Abstract Gene-selectionists define fundamental terms in non-standard ways. Genes are determinants of difference. Phenotypes are defined as a gene’s effects relative to some alternative whereas the environment is defined as all parts of the world that are shared by the alternatives being compared. Environments choose among phenotypes and thereby choose among genes. By this process, successful gene sequences become stores of information about what works in the environment. The strategic gene is defined as a set of gene tokens that combines (...) ‘actor’ tokens responsible for an effect with ‘recipient’ tokens whose replication is thereby enhanced. This set of tokens can extend across the boundaries of individual organisms, or other levels of selection, as these are traditionally defined. Content Type Journal Article Pages 1-19 DOI 10.1007/s10539-012-9315-5 Authors David Haig, Department of Organismic and Evolutionary Biology, Harvard University, 26 Oxford Street, Cambridge, MA 02138, USA Journal Biology and Philosophy Online ISSN 1572-8404 Print ISSN 0169-3867. (shrink)

August Weismann rejected the inheritance of acquired characters on the grounds that changes to the soma cannot produce the kind of changes to the germ-plasm that would result in the altered character being transmitted to subsequent generations. His intended distinction, between germ-plasm and soma, was closer to the modern distinction between genotype and phenotype than to the modern distinction between germ cells and somatic cells. Recently, systems of epigenetic inheritance have been claimed to make possible the inheritance of acquired characters. (...) I argue that the sense in which these claims are true does not challenge fundamental tenets of neo-Darwinism. Epigenetic inheritance expands the range of options available to genes but evolutionary adaptation remains the product of natural selection of ‘random’ variation. (shrink)

David Haig propounds and illustrates the unity of a radically revised set of definitions of the family of terms at the heart of philosophy of cognitive science and mind: information, meaning, interpretation, text, choice, possibility, cause. This biological re-grounding of much-debated concepts yields a bounty of insights into the nature of meaning and life. An interpreter is a mechanism that uses information in choice. The capabilities of the interpreter couple an entropy of inputs to an entropy of outputs (...) is dispelled by observation. The second entropy is dispelled. I propose that an interpreter’s response to inputs meaning of the information for the interpreter. In this conceptual framework, the mechanisms of interpreters provide the much-debated link between Shannon information and semantics. (shrink)

Organisms can be treated as optimizers when there is consensus among their genes about what is best to be done, but genomic consensus is often lacking, especially in interactions among kin because kin share some genes but not others. Grafen adopts a majoritarian perspective in which an individual’s interests are identified with the interests of the largest coreplicon of its genome, but genomic imprinting and recombination factionalize the genome so that no faction may predominate in some interactions among kin. Once (...) intragenomic conflicts are recognized, the individual organism can be conceptualized as an arbiter among competing interests within a collective. Organismal adaptation can be recognized without phenotypes being optimized. (shrink)

The germ track is the cellular path by which genes are transmitted to future generations whereas somatic cells die with their body and do not leave direct descendants. Transposable elements (TEs) evolve to be silent in somatic cells but active in the germ track. Thus, the performance of most bodily functions by a sequestered soma reduces organismal costs of TEs. Flexible forms of gene regulation are permissible in the soma because of the self‐imposed silence of TEs, but strict licensing of (...) transcription and translation is maintained in the germ track to control proliferation of TEs. Delayed zygotic genome activation (ZGA) and maternally inherited germ granules are adaptations that enhance germ‐track security. Mammalian embryos exhibit very early ZGA associated with extensive mobilization of retroelements. This window of vulnerability to retrotransposition in early embryos is an indirect consequence of evolutionary conflicts within the mammalian genome over postzygotic maternal provisioning. (shrink)

Organisms and their genomes are mosaics of features of different evolutionary age. Older features are maintained by ‘negative’ selection and comprise part of the selective environment that has shaped the evolution of newer features by ‘positive’ selection. Body plans and body parts are among the most conservative elements of the environment in which genetic differences are selected. By this process, well-trodden paths of development constrain and direct paths of evolutionary change. Structuralism and adaptationism are both vindicated. Form plays a selective (...) role in the molding of form. (shrink)

Concepts of cause, choice, and information are closely related. A cause is a choice that can be held responsible. It is a difference that makes a difference. Information about past causes and their effects is a valuable commodity because it can be used to guide future choices. Information about criteria of choice is generated by choosing a subset from an ensemble for ‘reasons’ and has meaning for an interpreter when it is used to achieve an end. Natural selection evolves interpreters (...) with ends. Surviving genes embody a textual record of past choices that had favorable outcomes. Consultation of these archives guides current choices. Purposive choice is well-informed difference making. (shrink)

