliefs (e.g., political, ethical, religious, etc.) we hold dear; indeed it would be hard to think of what evidence we could have for some of them (e.g., religious and ethical beliefs). Some recent work has suggested that the diagnosis of delusion is made on the basis of how people with delusions talk and interact; for example, some have argued that they do not appear to appreciate the hearer's point of view (Palmer 2000). However, here and in previous work, Georgaca (2000, 2004) has shown that people with delusions are able to talk about and negotiate disagreements about their beliefs and that many disputes of fact cannot be settled in conversation. People Said to Have Delusions Are Seen to Vary in the Conviction With Which Those Beliefs Are Held There is evidence that people considered to be deluded vary in the conviction with which they hold beliefs (Garety 1985) and can also be persuaded to modify their beliefs if this is conducted in a sensitive and collaborative manner (e.g., Chadwick, Birchwood, and Trower 1996). This... (shrink)

Although histories of cognitive behaviour therapy have begun to appear, their use with people with psychosis diagnoses has received relatively little attention. In this article, we elucidate the conditions of possibility for the emergence of cognitive behaviour therapy for psychosis (CBTp) in England between 1982 and 2002. We present an analysis of policy documents, research publications and books, participant observation, and interviews with a group of leading researchers and senior policy actors. Informed by Derksen and Beaulieu’s articulation of social technologies, (...) we show how CBTp was developed and stabilised through the work of a variety of overlapping informal, academic, clinical, professional, and policy networks. The profession of clinical psychology played a key role in this development, successfully challenging the traditional ‘division of labour’ where psychologists focused on ‘neurosis’ and left ‘psychosis’ to psychiatry. Following Abbott's systems approach to professions, we identify a number of historical factors that created a jurisdictional vulnerability for psychiatry while strengthening the jurisdictional legitimacy of clinical psychology in providing psychological therapies to service users with psychosis diagnoses. The National Institute for Health and Clinical Excellence played a significant role in adjudicating jurisdictional legitimacy, and its 2002 schizophrenia guidelines, recommending the use of psychological therapies, marked a radical departure from the psychiatric consensus. Our analysis may be of wider interest in its focus on social technologies in a context of jurisdictional contestation. We discuss the implications of our study for the field of mental health and for the relationship between clinical psychology and psychiatry. (shrink)

This paper explores how the Bayesian program benefits from allowing for objective chance as well as subjective degree of belief. It applies David Lewis’s Principal Principle and David Christensen’s principle of informed preference to defend Howard Raiffa’s appeal to preferences between reference lotteries and scaling lotteries to represent degrees of belief. It goes on to outline the role of objective lotteries in an application of rationality axioms equivalent to the existence of a utility assignment to represent preferences in (...) Savage’s famous omelet example of a rational choice problem. An example motivating causal decision theory illustrates the need for representing subjunctive dependencies to do justice to intuitive examples where epistemic and causal independence come apart. We argue to extend Lewis’s account of chance as a guide to epistemic probability to include De Finetti’s convergence results. We explore Diachronic Dutch book arguments as illustrating commitments for treating transitions as learning experiences. Finally, we explore implications for Martingale convergence results for motivating commitment to objective chances. (shrink)

Fields of enquiry. Rome Harré on What is social science -- Toby Miller on Cultural studies -- Lawrence Sherman on Criminology -- Jonathan Haidt on Moral psychology -- Robert J. Shiller on Behavioural economics -- Births, deaths and human population. Sarah Franklin on the Sociology of reproductive technology -- Ann Oakley on Women's experience of childbirth -- Sarah Harper on the Population challenge for the 21st century -- Steven Pinker on Violence and human nature -- Social science through different (...) lenses. Gregory Clark on Names -- Robin Dunbar on Dunbar numbers -- David Goldblatt on the Sociology of football -- Trevor Marchand on Craft -- Bruce Hood on the Supernatural -- Doreen Massey on Space -- Politics and social science. Craig Calhoun on Protest movements -- Danny Dorling on Inequality -- Kate Pickett on the Case for equality. (shrink)

