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)

The primary quantum mechanical equation of motion entails that measurements typically do not have determinate outcomes, but result in superpositions of all possible outcomes. Dynamical collapse theories (e.g. GRW) supplement this equation with a stochastic Gaussian collapse function, intended to collapse the superposition of outcomes into one outcome. But the Gaussian collapses are imperfect in a way that leaves the superpositions intact. This is the tails problem. There are several ways of making this problem more precise. But many authors dismiss (...) the problem without considering the more severe formulations. Here I distinguish four distinct tails problems. The first (bare tails problem) and second (structured tails problem) exist in the literature. I argue that while the first is a pseudo-problem, the second has not been adequately addressed. The third (multiverse tails problem) reformulates the second to account for recently discovered dynamical consequences of collapse. Finally the fourth (tails problem dilemma) shows that solving the third by replacing the Gaussian with a non-Gaussian collapse function introduces new conflict with relativity theory. (shrink)

We defend the many-worlds interpretation of quantum mechanics against the objection that it cannot explain why measurement outcomes are predicted by the Born probability rule. We understand quantum probabilities in terms of an observer's self-location probabilities. We formulate a probability postulate for the MWI: the probability of self-location in a world with a given set of outcomes is the absolute square of that world's amplitude. We provide a proof of this postulate, which assumes the quantum formalism and two principles concerning (...) symmetry and locality. We also show how a structurally similar proof of the Born rule is available for collapse theories. We conclude by comparing our account to the recent account offered by Sebens and Carroll. (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)

Integrated information theory is a theory of consciousness that was originally formulated, and is standardly still expressed, in terms of controversial interpretations of its own ontological and epistemological basis. These form the orthodox interpretation of IIT. The orthodox epistemological interpretation is the axiomatic method, whereby IIT is ultimately derived from, justified by, and beholden to a set of phenomenological axioms. The orthodox ontological interpretation is panpsychism, according to which consciousness is fundamental, intrinsic, and pervasive. In this paper it is argued (...) that both components of the orthodox interpretation should be rejected. But IIT should not be rejected since an interpretation-neutral formulation is available. After explaining the neutral formulation, more plausible non-axiomatic epistemologies are defended. The neutral formulation is then shown to be consistent with various contemporary physicalist ontologies of consciousness, including the phenomenal concept strategy, representationalism, and even illusionism. Along the way, instructive connections between interpretations of IIT and interpretations of quantum mechanics are noted. (shrink)

The many worlds interpretation of quantum mechanics (MWI) states that the world we live in is just one among many parallel worlds. It is widely believed that because of this commitment to parallel worlds, the MWI violates common sense. Some go so far as to reject the MWI on this basis. This is despite its myriad of advantages to physics (e.g. consistency with relativity theory, mathematical simplicity, realism, determinism, etc.). Here, we make the case that common sense in fact favors (...) the MWI. We argue that causal explanations are commonsensical only when they are local causal explanations. We present several quantum mechanical experiments that seem to exhibit nonlocal “action at a distance”. Under the assumption that only one world exists, these experiments seem immune to local causal explanation. However, we show that the MWI, by taking all worlds together, can provide local causal explanations of the experiments. The MWI therefore restores common sense to physical explanation. (shrink)

According to Epistemic Two-Dimensional Semantics (E2D), expressions have a counterfactual intension and an epistemic intension. Epistemic intensions reflect cognitive significance such that sentences with necessary epistemic intensions are a priori. We defend E2D against an influential line of criticism: arguments from epistemic misclassification. We focus in particular on the arguments of Speaks [2010] and Schroeter [2005]. Such arguments conclude that E2D is mistaken from (i) the claim that E2D is committed to classifying certain sentences as a priori, and (ii) the (...) claim that such sentences are a posteriori. We aim to show that these arguments are unsuccessful as (i) and (ii) undercut each other. One must distinguish the general framework of E2D from a specific implementation of it. The framework is flexible enough to avoid commitment to the apriority of any particular sentence; only specific implementations are so committed. Arguments from epistemic misclassification are therefore better understood as arguments for favouring one implementation of E2D over another, rather than as refutations of E2D. (shrink)

