Causal Decision Theory and Decision Instability

The problem of the man who met death in Damascus appeared in the infancy of the theory of rational choice known as causal decision theory. A straightforward, unadorned version of causal decision theory is presented here and applied, along with Brian Skyrms’ deliberation dynamics, to Death in Damascus and similar problems. Decision instability is a fascinating topic, but not a source of difficulty for causal decision theory. Andy Egan’s purported counterexample to causal decision theory, Murder Lesion, is considered; a simple response shows how Murder Lesion and similar examples fail to be counterexamples, and clarifies the use of the unadorned theory in problems of decision instability. I compare unadorned causal decision theory to previous treatments by Frank Arntzenius and by Jim Joyce, and recommend a well-founded heuristic that all three accounts can endorse. Whatever course deliberation takes, causal decision theory is consistently a good guide to rational action

The relationship between religious orientation, personality, and purpose in life among an older Methodist sample

The construct of purpose in life is a key notion discussed both by psychologists and by theologians. There are good theoretical reasons for linking the two constructs and arguing that religiosity could enhance the sense of purpose in life. The empirical evidence for the relationship is, however, not unambiguous. A major difficulty with earlier research concerns the problematic nature of defining both purpose in life and religiosity. The present study attempts to clarify the problem by employing new recently developed measures of both constructs. The Purpose in Life Scale (PILS) developed by Robbins and Francis (2000) provides a clear and unambiguous measure. The New Indices of Religious Orientation (NIRO) developed by Francis (2007) re-operationalise the three constructs of intrinsic, extrinsic and quest religiosity as three different ways of being religious. Both instruments were completed together with the Short-form Eysenck Personality Questionnaire Revised (EPQR-S) by 407 older Methodists in England. The data demonstrate that, after controlling for individual differences in personality, intrinsic religiosity is associated with a better sense of purpose in life, and both quest religiosity and extrinsic religiosity are unrelated to a sense of purpose in life

Harmony and Technology Enhanced Learning

New technologies offer rich opportunities to support education in harmony. In this chapter we consider theoretical perspectives and underlying principles behind technologies for learning and teaching harmony. Such perspectives help in matching existing and future technologies to educational purposes, and to inspire the creative re-appropriation of technologies

Historical Aspects of Post-1850 Cosmology

Cosmology as an exact physical science is of new date, but it has long roots in the past. This essay is concerned with four important themes in the history of cosmological thought which, if taken together, offer a fairly comprehensive account of some of the key developments that have led to the modern understanding of the universe. Apart from the first section, dealing with early views of curved space, it focuses on mainstream cosmology from the expanding universe about 1930 to the emergence of the standard big bang model in the 1960s. This development includes theories we would not today consider "mainstream," such as the steady state model of the universe. The last section outlines what might be called the prehistory of the concept of dark energy, that is, ideas that were discussed before dark energy was actually inferred from supernovae observations in the late 1990s.Comment: 22 pages; Lectures at XVIII Special Courses at Observatorio Nacional, Rio de Janeiro, Brazil, October 2013. AIP Proceedings (in press