One of the enduring concerns of moral philosophy is deciding who or what is deserving of ethical consideration. Much recent attention has been devoted to the "animal question" -- consideration of the moral status of nonhuman animals. In this book, David Gunkel takes up the "machine question": whether and to what extent intelligent and autonomous machines of our own making can be considered to have legitimate moral responsibilities and any legitimate claim to moral consideration. The machine question poses a (...) fundamental challenge to moral thinking, questioning the traditional philosophical conceptualization of technology as a tool or instrument to be used by human agents. Gunkel begins by addressing the question of machine moral agency: whether a machine might be considered a legitimate moral agent that could be held responsible for decisions and actions. He then approaches the machine question from the other side, considering whether a machine might be a moral patient due legitimate moral consideration. Finally, Gunkel considers some recent innovations in moral philosophy and critical theory that complicate the machine question, deconstructing the binary agent--patient opposition itself. Technological advances may prompt us to wonder if the science fiction of computers and robots whose actions affect their human companions could become science fact. Gunkel's argument promises to influence future considerations of ethics, ourselves, and the other entities who inhabit this world. (shrink)

My dissertation examines the significance of value creation in the work of Friedrich Nietzsche. In working out Nietzsche’s view, my strategy is twofold. I begin by reconstructing Nietzsche’s metaethical commitments, offering an interpretation of Nietzsche’s conception of values that shows it to be consistent, and then I explore the nature and importance of value creation to Nietzsche’s project. I argue that value creation provides the core of Nietzsche’s response to his two most significant concerns: the failures of traditional morality and (...) the loss of meaning in the modern world. In Chapter 1 I examine the current literature concerning Nietzsche’s metaethics. Recently, scholars have engaged in debates over whether Nietzsche offers a version of moral realism or anti-realism. I argue that neither side of this debate adequately captures Nietzsche’s understanding of value. Moreover, by starting from these contemporary categories we cannot make sense of the importance Nietzsche places on value creation. In Chapter 2 I defend my account of Nietzsche’s conception of value by examining two features of his view: the nature of valuing and the connection between values and reasons. I argue that Nietzsche presents standards of value that are internal to the activity of valuing, and I explore the standards of health and honesty. Nietzsche’s strategy becomes clearer when we examine the connection he makes between values and tastes, and my view has the added interpretive benefit of revealing a motivation for Nietzsche’s untraditional philosophical methodology. In Chapters 3-4 I examine the processes and functions of value creation. I begin with the historical examples of value creation Nietzsche presents, and from these I elucidate the task of value creation. I argue that Nietzsche’s aim through value creation is the development of richer, shared sensibilities or forms of concern, which provide the foundation for a new approach to ethical reasoning and justification. Furthermore, value creation comprises Nietzsche’s principal strategy to avert nihilism. My development of value creation as both a new ethical ideal and a source of meaning results in a surprising conclusion about Nietzsche’s view of social relations. Many read Nietzsche as a radical individualist, believing his ideal of value creation must require solitude or the life of a hermit. Yet, value creation is best understood as a social activity. Despite Nietzsche’s reliance on the solitary individual, I suggest that Nietzsche’s commitments to value creation are best captured by a model of competitive collaboration, which he calls friendship. The contribution of my project extends beyond mere Nietzsche interpretation. In Chapter 5 I argue that Nietzsche offers compelling arguments that address contemporary ethical debates. I offer a Nietzschean critique of a recent call for value creation by J. David Velleman. I conclude by suggesting that Nietzsche offers an intriguing twist on Bernard Williams’ conception of ethical confidence; creating values creates the normative concepts that provide the basis for meaningful action. (shrink)

A familiar interpretation of quantum mechanics (one of a number of views sometimes labeled the "Copenhagen interpretation'"), takes its empirical apparatus at face value, holding that the quantum wave function evolves by the Schrödinger equation except on certain occasions of measurement, when it collapses into a new state according to the Born rule. This interpretation is widely rejected, primarily because it faces the measurement problem: "measurement" is too imprecise for use in a fundamental physical theory. We argue that this is (...) a weak objection, as there may be many ways of making "measurement" precise. However, measurement-collapse interpretations face a more serious objection: a dilemma tied to the quantum Zeno effect. Is measurement itself an observable that can enter superpositions? If yes, then the standard measurement-collapse dynamics is ill-defined. If no, then (at least if measurement is an observable), measurements can never start or finish. The best way out is to deny that measurement is an observable, but this leads to strong and revisionary consequences. This reinforces the view that there is no nonrevisionary interpretation of quantum mechanics. (shrink)