The apparent nonlocality of quantum theory has been a persistent concern. Einstein et al. and Bell emphasized the apparent nonlocality arising from entanglement correlations. While some interpretations embrace this nonlocality, modern variations of the Everett-inspired many worlds interpretation try to circumvent it. In this paper, we review Bell's "no-go" theorem and explain how it rests on three axioms, local causality, no superdeterminism, and one world. Although Bell is often taken to have shown that local causality is ruled out by the (...) experimentally confirmed entanglement correlations, we make clear that it is the conjunction of the three axioms that is ruled out by these correlations. We then show that by assuming local causality and no superdeterminism, we can give a direct proof of many worlds. The remainder of the paper searches for a consistent, local, formulation of many worlds. We show that prominent formulations whose ontology is given by the wave function violate local causality, and we critically evaluate claims in the literature to the contrary. We ultimately identify a local many worlds interpretation that replaces the wave function with a separable Lorentz-invariant wave-field. We conclude with discussions of the Born rule, and other interpretations of quantum mechanics. (shrink)

The principle of mass additivity states that the mass of a composite object is the sum of the masses of its elementary components. Mass additivity is true in Newtonian mechanics but false in special relativity. Physicists have explained why mass additivity is true in Newtonian mechanics by reducing it to Newton’s microphysical laws. This reductive explanation does not fit well with deducibility theories of reductive explanation such as the modern Nagelian theory of reduction, and the a priori entailment theory of (...) reduction that is prominent in the philosophy of mind. Nonetheless, I argue that a reconstruction of the explanation that incorporates distinctively philosophical concepts in fact fits both theories. I discuss the implications of this result for both theories and for the reductive explanation of consciousness. (shrink)

Under what conditions are material objects, such as particles, parts of a whole object? This is the composition question and is a longstanding open question in philosophy. Existing attempts to specify a non-trivial restriction on composition tend to be vague and face serious counterexamples. Consequently, two extreme answers have become mainstream: composition (the forming of a whole by its parts) happens under no or all conditions. In this paper, we provide a self-contained introduction to the integrated information theory of consciousness (...) (IIT). We show that IIT specifies a non-trivial restriction on composition: composition happens when integrated information is maximized. We compare the IIT-restriction to existing proposals and argue that the IIT-restriction has significant advantages, especially in response to the problems of vagueness and counterexamples. An appendix provides an introduction to calculating parts and wholes with a simple system. (shrink)

Various tests have been proposed as helps to identify intrinsic properties. This paper compares three prominent tests and shows that they fail to pass adequate verdicts on a set of three properties. The paper examines whether improved versions of the tests can reduce or remove these negative outcomes. We reach the sceptical conclusion that whereas some of the tests must be discarded as inadequate because they don’t yield definite results, the remaining tests depend for their application on the details of (...) fundamental particle physics so much so that they cannot be relied upon. (shrink)

In [1] it is claimed that, based on radiation emission measurements described in [2], a certain “variant” of the Orch OR theory has been refuted. I agree with this claim. However, the significance of this result for Orch OR per se is unclear. After all, the refuted “variant” was never advocated by anyone, and it contradicts the views of Hameroff and Penrose (hereafter: HP) who invented Orch OR [3]. My aim is to get clear on this situation. I argue that (...) it is indeed reasonable to speak of “variants” here. Orch OR is not a complete model of reality but a work in progress. At its core, it claims that wavefunction collapse is a real physical event that has something to do with gravity (“OR”) and that consciousness depends on orchestrated collapses in microtubules (“Orch”). There are many ways one could make these base ideas precise hence many “variants”. Furthermore, the ways that HP aim to make these ideas precise are radical and incomplete. If they don’t work out, Orch OR will need to fall back on another variant. Thus, I believe the significance of [1-2] for Orch OR is that it cuts out a small class of possible variants and leaves behind questions and challenges for the rest, including the variant preferred by HP. (shrink)

