In the Bayesian approach to quantum mechanics, probabilities—and thus quantum states—represent an agent’s degrees of belief, rather than corresponding to objective properties of physical systems. In this paper we investigate the concept of certainty in quantum mechanics. Particularly, we show how the probability-1 predictions derived from pure quantum states highlight a fundamental difference between our Bayesian approach, on the one hand, and Copenhagen and similar interpretations on the other. We first review the main arguments for the general claim that probabilities (...) always represent degrees of belief. We then argue that a quantum state prepared by some physical device always depends on an agent’s prior beliefs, implying that the probability-1 predictions derived from that state also depend on the agent’s prior beliefs. Quantum certainty is therefore always some agent’s certainty. Conversely, if facts about an experimental setup could imply agent-independent certainty for a measurement outcome, as in many Copenhagen-like interpretations, that outcome would effectively correspond to a preexisting system property. The idea that measurement outcomes occurring with certainty correspond to preexisting system properties is, however, in conflict with locality. We emphasize this by giving a version of an argument of Stairs [(1983). Quantum logic, realism, and value-definiteness. Philosophy of Science, 50, 578], which applies the Kochen–Specker theorem to an entangled bipartite system. (shrink)

It is essentially a truism that the natural sciences have little or no place for dogmatism; to the contrary, there is an underlying skepticism pervading all scientific propositions. Any philosophy which pretends to provide an adequate philosophy of science, should, it seems to me, exhibit epistemologically a corresponding skepticism. At the very least, such a philosophy should demonstrate a skepticism in its views of the “truth” of scientific statements.

We prove a Gleason-type theorem for the quantum probability rule using frame functions defined on positive-operator-valued measures, as opposed to the restricted class of orthogonal projection-valued measures used in the original theorem. The advantage of this method is that it works for two-dimensional quantum systems and even for vector spaces over rational fields—settings where the standard theorem fails. Furthermore, unlike the method necessary for proving the original result, the present one is rather elementary. In the case of a qubit, we (...) investigate similar results for frame functions defined upon various restricted classes of POVMs. For the so-called trine measurements, the standard quantum probability rule is again recovered. (shrink)

(2013). Disrespectful Care in the Treatment of Sickle Cell Disease Requires More Than Ethics Consultation. The American Journal of Bioethics: Vol. 13, No. 4, pp. 12-14. doi: 10.1080/15265161.2013.768857.

Any physical theory which seriously proposes that events in the future may be the efficient causes of events in the past certainly may be regarded—at least at first glance—as a rather revolutionary doctrine. In a recent issue of the Reviews of Modern Physics commemorating Niels Bohr's sixtieth birthday, and under the editorship of the latest Nobel Prize winner in physics, W. Pauli, there appeared such a theory—written by Bohr's former student, J. A. Wheeler and Wheeler's associate at Princeton, R. P. (...) Feynman. The title of their paper appears harmless enough: “Interaction with the Absorber as the Mechanism of Radiation.” It is one part of a more comprehensive three-part paper intended for later publication as a general constructive critique of classical field theory and of the theory of action at a distance as propounded by Schwarzschild and Fokker. (shrink)

A recent proposal by Dr. W. H. McCrae, cosmologist and mathematician, to the effect that decisions between such cosmogonies as those of Hoyle and of Gamow are experimentally impossible by virtue of a general cosmological indeterminacy principle, is here examined and elaborated upon. Some comments on the "antinomies" in Kant's "Critique of Pure Reason" are made in reference to this principle as well as to the Heisenberg indeterminacy principle. If McCrae's principle is accepted, we will have moved a long way (...) toward Kant's conclusion that a logically consistent understanding of an underlying "ultimate reality" is outside the confines of science--whatever one may think of Kant's own line of reasoning. (shrink)

It is true that Hegelian historicism has indeed led to a dominant ethos of moral relativism bound up with the belief that individual self-actualization is the highest value, thus creating a society that is, in the phrase of H. Tristram Engelhardt, Jr. “after God.” Nevertheless, this egocentric and nihilistic relativism exists alongside a robust and militant moral totalitarianism enforced by the modern clerisy of the media, multi-national corporations, and government bureaucrats, that is, a “managerial elite.” This article argues that the (...) transcendental idealism of Kant and the subsequent historicization of Kant’s dialectic by Hegel has served to reconceptualize the older, Baconian view of science, creating the idea that scientific progress is moving toward the goal of a future perfection of absolute rational unity. The a priori rational structure of reality that makes science possible is not a Platonic Ideal, but something that unfolds within history. This is what allowed Marx to conceive of dialectical materialism as a science, and this is what allows the managerial elite of the present to claim a scientific and objective basis for their programs while at the same time using the tools of historical and cultural criticism to relativize and historicize the claims of all competing moral and social “constructs.”. (shrink)