This chapter describes three relatively specific forms such as destructive uploading, gradual uploading, and nondestructive uploading. Neuroscience is gradually discovering various neural correlates of consciousness, but this research program largely takes the existence of consciousness for granted. It presents an argument for the pessimistic view and an argument for the optimistic view, both of which run parallel to related arguments that can be given concerning teletransportation. Cryonic technology offers the possibility of preserving our brains in a low‐temperature state shortly after (...) death, until such time as the technology is available to reactivate the brain or perhaps to upload the information in it. Reconstructive uploading from brain scans is closely akin to ordinary (nongradual) uploading from brain scans, with the main difference being the time delay, and perhaps the continued existence in the meantime of the original person. (shrink)

A new theory of moral and aesthetic value for the age of remix, going beyond the usual debates over originality and appropriation. Remix—or the practice of recombining preexisting content—has proliferated across media both digital and analog. Fans celebrate it as a revolutionary new creative practice; critics characterize it as a lazy and cheap (and often illegal) recycling of other people's work. In Of Remixology, David Gunkel argues that to understand remix, we need to change the terms of the debate. (...) The two sides of the remix controversy, Gunkel contends, share certain underlying values—originality, innovation, artistic integrity. And each side seeks to protect these values from the threat that is represented by the other. In reevaluating these shared philosophical assumptions, Gunkel not only provides a new way to understand remix, he also offers an innovative theory of moral and aesthetic value for the twenty-first century. In a section called “Premix,” Gunkel examines the terminology of remix (including “collage,” “sample,” “bootleg,” and “mashup”) and its material preconditions, the technology of recording. In “Remix,” he takes on the distinction between original and copy; makes a case for repetition; and considers the question of authorship in a world of seemingly endless recompiled and repurposed content. Finally, in “Postmix,” Gunkel outlines a new theory of moral and aesthetic value that can accommodate remix and its cultural significance, remixing—or reconfiguring and recombining—traditional philosophical approaches in the process. (shrink)

Addressing a challenge and opportunity that is definitive of life in the 21st century, this book provides a range of possible solutions that serve to motivate and structure future research and debate around the concept of 'the other' in communication.

Zizek Studies: The Greatest Hits (So Far) assembles and presents the best work published in the field of Zizek Studies over the last ten years, providing teachers, students, and researchers with a carefully curated volume of leading-edge scholarship addressing the unique and sometimes eclectic work of Slovenian philosopher and cultural critic Slavoj Zizek. The chapters included in this collection have been rigorously tested in and culled from the (virtual) pages of the International Journal of Zizek Studies, a leading open access (...) journal that began publication in 2007. The book is organized into three sections or subject areas where Zizek and his seemingly indefatigable efforts have had significant impact: philosophy, politics, and popular culture. As a "greatest hits," the book offers the long-time fan and uninitiated newcomer alike a comprehensive overview of the wide range of opportunity in the field of Zizek studies and a remarkable collection of truly interdisciplinary "hits" from a diverse set of innovative and accomplished writers. (shrink)

Introduction -- Repression, ignorance, and undone science -- The epistemic dimension of the political opportunity structure -- The politics of meaning: from frames to design conflicts -- The organizational forms of counterpublic knowledge -- Institutional change, industrial transitions, and regime resistance politics -- Contemporary change: liberalization and epistemic modernization -- Conclusion.

The book is an extended study of the problem of consciousness. After setting up the problem, I argue that reductive explanation of consciousness is impossible , and that if one takes consciousness seriously, one has to go beyond a strict materialist framework. In the second half of the book, I move toward a positive theory of consciousness with fundamental laws linking the physical and the experiential in a systematic way. Finally, I use the ideas and arguments developed earlier to defend (...) a form of strong artificial intelligence and to analyze some problems in the foundations of quantum mechanics. (shrink)

In a response to my recent article in this journal, Shahram Shahryari argues that I fail to present a third position between absolutism and relativism. He makes two points: first, that fallibilism is insufficient as an alternative, because it is compatible with both relativism and absolutism. The second point is that my argument that experience can lead to objective judgment without being a new absolute fails. I discuss these in turn, showing that both critiques fail and that pragmatism is a (...) genuine alternative between absolutism and relativism. (shrink)

A collection of essays focusing on the relationship between concepts of the holy and the unholy in western European medieval culture. Demonstrates how religion, magic, and science were all modes of engagement with a natural world that was understood to be divinely created and infused with mysterious power"--Provided by publisher.