Perceptual filling-in for vision is the insertion of visual properties (e.g., color, contour, luminance, or motion) into one’s visual field, when those properties have no corresponding retinal input. This paper introduces and provides preliminary empirical support for filled/non-filled pairs, pairs of images that appear identical, yet differ by amount of filling-in. It is argued that such image pairs are important to the experimental testing of theories of consciousness. We review recent experimental research and conclude that filling-in involves brain activity with (...) relatively high integrated information (Phi) compared to veridical visual perceptions. We then present filled/non-filled pairs as an empirical challenge to the integrated information theory of consciousness, which predicts that phenomenologically identical experiences depend on brain processes with identical Phi. (shrink)

The purpose of this book is to explain Quantum Bayesianism (‘QBism’) to “people without easy access to mathematical formulas and equations” (4-5). Qbism is an interpretation of quantum mechanics that “doesn’t meddle with the technical aspects of the theory [but instead] reinterprets the fundamental terms of the theory and gives them new meaning” (3). The most important motivation for QBism, enthusiastically stated on the book’s cover, is that QBism provides “a way past quantum theory’s paradoxes and puzzles” such that much (...) of the weirdness associated with quantum theory “dissolves under the lens of QBism”. (shrink)

In an article published in 1930, Lev Vygotsky refers explicitly to the seventeenth century Dutch philosopher Benedictus de Spinoza. From a close reading of Vygotsky’s remarkable piece, ‘The socialist transformation of man,’ the extraordinary parallels in the lives and philosophies of Vygotsky and Spinoza are revealed. Then the strengths and weaknesses are assessed of the analytical approach Vygotsky may have inherited from Spinoza. It is suggested that there are analytical ramifications arising from Vygotsky’s possible reliance on Spinoza’s nuanced but essentially (...) dualistic philosophy. The conclusion is that the key limitation of this methodology is the elision of radical doubting with radical unknowability. (shrink)

Sets out Catholic teaching on hotly debated issues such as stem cell research, reproductive technologies, euthanasia and much more.

Chimpanzee language studies have generated much heated controversy, as Roger Fouts can attest from firsthand experience. Perhaps this is because language is usually considered to be what truly distinguishes humans from apes. If chimps can indeed be taught the rudiments of language, then the difference between them and us is not as great as we might have thought. It is a matter of degree rather than kind, a continuity, and our species is not so special after all. The advantage of (...) this continuity thesis, as Fouts has emphasized, is that it conforms to the general tenets of evolutionary theory, and fits well with the evidence from paleontology and genetics that suggests that apes and humans are close cousins. It also .. (shrink)

Thomson, Kelvin You might be surprised to learn that China, home of the much derided one-child policy, has a higher birth rate than Italy, home of the Vatican. This suggests Chinese families are quietly defying their political leaders and Italian families are quietly defying their religious ones. But the overall global picture is one of rapid population growth.

In this essay Kelvin Beckett argues that Richard Peters's major work on education, Ethics and Education, belongs on a short list of important texts we can all share. He argues this not because of the place it has in the history of philosophy of education, as important as that is, but because of the contribution it can still make to the future of the discipline. The limitations of Peters's analysis of the concept of education in his chapter on “Criteria (...) of Education” are well known. In the chapter on “Education as Initiation,” however, Peters offered a synthetic sketch of education that, Beckett argues, points us toward a more comprehensive definition of education, one which, he maintains, can be accepted by all philosophers, regardless of the tradition they work in. (shrink)

Bioregionalism can strengthen environmental pragmatism by making it more critical of the status quo and even more environmental, without abandoning pragmatism's democratic aims. It thus answers important objections to pragmatism raised by Robyn Eckersley. Despite some apparent differences, bioregionalism is a form of environmental pragmatism, as it incorporates practical ethics and is committed to pluralism and democratic community. Bryan Norton's environmental pragmatism is already close to a bioregional view. After answering Eckersley, the paper concludes by raising the question of whether (...) environmental pragmatists should be bioregionalists. (shrink)