Mitochondria exist in large numbers per cell. Therefore, the strength of natural selection on individual mtDNAs for their contribution to cellular fitness is weak whereas the strength of selection in favor of mtDNAs that increase their own replication without regard for cellular functions is strong. This problem has been solved for most mitochondrial genes by their transfer to the nucleus but a few critical genes remain encoded by mtDNA. Organisms manage the evolution of mtDNA to prevent mutational decay of essential (...) services mitochondria provide to their hosts. Bottlenecks of mitochondrial numbers in female germlines increase the homogeneity of mtDNAs within cells and allow intraorganismal selection to eliminate cells with low quality mitochondria. Mechanisms of intracellular “quality control” allow direct selection on the competence of individual mtDNAs. These processes maintain the integrity of mtDNAs within the germline but are inadequate to indefinitely maintain mitochondrial function in somatic cells. (shrink)

RNAs can do many things. They can store information, act in the world, and respond to the world. Because of these capabilities biologists have proposed a primordial ‘RNA world’ in which RNA, rather than DNA, performed the central role of replicator and repository of adaptive information. Deacon dismisses this hypothesis because replication is not about anything and because the structure of replicating molecules cannot contain information about the environment. I dispute both claims. An RNA and its opposite-sense complement represent each (...) other and, by two rounds of complementation, represent themselves. Although nucleic acid sequences do not change in response to their present environment, these sequences embody information about ancestral environments via the selective filtering of alternative sequences in those environments. Nucleic acid sequences are the textual record of what has worked in the past. (shrink)

Most eukaryotes possess many copies of rDNA. Organismal selection alone cannot maintain rRNA function because the effects of mutations in one rDNA are diluted by the presence of many other rDNAs. rRNA quality is maintained by processes that increase homogeneity of rRNA within, and heterogeneity among, germ cells thereby increasing the effectiveness of cellular selection on ribosomal function. A successful rDNA repeat will possess adaptations for spreading within tandem arrays by intranuclear selection. These adaptations reside in the non‐coding regions of (...) rDNA. Single‐copy genes are predicted to manage processes of intranuclear and cellular selection in the germline to maintain the quality of rRNA expressed in somatic cells of future generations. (shrink)

A gene is described as imprinted if its pattern of expression depends on whether it passed the previous generation in a male or female germ line. A recent paper(1) reports that imprinted genes have fewer and smaller introns than a control set of genes. The differences are striking but their interpretation is unclear. The loss of introns after a gene becomes imprinted is not sufficient to explain why imprinted genes have fewer introns than average, because related unimprinted genes also have (...) few introns. Similarly, small introns appear to be a property of chromosomal region rather than of imprinting status itself, because neighboring unimprinted genes also have small introns. (shrink)

Imprinted genes are predicted to affect interactions among relatives. Therefore, variant alleles at imprinted loci are promising candidates for playing a causal role in disorders of social behavior. The effects of imprinted genes evolved in the context of patterns of asymmetric relatedness that existed within social groups of our ancestors.

Transformations of Lamarckism is an edited volume arising from a workshop to commemorate the bicentenary of the publication of Philosophie Zoologique. The contributed chapters discuss the history of Lamarckism, present new developments in biology that could be considered to vindicate Lamarck, and argue for a revision, if not a revolution, in evolutionary theory. My review argues that twentieth and twenty-first century conceptions of Lamarckism can be considered a reaction to August Weismann’s uncompromising rejection of the inheritance of acquired characters in (...) the late nineteenth century. Weismann rejected the inheritance of acquired characters both as a proximate mechanism of heredity and as an ultimate cause of adaptation. I argue that Weismann’s proximate claim is still valid for the kind of mechanism that he had in mind but that the inheritance of acquired characters has come to refer to many different processes, some of which undoubtedly do occur. However, processes of physiological adaptation and adaptive plasticity, even if transgenerational, do not challenge Weismann’s claim about the ultimate causes of adaptation because these processes can be understood as evolving by natural selection. Finally, I discuss some of the emotional and aesthetic reasons why many find Lamarckism an attractive alternative to hard-core neo-Darwinism. (shrink)