This book describes various Western musical ecologies of the cosmos developed from the ancient world to the present, ecologies that seek to define the creation and preservation of the universe through musical principles. The author explores centuries of musical treatises, hymns, and Western fiction.

I will present two examples of influential (and incorrect) interpretations of Poincaré, pinpointing their errors and documenting some of their diffusion. The first example, which appears to have been initiated by Moritz Schlick, is the widespread misinterpretation of Poincaré’s argument for geometric conventionalism by basing it on the underdetermination of theories in science. The second example, having to do with Poincaré’s claim that Euclidean and non-Euclidean geometries are inter-translatable, stems from Louis Rougier and was spread in the English language literature (...) by Max Black. I will then reflect on whether it is possible to avoid fragmentation in the interpretation of Poincaré, using Jeremy Gray’s admirable attempt at completeness in his intellectual biography of Poincaré as an example. Finally, I will propose one possible new direction for study of Poincaré that might enrich our view of him substantially by achieving a level of detail that has so far been lacking. (shrink)

[This is an edited version of a keynote talk at the conference on Neural Information Processing Systems (NeurIPS) on November 28, 2022, with some minor additions and subtractions.] -/- There has recently been widespread discussion of whether large language models might be sentient or conscious. Should we take this idea seriously? I will break down the strongest reasons for and against. Given mainstream assumptions in the science of consciousness, there are significant obstacles to consciousness in current models: for example, their (...) lack of recurrent processing, a global workspace, and unified agency. At the same time, it is quite possible that these obstacles will be overcome in the next decade or so. I conclude that while it is somewhat unlikely that current large language models are conscious, we should take seriously the possibility that successors to large language models may be conscious in the not-too-distant future. (shrink)

Through a philosophical lens, this book explores the powerful educational capabilities of classic psychedelics.

A short, reader-friendly introduction to a complex philosophical topic. One that encompasses not just philosophical and literary topics but technological ones as well.

Terra nova 2.0 -- The real problem -- Social contract 2.0 -- In the face of others -- Open-ended conclusions.

This book argues against the common view that there are no essential differences between Plato and the Neoplatonist philosopher, Plotinus, on the issues of mysticism, epistemology, and ethics. Beginning by examining the ways in which Plato and Plotinus claim that it is possible to have an ultimate experience that answers the most significant philosophical questions, David J. Yount provides an extended analysis of why we should interpret both philosophers as mystics. The book then moves on to demonstrate that both (...) philosophers share a belief in non-discursive knowledge and the methods to attain it, including dialectic and recollection, and shows that they do not essentially differ on any significant views on ethics. Making extensive use of primary and secondary sources, Plato and Plotinus on Mysticism, Epistemology and Ethics shows the similarities between the thought of these two philosophers on a variety of philosophical questions, such as meditation, divination, wisdom, knowledge, truth, happiness and love. (shrink)

Standing on the Shoulders of Darwin and Mendel: Early Views of Inheritance explores early theories about the mechanisms of inheritance. Beginning with Charles Darwin's now rejected Gemmule hypothesis, the book documents the reception of Gregor Mendel's work on peas and follows the work of early 20th century scholars. The research of Francis Galton, a cousin of Darwin, and the friction it caused between these two are a part of longer story of the development of genetics and an understanding of how (...) offspring inherit the characteristics of their parents. Bateson, Garrod, de Vries, Tschermak and others are all characters in a scientific story of discovery, acrimony, cooperation and revelation. (shrink)

For many years, researchers and practitioners have sought out meaningful indicators of sales performance. Yet, as the concept of performance has broadened, the understanding of what makes up a successful seller, has become far more complicated. The complexity of buyer-seller relationships has changed therefore as the definition of sales performance has expanded, cultivating a growing interest in ethical/unethical actions since they could potentially have impacts on sales performance. Given this environment, the purpose of this study is to explore the impact (...) of moral judgment on sales performance and sellers engaging in a customer-oriented selling approach. Specifically, by utilizing a sample of 345 business-to-business salespeople, this study examines the relationships between moral judgment, customer-oriented selling, and outcome and behavior based performance. Results, managerial implications, and opportunities for future research are provided. (shrink)

There is a long tradition in philosophy of using a priori methods to draw conclusions about what is possible and what is necessary, and often in turn to draw conclusions about matters of substantive metaphysics. Arguments like this typically have three steps: first an epistemic claim , from there to a modal claim , and from there to a metaphysical claim.

