The subjective Bayesian interpretation of quantum mechanics and Rovelli’s relational interpretation of quantum mechanics are both notable for embracing the radical idea that measurement outcomes correspond to events whose occurrence is relative to an observer. Here we provide a detailed study of their similarities and especially their differences.

A recent paper has given a lucid treatment of Bell’s notion of local causality within the framework of the relational interpretation of quantum mechanics. However, the authors went on to conclude that the quantum violation of Bell’s notion of local causality is no more surprising than a common cause. Here, I argue that this conclusion is unwarranted by the authors’ own analysis. On the contrary, within the framework outlined by the authors, I argue that far from saving the notion of (...) ‘locality’ from the grip of Bell’s theorem, the authors have deprived it of a meaningful definition. (shrink)

According to the subjective Bayesian interpretation of quantum mechanics, the instruments used to measure quantum systems are to be regarded as an extension of the senses of the agent who is using them, and quantum states describe the agent’s expectations for what they will experience through these extended senses. How can QBism then account for the fact that instruments must be calibrated before they can be used to ‘sense’ anything; some instruments are more precise than others; more precise instruments can (...) lead to discovery of new systems? Furthermore, is the agent ‘incoherent’ if they prefer to use a less precise instrument? Here we provide answers to these questions. (shrink)

A model of reality is called separable if the state of a composite system is equal to the union of the states of its parts, located in different regions of space. Spekkens has argued that it is trivial to reproduce the predictions of quantum mechanics using a separable ontological model, provided one allows for arbitrary violations of ‘dynamical locality’. However, since dynamical locality is strictly weaker than local causality, this leaves open the question of whether an ontological model for quantum (...) mechanics can be both separable and dynamically local. We answer this question in the affirmative, using an ontological model based on previous work by Deutsch and Hayden. Although the original formulation of the model avoids Bell’s theorem by denying that measurements result in single, definite outcomes, we show that the model can alternatively be cast in the framework of ontological models, where Bell’s theorem does apply. We find that the resulting model violates local causality, but satisfies both separability and dynamical locality, making it a candidate for the ‘most local’ ontological model of quantum mechanics. (shrink)

The article discussed the idea of skilled helping in relation to what has been put forward as practical theological facilitation. It has been argued that various helping relationships, amongst which the author refers to coaching, facilitation, and therapy has more in common than what differentiates them if epistemology is viewed as a unifying concept. As such the scope of practical theology in terms of the contexts and themes in which it might be involved is said to widen. The public dimension (...) of the organisational context, more so than the congregational context, has been put forward as an important habitus of practical-theological facilitation. The organisational involvement of the practical-theological facilitator in terms of professional-vocational skilled helping takes on an actual role through facilitation and other helping modalities. (shrink)

The study focused on the adventure-based experiential learning component of the North-West University peer helper training program. The aim of this study was to explore and describe a group of peer helpers’ subjective experiences of their participation in an ABEL program, with a focus on how these experiences related to the concept of grit. A total of 26 students at the North-West University, both male and female, participated in the study. A qualitative research approach with a case study research design (...) was used. The participants completed daily reflective diaries for the duration of the three-day ABEL program. After 3 months of performing their duties as peer helpers, the same individuals participated in focus group interviews. Themes were identified through inductive analysis and discussed regarding their relevance to the concept of grit. The main themes that emerged from both phases of data collection included intra-, inter-, and transpersonal/transcendent aspects, within which participants regularly referred to elements of grit. It was concluded that ABEL, due to its unique nature and demands, provides an ideal mechanism for the facilitation of personal growth on various levels. More specifically, through its clear association with the improvement and/or development of participants’ grit, it could equip these students to be more effective in their role as peer helpers. (shrink)

While it is well-established that poverty and disease are intimately connected, the nature of this connection and the role of poverty in disease causation remains contested in scientific and social studies of disease. Using the case of HIV/AIDS in South Africa and drawing on a theoretically grounded analysis, this paper reconceptualises disease and poverty as ontologically entangled. In the context of the South African HIV epidemic, this rethinking of the poverty-disease dynamic enables an account of how social forces such as (...) poverty become embodied in the very substance of disease to produce ontologies of HIV/AIDS unique to South Africa. (shrink)

The discovery of a new homonin species called Homo naledi evoked unprecedented interest, even outside the scientific disciplines who are researching extinct homonin species. The reason for this is that Prof. Lee Berger, attached to the University of the Witwatersrand and his team, known as the Rising Star-expedition, came to the conclusion that the fossils that were discovered in the Dinaledi cave room in Sterkfontein outside Johannesburg in 2013, were placed there deliberately. The theory postulates the possibility of symbolic or (...) ritual behaviour by a species that lived and later became extinct approximately 1 to 2 million years ago. If this is indeed the case, it also offers theologians the opportunity to join the conversation with regard to the evolvement of our spirituality and religiousness. This article is an attempt to render a contribution, with the data available to us, about the value of the prehistoric signs of spirituality with specific reference to the so-called cemetery theory. Together with this, other usable theories will be employed to consider the possible signs of ritual and symbolic behaviour by Homo naledi. The condition for a meaningful discussion about the evolvement of our spirituality and religiousness is that epistemological contours be clearly drawn. With the first part of the article these contours are drawn and with the second part the possible implications of the cemetery theory are reviewed. (shrink)

In recent works, Časlav Brukner and Jacques Pienaar have raised interesting objections to the relational interpretation of quantum mechanics. We answer these objections in detail and show that, far from questioning the viability of the interpretation, they sharpen and clarify it.

‘The Final “Thank You”’ uses the work of Jacques Derrida and Friedrich Nietzsche to think the occasion of the 1995 rugby World Cup, hosted by the newly democratic South Africa. This paper deploys Nietzsche's Zarathustra to critique how a figure such as Nelson Mandela is understood as a ‘Superman’ or an ‘Overhuman’ in the moment of political transition. The philosophical focus of the paper, however, turns on the ‘thank yous’ exchanged by the white South African rugby captain, François Pienaar, (...) and the black president at the event of the Springbok victory. It is the value, and the proximity and negation, of the ‘thank yous’ – the relation of one to the other – that constitutes the core of the article.1. (shrink)