John Dewey adopted a child-centered point of view to illuminate aspects of education he believed teacher-centered educators were neglecting, but he did so self-consciously and self-critically, because he also believed that ‘a new order of conceptions leading to new modes of practice’ was needed. Dewey introduced his new conceptions in The Child and the Curriculum and later and more fully in Democracy and Education. Teachers at his Laboratory School in Chicago developed the new modes of practice. In this article, I (...) explore Dewey’s new conception of education and compare it with the apparently opposed views of R. S. Peters and Paulo Freire. In doing so, I show that, despite their criticisms of Dewey, whether explicit or implicit, these influential philosophers, representing quite different traditions in philosophy of education were in substantial agreement with him. I also show that, despite our own differences, as important as they are, seeing teachers and learners at work in a rapidly changing society, now on a global scale, in classrooms which are also changing, driven largely by new technologies, the conception of education Dewey, Peters, and Freire developed can provide us with the foundation we need to understand the changing teacher–learner relationship and the purposes their shared activities serve. (shrink)

Children who grow up with a life‐threatening illness live and face death in a way that is foreign to those of us who have reached adulthood in relative health. The experiences that form their identities create a range of knowledge, and processes for acquiring that knowledge, quite apart from the mainstream. In the pace of its acquisition, and the depth of its content, this knowledge is hard for the rest of us to comprehend. Indeed, the primary symptom of this alternate (...) cognizance is that it sets these children apart from their families, peers, and greater communities. The child as a whole is marginalized in interpersonal relations by essentializing the child as the illness. The experience of the illness itself further isolates the child.Through firsthand observation, we find that the Hole in the Wall Gang summer camps provide a nearly unique environment for the normalization of this alternate cognizance. At camp, all those things that set them apart from the rest of the world mark them as normal members of a society. Other children share their physical qualities, have similar experiences and immediately understand their perspective on life. Small adjustments to social and physical environments have a lasting effect. A warm pool to swim in, a caring touch, an open smile—the children take the memory of these with them when they leave. They begin to understand that they are a desired part of a large and varied community. A new definition of normal is created and they are included. (shrink)

In this article, I argue that Paulo Freire’s liberatory conception of education is interesting, challenging, even transforming because central to it are important aspects of education which other philosophers marginalise. I also argue that Freire’s critics are right when they claim that he paid insufficient attention to another important aspect of education. Finally, I argue for a conception of education which takes account of the strengths and at the same time overcomes the limitations of Freire’s liberatory conception.

Kelvin Beckett; Transmission, Journal of Philosophy of Education, Volume 17, Issue 2, 30 May 2006, Pages 201–205, https://doi.org/10.1111/j.1467-9752.1983.tb000.

Kelvin Beckett; Growth Theory Reconsidered, Journal of Philosophy of Education, Volume 19, Issue 1, 30 May 2006, Pages 49–54, https://doi.org/10.1111/j.1467-975.

Aristotle is the most influential philosopher of practice, and Knight's new book explores the continuing importance of Aristotelian philosophy. First, it examines the theoretical bases of what Aristotle said about ethical, political and productive activity. It then traces ideas of practice through such figures as St Paul, Luther, Hegel, Heidegger and recent Aristotelian philosophers, and evaluates Alasdair MacIntyre's contribution. Knight argues that, whereas Aristotle's own thought legitimated oppression, MacIntyre's revision of Aristotelianism separates ethical excellence from social elitism and justifies resistance. (...) With MacIntyre, Aristotelianism becomes revolutionary. MacIntyre's case for the Thomistic Aristotelian tradition originates in his attempt to elaborate a Marxist ethics informed by analytic philosophy. He analyses social practices in teleological terms, opposing them to capitalist institutions and arguing for the cooperative defence of our moral agency. In condensing these ideas, Knight advances a theoretical argument for the reformation of Aristotelianism and an ethical argument for social change. (shrink)