The philosophical interest of verbal disputes is twofold. First, they play a key role in philosophical method. Many philosophical disagreements are at least partly verbal, and almost every philosophical dispute has been diagnosed as verbal at some point. Here we can see the diagnosis of verbal disputes as a tool for philosophical progress. Second, they are interesting as a subject matter for first-order philosophy. Reflection on the existence and nature of verbal disputes can reveal something about the nature of concepts, (...) language, and meaning. In this article I first characterize verbal disputes, spell out a method for isolating and resolving them, and draw out conclusions for philosophical methodology. I then use the framework to draw out consequences in first-order philosophy. In particular, I argue that the analysis of verbal disputes can be used to support the existence of a distinctive sort of primitive concept and that it can be used to reconstruct a version of an analytic/synthetic distinction, where both are characterized in dialectical terms alone. (shrink)

Is conceptual analysis required for reductive explanation? If there is no a priori entailment from microphysical truths to phenomenal truths, does reductive explanation of the phenomenal fail? We say yes . Ned Block and Robert Stalnaker say no.

This chapter analyzes aspects of the relationship between consciousness and intentionality. It focuses on the phenomenal character and the intentional content of perceptual states, canvassing various possible relations among them. It argues that there is a good case for a sort of representationalism, although this may not take the form that its advocates often suggest. By mapping out some of the landscape, the chapter tries to open up territory for different and promising forms of representationalism to be explored in the (...) future. In particular, it argues for a nonreductive, narrow, and Fregean variety of representationalism, which contrasts strongly with more widely explored varieties. It concludes with some words about the fundamental relationship between consciousness and intentionality. (shrink)

The most significant philosopher of Being, Martin Heidegger has nevertheless largely been ignored within communications studies. This book sets the record straight by demonstrating the profound implications of his unique philosophical project for our understanding of today's mediascape. The full range of Heidegger's writing from Being and Time to his later essays is drawn upon.

Does consciousness collapse the quantum wave function? This idea was taken seriously by John von Neumann and Eugene Wigner but is now widely dismissed. We develop the idea by combining a mathematical theory of consciousness (integrated information theory) with an account of quantum collapse dynamics (continuous spontaneous localization). Simple versions of the theory are falsified by the quantum Zeno effect, but more complex versions remain compatible with empirical evidence. In principle, versions of the theory can be tested by experiments with (...) quantum computers. The upshot is not that consciousness-collapse interpretations are clearly correct, but that there is a research program here worth exploring. (shrink)

In the Garden of Eden, we had unmediated contact with the world. We were directly acquainted with objects in the world and with their properties. Objects were simply presented to us without causal mediation, and properties were revealed to us in their true intrinsic glory.

Fechner's conception of psychophysics included both “outer psychophysics” the relation between stimulus intensity and the response reflecting sensation strength, and “inner psychophysics” the relation between neurelectric responses and sensation strength. In his own time outer psychophysics focussed on the form of the psychophysical law, with Fechner espousing a logarithmic law, Delboeuf a variant of the logarithmic law incorporating a resting level of neural activity, and Plateau a power law. One of the issues on which the dispute was focussed concerned the (...) appearance of contrasts if the overall illumination was increased or decreased; another issue was the question of whether a sensation of a “just noticeable difference” established for one value of a sensory dimension appeared the same for a value elsewhere on the dimension. The development of “inner psychophysics” led through the works of Delboeuf, Solomons, Jastrow, and Thurstone to modern signal detection theory. A third line of research, devoted to the question of what was meant by the “measurement” of sensation strength, stemmed from the criticism of Fechner's work by von Kries (1882) and others. Although a valid body of science could be built up without the intervening variable called “sensation strength,” such a science might be a cumbersome representation of reality. When an optical contrast is set up, and its overall illumination is increased or decreased, subjective contrasts involving medium levels of lightness vary little as illumination varies (as a power law based on sensation ratios or a logarithmic law based on sensation differences predict), but subjective contrasts involving extreme levels of lightness might be subject to the effects of other variables. (shrink)