Homologous centromeres compete for segregation to the secondary oocyte nucleus at female meiosis I. Centromeric repeats also compete with each other to populate centromeres in mitotic cells of the germline and have become adapted to use the recombinational machinery present at centromeres to promote their own propagation. Repeats are not needed at centromeres, rather centromeres appear to be hospitable habitats for the colonization and proliferation of repeats. This is probably an indirect consequence of two distinctive features of centromeric DNA. Centromeres (...) are subject to breakage by the mechanical forces exerted by microtubules and meiotic crossing‐over is suppressed. Centromeric proteins acting in trans are under selection to mitigate the costs of centromeric repeats acting in cis. Collateral costs of mitotic competition at centromeres may help to explain the high rates of aneuploidy observed in early human embryos. (shrink)

In the Sleeping Beauty problem, Beauty is woken once if a coin lands heads or twice if the coin lands tails but promptly forgets each waking on returning to sleep. Philosophers have divided over whether her waking credence in heads should be a half or a third. Beauty has centered beliefs about her world and about her location in that world. When given new information about her location she should update her worldly beliefs before updating her locative beliefs. When she (...) conditionalizes in this way, her credence in heads is a half before and after being told it is Monday. In applications of Dutch Book arguments to the Sleeping Beauty problem, the probability of a particular outcome has often been confounded with consequences of that outcome. Heads and tails are equally likely but twice as much is at stake if the coin falls tails because Beauty is fated to make the same choice twice. As a consequence, the possibility of tails should be given twice the weight of the possibility of heads when deciding whether to bet on heads even though heads and tails are equally likely. (shrink)

Proximate and ultimate causes in evolutionary biology have come to conflate two distinctions. The first is a distinction between immediate and historical causes. The second is between explanations of mechanism and adaptive function. Mayr emphasized the first distinction but many evolutionary biologists use proximate and ultimate causes to refer to the second. I recommend that ‘ultimate cause’ be abandoned as ambiguous.

Parts of the genome of a single individual can have conflicting interests, depending on which parent they were inherited from. One mechanism by which these conflicts are expressed in some taxa, including mammals, is genomic imprinting, which modulates the level of expression of some genes depending on their parent of origin. Imprinted gene expression is known to affect body size, brain size, and the relative development of various tissues in mammals. A high fraction of imprinted gene expression occurs in the (...) brain. Biologists including Hamilton, Trivers and Haig have proposed that this may explain some intrapersonal conflict in humans. This speculation amounts to an inference from conflict within the genome to conflict within the brain or mind. This is a provocative proposal, which deserves serious attention. In this paper I assess aspects of Haig’s version of the proposal. I argue, first, that the notion that intragenomic conflict predicts personal inconsistency should be rejected. Second, while it is unlikely that it credibly predicts sub-personal agents representing conflicting genetic interests, it is plausible that it predicts that the division of cognitive labour could be exploited to turn sub-systems into proxies for conflicting interests. (shrink)

David Haig’s From Darwin to Derrida scrutinizes a wide range of historical and contemporary issues embedded in the theory and practice of genetics—from genes to multilevel selection, from prokaryot...

This paper responds to the essay reviews by David Haig, Alan Love and Rachel Brown of my recently published book “Homology, Genes and Evolutionary Innovation”. The issues addressed here relate to: the notion of classes and individuals, issues of explanatory value of adaptive and structuralist explanations in evolutionary biology, the role of homology in evolutionary theory, the limits of a pluralist stance vis a vis alternative explanations of homology, as well as the question whether and to what extend (...) the perspective laid out in HGEI can be or should be transferred to other branches of study, like comparative behavioral biology. (shrink)

Truth: Its criteria and conditions is an in-depth critical-and-constructive inquiry in almost equal measure. The theories of the nature of empirical truth critically considered include two forms of the traditional correspondence theory; truth as appraisal; truth as identity of proposition and truth; en emotive theory of truth; P.F. Strawson s performative theory, and N. Rescher s novel theory of a coherentist criterion of truth. The constructive parts include an analysis of the concept of a fact, the meaning and uses of (...) true and false in empirical statements, together with the various sorts of conditions for their correct application; the appraisive/evaluative uses of true and false statements; and the performative-cum-cognitive uses of true empirical statements; and the conditions of the performative uses of true. A significant claim about the concept of truth is its indefinablity; albeit for quite different reasons from Gottlob Frege s reason based on his argument against the correspondence theory of truth.". (shrink)

What are the philosophical views of professional philosophers, and how do these views change over time? The 2020 PhilPapers Survey surveyed around 2000 philosophers on 100 philosophical questions. The results provide a snapshot of the state of some central debates in philosophy, reveal correlations and demographic effects involving philosophers' views, and reveal some changes in philosophers' views over the last decade.

