A Summary of Michael Ruse's Darwin and Design

Michael Ruse's Darwin and Design: Science, Philosophy, Religion explains the history and philosophical arguments of the design metaphor of evolution. It recounts the historical uses of the metaphor from Plato to twentieth-century American science. Ruse explores the criticisms of the design metaphor and ultimately concludes that it is a beneficial term. The chief contribution of Darwin and Design is that it offers a clear understanding and comparison of the argument from design and the argument to design.     

论达尔文的最佳解释推理

科学研究需要正确的思维方法的指导,而最佳解释推理就是一种重要的思维方法。达尔文运用最佳解释推理论证通过自然选择而进化的理论最为成功,在《物种起源》中,达尔文以解释力、解释的一致性为基础,引用大量事实,充分比较了自然选择理论与上帝的独立创造说或神创论,符合最佳解释推理模型的评价标准。     

Resisting Explanation

Although explanation is widely regarded as an important concept in the study of rational inquiry, it remains largely unexplored outside the philosophy of science. This, I believe, is not due to oversight as much as to institutional resistance. In analytic philosophy it is basic that epistemic rationality is a function of justification and that justification is a function of argument. Explanation, however, is not argument nor is belief justification its function. I argue here that the task of incorporating explanation into the theory of rational inquiry poses a serious challenge to our basic concept of epistemic rationality as well as the a priori method of inquiry that still lies at the heart of analytic philosophy. Specifically, it pushes us toward a much stronger form of naturalism than is generally thought necessary, one in which argument and explanation are recognized as distinct and equally fundamental cognitive processes whose dynamic relationship is one of the central issues in the theory of rationality.     

SCIENCE AND THE FORTUNES OF NATURAL THEOLOGY: SOME HISTORICAL PERSPECTIVES

Abstract. The object is to examine strategies commonly used to heighten a sense of the sacred in nature. It is argued that moves designed to reinforce a concept of Providence have been the very ones to release new opportunities for secular readings. Several case studies reveal this fluidity across a sacred-secular divide. The irony whereby sacred readings of nature would graduate into the secular is also shown to operate in reverse as anti-providentialist strategies invited their own refutation. The analysis is used to support the claim that the sciences have put fewer constraints on religious belief than is generally assumed.     

Explanatory warrant for scientific realism

Nancy Cartwright relies upon an inference pattern known as inference to the best causal explanation (IBCE) to support a limited form of entity realism, according to which we are warranted in believing in entities that purportively cause observable effects. IBCE, as usually understood, is valid, even though all other forms of inference to the best explanation (IBE) are usually understood to be invalid. We argue that IBCE and IBE are in the same boat with respect to their ability to support realist conclusions. Either rule can be interpreted as valid, this is a matter of semantic convention. However, doing so deprives the rule of the empirical content the realist needs, requiring the realist to find independent warrant for a strong (theoretical or causal) premise. We then examine the proposed means of obtaining this warrant, and find them as inadequate in the case of IBCE as they are in the case of IBE.     

GOD OF THE GAPS OR THE GOD OF “DESIGN AND DOMINION”? RE-VISITING NEWTON'S THEOLOGY

Starting with Gottfried Leibniz, Isaac Newton's theology has often been caricatured as putting forward a “God of the gaps” argument for God's existence and continued involvement in the world. Peter Harrison has pointed out that this characterization of Newton's theology is “not entirely clear.” A closer look at Newton's letters and the drafts to the Opticks reveals that, rather than arguing God's providential ordering and care over the world, he takes these for granted and is reluctant to specify instances of this order and care based on his physical research. He certainly believes in gaps in mechanical causes but is more eager to fill those gaps with nonmechanical natural causes than with God. Further, his system does not exhibit the two most prevalent weaknesses attributed to “God of the gaps” theologies: (1) that by describing God as intervening in natural causes his skill as a designer is maligned and (2) that by describing the physical details of God's involvement in the world one puts too much weight on theories likely to be replaced as science advances. Newton avoids the former weakness because it is only God's masterfulness as designer that he ties in any way to his theories of the physical world. He avoids the latter because he never points to God as the direct cause of any specific physical processes. Newton hoped that his system would cause his readers to marvel not only at God's providence but also at humankind's inability to sufficiently understand it.     

Simplicity and probability in causal explanation

What makes some explanations better than others? This paper explores the roles of simplicity and probability in evaluating competing causal explanations. Four experiments investigate the hypothesis that simpler explanations are judged both better and more likely to be true. In all experiments, simplicity is quantified as the number of causes invoked in an explanation, with fewer causes corresponding to a simpler explanation. Experiment 1 confirms that all else being equal, both simpler and more probable explanations are preferred. Experiments 2 and 3 examine how explanations are evaluated when simplicity and probability compete. The data suggest that simpler explanations are assigned a higher prior probability, with the consequence that disproportionate probabilistic evidence is required before a complex explanation will be favored over a simpler alternative. Moreover, committing to a simple but unlikely explanation can lead to systematic overestimation of the prevalence of the cause invoked in the simple explanation. Finally, Experiment 4 finds that the preference for simpler explanations can be overcome when probability information unambiguously supports a complex explanation over a simpler alternative. Collectively, these findings suggest that simplicity is used as a basis for evaluating explanations and for assigning prior probabilities when unambiguous probability information is absent. More broadly, evaluating explanations may operate as a mechanism for generating estimates of subjective probability.     

Troubles with Theoretical Virtues: Resisting Theoretical Utility Arguments in Metaphysics

In this paper we examine theoretical utility arguments in metaphysics. While philosophers claim a procedural continuity with science when using such arguments, we argue that examining famous instances from the history of science expose their fundamental flaws. We find that arguments from theoretical utility invoke considerations that are not truth conducive and that justifications for claims that a theory possesses theoretical virtues often assume the truth of the theory such virtues are supposed to support. We conclude that theoretical utility arguments provide no epistemic grounds for metaphysical inquiry.     

The fine-grained metaphysics of artifactual and biological functional kinds

In this paper we consider the emerging position in metaphysics that artifact functions characterize real kinds of artifacts. We analyze how it can circumvent an objection by David Wiggins (Sameness and substance renewed, 2001, 87) and then argue that this position, in comparison to expert judgments, amounts to an interesting fine-grained metaphysics: taking artifact functions as (part of the) essences of artifacts leads to distinctions between principles of activity of artifacts that experts in technology have not yet made. We show, moreover, that our argument holds not only in the artifactual realm but also in biology: taking biological functions as (part of the) essences of organs leads to distinctions between principles of activity of organs that biological experts have not yet made. We run our argument on the basis of analyses of artifact and biological functions as developed in philosophy of technology and of biology, thus importing results obtained outside of metaphysics into the debate on ontological realism. In return, our argument shows that a position in metaphysics provides experts reason for trying to detect differences between principles of activities of artifacts and organs that have not been detected so far.     

Can the skepticism debate be resolved?

External world skeptics are typically opposed to admitting as evidence anything that goes beyond the purely phenomenal, and equally typically, they disown the use of rules of inference that might enable one to move from premises about the phenomenal alone to a conclusion about the external world. This seems to bar any a posteriori resolution of the skepticism debate. This paper argues that the situation is not quite so hopeless, and that an a posteriori resolution of the debate becomes possible once it is recognized that the skeptic holds overly defensive and ill-motivated positions vis-à-vis both evidence and inference, and that more reasonable ones are available. In stating these more reasonable positions, as well as in showing how they make possible an a posteriori resolution of the skepticism debate, the paper draws on the machinery of Bayesian epistemology.