Why is two-dimensional semantics important? One can think of it as the most recent act in a drama involving three of the central concepts of philosophy: meaning, reason, and modality. First, Kant linked reason and modality, by suggesting that what is necessary is knowable a priori, and vice versa. Second, Frege linked reason and meaning, by proposing an aspect of meaning (sense) that is constitutively tied to cognitive signi?cance. Third, Carnap linked meaning and modality, by proposing an aspect of meaning (...) (intension) that is constitutively tied to possibility and necessity. (shrink)

The basic question of ontology is “What exists?”. The basic question of metaontology is: are there objective answers to the basic question of ontology? Here ontological realists say yes, and ontological anti-realists say no. (Compare: The basic question of ethics is “What is right?”. The basic question of metaethics is: are there objective answers to the basic question of ethics? Here moral realists say yes, and moral anti-realists say no.) For example, the ontologist may ask: Do numbers exist? The Platonist (...) says yes, and the nominalist says no. The metaontologist may ask: is there an objective fact of the matter about whether numbers exist? The ontological realist says yes, and the ontological anti-realist says no. Likewise, the ontologist may ask: Given two distinct entities, when does a mereological sum of those entities exist? The universalist says always, while the nihilist says never. The metaontologist may ask: is there an objective fact of the matter about whether the mereological sum of two distinct entities exists? The ontological realist says yes, and the ontological anti-realist says no. Ontological realism is often traced to Quine (1948), who held that we can determine what exists by seeing which entities are endorsed by our best scientific theory of the world. In recent years, the practice of ontology has often presupposed an ever-stronger ontological realism, and strong versions of ontological realism have received explicit statements by Fine (this volume), Sider (2001; this volume), van Inwagen (1998; this volume), and others. (shrink)

What happens when machines become more intelligent than humans? One view is that this event will be followed by an explosion to ever-greater levels of intelligence, as each generation of machines creates more intelligent machines in turn. This intelligence explosion is now often known as the “singularity”. The basic argument here was set out by the statistician I.J. Good in his 1965 article “Speculations Concerning the First Ultraintelligent Machine”: Let an ultraintelligent machine be defined as a machine that can far (...) surpass all the intellectual activities of any man however clever. Since the design of machines is one of these intellectual activities, an ultraintelligent machine could design even better machines; there would then unquestionably be an “intelligence explosion”, and the intelligence of man would be left far behind. Thus the first ultraintelligent machine is the last invention that man need ever make. The key idea is that a machine that is more intelligent than humans will be better than humans at designing machines. So it will be capable of designing a machine more intelligent than the most intelligent machine that humans can design. So if it is itself designed by humans, it will be capable of designing a machine more intelligent than itself. By similar reasoning, this next machine will also be capable of designing a machine more intelligent than itself. If every machine in turn does what it is capable of, we should expect a sequence of ever more intelligent machines. This intelligence explosion is sometimes combined with another idea, which we might call the “speed explosion”. The argument for a speed explosion starts from the familiar observation that computer processing speed doubles at regular intervals. Suppose that speed doubles every two years and will do so indefinitely. Now suppose that we have human-level artificial intelligence 1 designing new processors. Then faster processing will lead to faster designers and an ever-faster design cycle, leading to a limit point soon afterwards. The argument for a speed explosion was set out by the artificial intelligence researcher Ray Solomonoff in his 1985 article “The Time Scale of Artificial Intelligence”.1 Eliezer Yudkowsky gives a succinct version of the argument in his 1996 article “Staring at the Singularity”: “Computing speed doubles every two subjective years of work.. (shrink)

I argue that virtual reality is a sort of genuine reality. In particular, I argue for virtual digitalism, on which virtual objects are real digital objects, and against virtual fictionalism, on which virtual objects are fictional objects. I also argue that perception in virtual reality need not be illusory, and that life in virtual worlds can have roughly the same sort of value as life in non-virtual worlds.