Biological evolution provides a creative fount of complex and subtle adaptations, often surprising the scientists who discover them. However, because evolution is an algorithmic process that transcends the substrate in which it occurs, evolution’s creativity is not limited to nature. Indeed, many researchers in the field of digital evolution have observed their evolving algorithms and organisms subverting their intentions, exposing unrecognized bugs in their code, producing unexpected adaptations, or exhibiting outcomes uncannily convergent with ones in nature. Such stories routinely reveal (...) creativity by evolution in these digital worlds, but they rarely fit into the standard scientific narrative. Instead they are often treated as mere obstacles to be overcome, rather than results that warrant study in their own right. The stories themselves are traded among researchers through oral tradition, but that mode of information transmission is inefficient and prone to error and outright loss. Moreover, the fact that these stories tend to be shared only among practitioners means that many natural scientists do not realize how interesting and lifelike digital organisms are and how natural their evolution can be. To our knowledge, no collection of such anecdotes has been published before. This paper is the crowd-sourced product of researchers in the fields of artificial life and evolutionary computation who have provided first-hand accounts of such cases. It thus serves as a written, fact-checked collection of scientifically important and even entertaining stories. In doing so we also present here substantial evidence that the existence and importance of evolutionary surprises extends beyond the natural world, and may indeed be a universal property of all complex evolving systems. (shrink)

The notion of a "person" is in deep philosophical trouble. And this has posed a deepening crisis for believers: Christian beliefs are, after all, irreducibly about persons. In response to this situation, Prust proposes a new way to reason about persons, one based on identifying persons as characters of action. Employing a phenomenology of action he calls "character logic," he develops a powerful new tool for thinking through some of the intractable dilemmas that have long befuddled belief: - Can we (...) avoid being arbitrary and parochial in claiming that God is the only source of moral value? - Can we reconcile natural evil in the world with God's absolute power? - Can we continue to honor the historicity of faith-based claims in the face of critical history? - Can our personal life be eternal when neither timeless nor everlasting life is conceivable? - Can we accept our personal mortality and still affirm our destiny as eternal? Wholeness: The Character Logic of Christian Belief argues that character logic shows us a reasonable way to think about persons, one that puts theology on a new footing and gives affirmative answers to all these questions! (shrink)

A selection of speeches and essays from the author's second decade as president of Yale University.

This brief paperback is designed for symbolic/formal logic courses. It features the tree method proof system developed by Jeffrey. The new edition contains many more examples and exercises and is reorganized for greater accessibility.

Richard Jeffrey is beyond dispute one of the most distinguished and influential philosophers working in the field of decision theory and the theory of knowledge. His work is distinctive in showing the interplay of epistemological concerns with probability and utility theory. Not only has he made use of standard probabilistic and decision theoretic tools to clarify concepts of evidential support and informed choice, he has also proposed significant modifications of the standard Bayesian position in order that it provide a (...) better fit with actual human experience. Probability logic is viewed not as a source of judgment but as a framework for explaining the implications of probabilistic judgments and their mutual compatability. This collection of essays spans a period of some 35 years and includes what have become some of the classic works in the literature. There is also one completely new piece, while in many instances Jeffrey includes afterthoughts on the older essays. (shrink)

"[This book] proposes new foundations for the Bayesian principle of rational action, and goes on to develop a new logic of desirability and probabtility."—Frederic Schick, _Journal of Philosophy_.

One of our most brilliant evolutionary biologists, Richard Lewontin has also been a leading critic of those--scientists and non-scientists alike--who would misuse the science to which he has contributed so much. In The Triple Helix, Lewontin the scientist and Lewontin the critic come together to provide a concise, accessible account of what his work has taught him about biology and about its relevance to human affairs. In the process, he exposes some of the common and troubling misconceptions that misdirect (...) and stall our understanding of biology and evolution.The central message of this book is that we will never fully understand living things if we continue to think of genes, organisms, and environments as separate entities, each with its distinct role to play in the history and operation of organic processes. Here Lewontin shows that an organism is a unique consequence of both genes and environment, of both internal and external features. Rejecting the notion that genes determine the organism, which then adapts to the environment, he explains that organisms, influenced in their development by their circumstances, in turn create, modify, and choose the environment in which they live.The Triple Helix is vintage Lewontin: brilliant, eloquent, passionate, and deeply critical. But it is neither a manifesto for a radical new methodology nor a brief for a new theory. It is instead a primer on the complexity of biological processes, a reminder to all of us that living things are never as simple as they may seem. (shrink)

The finding that women are attracted to men older than themselves whereas men are attracted to relatively younger women has been explained by social psychologists in terms of economic exchange rooted in traditional sex-role norms. An alternative evolutionary model suggests that males and females follow different reproductive strategies, and predicts a more complex relationship between gender and age preferences. In particular, males' preferences for relatively younger females should be minimal during early mating years, but should become more pronounced as the (...) male gets older. Young females are expected to prefer somewhat older males during their early years and to change less as they age. We briefly review relevant theory and present results of six studies testing this prediction. Study 1 finds support for this gender-differentiated prediction in age preferences expressed in personal advertisements. Study 2 supports the prediction with marriage statistics from two U.S. cities. Study 3 examines the cross-generational robustness of the phenomenon, and finds the same pattern in marriage statistics from 1923. Study 4 replicates Study 1 using matrimonial advertisements from two European countries, and from India. Study 5 finds a consistent pattern in marriages recorded from 1913 through 1939 on a small island in the Philippines. Study 6 reveals the same pattern in singles advertisements placed by financially successful American women and men. We consider the limitations of previous normative and evolutionary explanations of age preferences and discuss the advantages of expanding previous models to include the life history perspective. (shrink)