From the desire to find support and confirmation for our personal sensory observations, and from the human interest in sharing our experiences with others, there emerges a basic principle of scientific method: We demand the possibility of intelligible communication and agreement concerning individuals' sensory perceptions in particular and their experiences in general. This requirement is made both for the natural and social sciences. The raw material offered for logical organization must be capable of exhibiting an inter-subjective character—such material, or protocols, (...) must be acceptable in common to all concerned. And it must be acceptable for logical organization or systematization in some science. (shrink)

The philosopher who is interested in developments of modern physics may turn with some profit to an argument that has recently evolved between the late George Birkhoff and Hermann Weyl. Birkhoff and his associates have constructed a theory of relativity differing in various ways from Einstein's general theory. Weyl has offered a critical analysis of the Birkhoff theory along with a defense of the Einstein theory; and Birkhoff has presented his rebuttal to Weyl.

This article shows how descriptive imagery can be used to hijack evolved psychological instincts and prejudice the judgment of others, particularly in the legal and political domains. By mimicking the cues that represented threats to our ancestors, those wishing to color the perception of others can subtly trigger the affective responses that evolved to help navigate ancestral threats. When this happens, logic may be unseated in favor of deep-seated instinctual responses, often to a problematic degree. In this way, lawyers, politicians, (...) and activists, taking a page out of the playbook of novelists and other storytellers, can weaponize words, images, descriptions, and narratives to, often improperly, sway the opinions of others. (shrink)

Research is increasingly suggesting that human intuitions form the core of many laws. Laws, therefore, can serve as one potential testing ground for new theories about the content and structure of intuitions. Here the model of ownership psychology as an evolved cognitive adaptation is evaluated against long-standing features of property law.

This book explores the dramatic evolution of a feminist movement that mobilised to challenge a women’s prison system in crisis. Through in-depth historical research conducted in the Australian state of Victoria that spans the 1980s and 1990s, the authors uncover how incarcerated women have worked productively with feminist activists and community coalitions to expose, critique and resist the conditions and harms of their confinement. Resisting Carceral Violence tells the story of how activists—through a combination of creative direct actions, reformist lobbying (...) and legal challenges—forged an anti-carceral feminist movement that traversed the prison walls. This powerful history provides vital lessons for service providers, social justice advocates and campaigners, academics and students concerned with the violence of incarceration. It calls for a willingness to look beyond the prison and instead embrace creative solutions to broader structural inequalities and social harm. (shrink)

Recent accounts of the speed/accuracy relation for motor tasks have focused on the concept of motor output variability. We outline the advantages of this approach and the limitation of Plamondon's model in explaining movement error. We also examine and present complimentary data for rapid timing tasks. While these tasks do not meet the presented assumptions, the data still fit the model predictions.

This chapter summarises the results of the Krajina Project, which was established in 1998 to investigate the archaeological remains, material culture and continuing ethnographic legacy of this distinctive late medieval/early modern frontier society. The project has focused on an area in the north-west corner of Bosnia-Herzegovina, between Kladuŝa and Bihać, known as the Bihaćka Krajina. This was one of the last districts in the region to be conquered by the Ottoman state, not falling to the sultan's forces until the late (...) sixteenth century — a territorial high water mark. The ethnographic evidence provides significant insights into the continuing legacy of the Ottoman-Hapsburg frontier in the nineteenth and twentieth centuries. (shrink)

A 1562 world map printed in Venice opened with this grand claim: ‘Behold, kind readers, a new description of all the world, which is the most distinct, faithful, exact, and is consistent with the n...

This article evaluates the phenomenon of sexual reorientation therapy from the standpoint of Orthodox Christian theology. It is argued that homosexual desire is the product of the fall of mankind and cannot be considered “normal.” At the same time, however, reorientation therapies, whether secular or Christian, are inherently reductionistic and fail to address the underlying spiritual pathologies involved in homosexual desire. The purpose of therapeia in the Orthodox Church is the psycho-somatic transfiguration of the whole person into the image of (...) Christ, not merely the cessation of homosexual activity or the “reidentification” of one’s “lifestyle.”. (shrink)