This paper is a review of words and their meanings in the field of technology studies, and an analysis the semantics of an idealistic international technology-related social movement that flourished briefly during the second half of the twentieth century. Sloppy nomenclature employed by proponents and observers of the movement led to people with opposite views appearing to agree (and vice versa), with the consequence that the movement’s valuable policy insights exerted only marginal influence on mainstream technology policy. I conclude that (...) poor technological semantics may undermine effective technological practice. Suggestions for a constructive technological nomenclature are presented. (shrink)

ABSTRACT:This article deploys Alasdair MacIntyre’s Aristotelian virtue ethics, in which meaningfulness is understood to supervene on human functioning, to bring empirical and ethical accounts of meaningful work into dialogue. Whereas empirical accounts have presented the experience of meaningful work either in terms of agents’ orientation to work or as intrinsic to certain types of work, ethical accounts have largely assumed the latter formulation and subjected it to considerations of distributive justice. This article critiques both the empirical and ethical literatures from (...) the standpoint of MacIntyre’s account of the relationship between the development of virtuous dispositions and participation in work that is productive of goods internal to practices. This reframing suggests new directions for empirical and ethical enquiries. (shrink)

The propositions that the senses are separate and that the global array may be sufficient for adequate perception are questioned. There is evidence that certain tasks may be primarily but these are a special case along the behavioral continuum. Many tasks involve sensory information that is ambiguous, and other sources of information may be required for adequate perception.

What makes some firms more innovative than others and what determines the source of these innovations are questions that are still not adequately answered due to the complex, often esoteric, nature of the innovation process. This paper considers the effect of one externally oriented strategy (extent of formal inter-organizational linkages) and one internally oriented strategy (degree of knowledge intensity) on overall levels of innovativeness and the source of these innovations. Using data collected from firms operating in the bioscience-technology industries in (...) both New York and Utah, our results suggest that both of these strategies have a significant effect upon innovation levels and the source of innovation (internally versus externally stimulated). Interestingly, there were few firms that undertook both of these strategies simultaneously and thus the proposed interaction effect where increased absorptive capacity (on the basis of knowledge intensity) would make external linkages even more valuable could not be discerned. (shrink)

This paper begins with the observation that the contemporary eco-building movement in the UK focuses on technology with the principal aim of reducing carbon emissions and so combating climate change. While this focus may translate into justice for future generations, there seems markedly less regard for justice for others in intragenerational space. I analyse the eco-building movement's framings of sustainable development and sustainability, seeking out statements of equity via the criteria used for building materials selection. Closely defining equity as theory (...) and practice, analysis reveals that framings of sustainable development and sustainability in the eco-building movement vary considerably in their engagement with intragenerational equity. This begs the question of whether the movement has a shared political critique. There is a marked tendency to view discourses of environmental sustainability and social justice as distinct rather than mutually constitutive. I propose that the eco-building movement should engage in a politics of the common good (Sandel, 2010), contesting equity in the public domain. Wary of the reach of markets, the eco-building movement should debate not only the right way to distribute building materials and shelter but also the right way to value them. (shrink)

Social practices are widely regarded as the bedrock that turns one’s spade, beneath which no further justifications for action can be found. Followers of the later Wittgenstein might therefore be right to agree with Heideggerians and neo-pragmatists that philosophy’s traditional search for first principles should be abandoned. However, the concept of practices has played a very different role in the philosophy of Alasdair MacIntyre. Having once helped lead the assault on foundationalism in both moral and social philosophy, his elaboration of (...) an Aristotelian’ concept of practices in After Virtue has since led him to embrace a metaphysical teleology. This paper attempts to outline MacIntyre’s Aristotelian concept, and to identify its ethical, political and philosophical significance. (shrink)

Parts 1 to 3 of this paper explore the theoretical rationale and ethical significance of Alasdair MacIntyre’s twin distinctions between goods internal and external to practices and between goods of excellence and of effectiveness. Parts 4 and 5 then relate this analysis to his critique of contemporary institutions, compartmentalisation and management. My argument is that these concepts express a teleological theory of why and how goods should be ordered which, in refusing to identify practical rationality with institutional actuality and instead (...) differentiating between rival traditions, progresses beyond the theories of Aristotle and of other, past and present anglophone Aristotelians. (shrink)