The Abrahamic faiths—Judaism, Christianity, and Islam—have bequeathed to the world a rich religious and cultural heritage which has been enormously influential through the centuries up to the present. While this is easily evident in the modern practices of these monotheisms, it is also profoundly present in the development of their diverse intellectual traditions with theological and philosophical insights and analyses seeking to understand and explain the nature of the presence of the divine to human beings. The present collection of essays (...) by a wide array of North American scholars provides a dozen studies of language, discourse, debate, and reasoning with a focus on theological and philosophical issues central to these three traditions that commonly call Abraham their human and/or spiritual father. Collectively these essays represent a dialogue among those who work at crossroads of theology, philosophy, history, language, and religion. Their dialogue adds to the growing library of works that seek to highlight collaboration and common ground between these religious and philosophical traditions. The dialogue is multi-directional, taking place within various religions and philosophical perspectives, as well as between religion, theology, and philosophy. It is also multi-purpose in that it seeks to transcend the mere theoretical, and to reveal the concrete; the thinkers, philosophers, and theologians discussed in these essays were deeply concerned with mutual understanding and peaceful co-existence, a goal that has become even more desirable in this post-9/11 world. (shrink)

Following in the fashion of Stephen Jay Gould and Peter Medawar, one of the world's leading scientists examines how "pure science" is in fact shaped and guided by social and political needs and assumptions.

Excerpt from The Psychological Aspects of Christian Experience Continued observation of the various methods of religious instruction has brought upon me a conviction that grows stronger as the years go by, that there must be, as Francis Peabody says, a new expansion of the range of studies appropri ate to the teachers of religion. There ought to be a far deeper study of the psychology of reli gion. The appeal to the impulses and emotions, so prevalent in the methods of (...) some teachers, is far behind twentieth century enlightenment. It was foreign to the methods of our Saviour. He taught men. He did not frighten them into ao tion, neither entice them. He instructed their minds in truth. Ye shall know the truth and the truth shall make you free. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works. (shrink)

Then, in 1960, Carnap drew up a plan of articles for Studies in Inductive Logic and Probability — a surrogate for Volume II of the ...

In this paper I discuss logic from a naturalist point of view, characterizing it as those shared patterns of thought which are socially selected from among the various patterns of thought to which we are naturally inclined. Drawing on Evans-Pritchard's anthropology. I discuss a particular example of Zande thought. I argue that Evans-Pritchard's and Timm Triplett's analyses of this example make the mistake of applying Western logic to Zande beliefs and thus find a contradiction. I argue that from the naturalistic (...) point of view. Zande logic is different from Western logic and that there is no contradiction in Zande thought. (shrink)

’Ethical codes of conduct are superficial and distracting answers to the question of how to promote ethical behaviour in corporate life.’The author is Principal Lecturer in the Department of Business Studies at Manchester Metropolitan University.

After a very brief introduction, Davidson begins with an informed and detailed account of the views of Aristotle and his major commentators, whose writings had enormous influence on the development of the medieval traditions. Davidson's account is supplemented with a critical exposition of the relevant teachings from the Plotiniana Arabica, from al-Kindi, and from a treatise on the soul attributed to Porphyry in the Arabic tradition. Impressive as all this is, it is simply stage setting for Davidson's detailed accounts of (...) the doctrines and arguments of al-Farabi, Avicenna, and Averroes. (shrink)

A powerful movement is afoot to create a national computerized system of health records. Advocates claim it could save the health delivery system billions of dollars and improve the quality of health services. According to Lawrence Gostin, a leading commentator on privacy and health records, this new infrastructure is “already under way and [has] an aura of inevitability.” When it is in place, almost any information that is viewed as relevant to a decision in the health care delivery system would (...) be available to a large and yet undetermined number of individuals. The transformation of the collection and communication of health information from texts housed by health care providers and facilities to data electronically transmitted through networks of linked computers has significant implications for confidentiality and for data collection in scientific research. The best evidence clearly indicates that most people in the United States consider confidentiality for health information important and worry that the increased computerization of health records will result in inappropriate disclosure. (shrink)

A powerful movement is afoot to create a national computerized system of health records. Advocates claim it could save the health delivery system billions of dollars and improve the quality of health services. According to Lawrence Gostin, a leading commentator on privacy and health records, this new infrastructure is “already under way and [has] an aura of inevitability.” When it is in place, almost any information that is viewed as relevant to a decision in the health care delivery system would (...) be available to a large and yet undetermined number of individuals. The transformation of the collection and communication of health information from texts housed by health care providers and facilities to data electronically transmitted through networks of linked computers has significant implications for confidentiality and for data collection in scientific research. The best evidence clearly indicates that most people in the United States consider confidentiality for health information important and worry that the increased computerization of health records will result in inappropriate disclosure. (shrink)

Within evolutionary biology a distinction is frequently made between proximate and ultimate causes. One apparently plausible interpretation of this dichotomy is that proximate causes concern processes occurring during the life of an organism while ultimate causes refer to those processes (particularly natural selection) that shaped its genome. But ultimate causes are not sought through historical investigations of an organisms lineage. Rather, explanations referring to ultimate causes typically emerge from functional analyses. But these functional analyses do not identify causes of any (...) kind, much less ultimate ones. So-called ultimate explanations are not about causes in any sense resembling those of proximate explanations. The attitude, implicit in the term ultimate cause, that these functional analyses are somehow superordinate to those involving proximate causes is unfounded. Ultimate causes are neither ultimate nor causes. (shrink)

Modernity has made “person” a problematic term. By tracing the etymology of several common words whose origin pre-dates the scientific revolution – “intend,” “know,” “moment,” “deliberate,” and “true” – we can discern some of the sensibilities upon which a systematic recovery of the personal might best be based.