John Locke is acknowledged to be one of the theoretical founders of the separation of church and state, a distinguishing feature of modern liberal democracies. Though Locke’s arguments for the merits of such separation have been subject to extensive investigation, his argument for its feasibility has remained relatively unexamined. This article argues that Locke was confident that separation of church and state can successfully be implemented in all times and places because of his epistemological and psychological insights that human beings (...) are moved to act by unease and that separating church and state removes the unease that causes religiously based political instability. We conclude by noting that Locke’s understanding of unease is foundational for his larger ambition to secure political liberty. (shrink)

The High Court is taking an increasingly important role in shaping the contours of democracy in Australia. In deciding fundamental democratic questions, does the Court pursue a consistent and overarching democratic vision? Or are its decisions essentially constrained by institutional and practical limitations? Judging Democracy, first published in 2000, addresses this question by examining the Court's recent decisions on human rights, citizenship, native title and separation of powers. It represents the first major political and legal examination of the Court's new (...) jurisprudence and the way it is influencing democracy and the institutions of governance in Australia. A foreword to the book has been written by the former Chief Justice of the High Court, Sir Anthony Mason. (shrink)

A leading political theorist’s groundbreaking defense of ideal conceptions of justice in political philosophy Throughout the history of political philosophy and politics, there has been continual debate about the roles of idealism versus realism. For contemporary political philosophy, this debate manifests in notions of ideal theory versus nonideal theory. Nonideal thinkers shift their focus from theorizing about full social justice, asking instead which feasible institutional and political changes would make a society more just. Ideal thinkers, on the other hand, question (...) whether full justice is a standard that any society is likely ever to satisfy. And, if social justice is unrealistic, are attempts to understand it without value or importance, and merely utopian? Utopophobia argues against thinking that justice must be realistic, or that understanding justice is only valuable if it can be realized. David Estlund does not offer a particular theory of justice, nor does he assert that justice is indeed unrealizable—only that it could be, and this possibility upsets common ways of proceeding in political thought. Estlund engages critically with important strands in traditional and contemporary political philosophy that assume a sound theory of justice has the overriding, defining task of contributing practical guidance toward greater social justice. Along the way, he counters several tempting perspectives, including the view that inquiry in political philosophy could have significant value only as a guide to practical political action, and that understanding true justice would necessarily have practical value, at least as an ideal arrangement to be approximated. Demonstrating that unrealistic standards of justice can be both sound and valuable to understand, Utopophobia stands as a trenchant defense of ideal theory in political philosophy. (shrink)

David Hume's Enquiry concerning Human Understanding is the definitive statement of the greatest philosopher in the English language. His arguments in support of reasoning from experience, and against the "sophistry and illusion"of religiously inspired philosophical fantasies, caused controversy in the eighteenth century and are strikingly relevant today, when faith and science continue to clash. The Enquiry considers the origin and processes of human thought, reaching the stark conclusion that we can have no ultimate understanding of the physical world, or (...) indeed our own minds. In either sphere we must depend on instinctive learning from experience, recognizing our animal nature and the limits of reason. Hume's calm and open-minded skepticism thus aims to provide a new basis for science, liberating us from the "superstition" of false metaphysics and religion. His Enquiry remains one of the best introductions to the study of philosophy, and his edition places it in its historical and philosophical context. (shrink)

Modern honor appears to be distinguished by two contradictory impulses, a neglect or even disdain of honor, and an ambition to elevate and promote it as dignity, self-esteem, and recognition. The article argues that these tensions can be traced to a foundational difference regarding the political importance of the passion of honor, evident in the seminal and contending formulations by Machiavelli and Hobbes. In recovering and articulating the bases of these competing modern conceptions of honor and tracing the influence of (...) their divergent trajectories, the article seeks to show the importance of honor for understanding contemporary politics. (shrink)

The zetetic turn in epistemology raises three questions about epistemic and zetetic norms. First, there is the relationship question: what is the relationship between epistemic and zetetic norms? Are some epistemic norms zetetic norms, or are epistemic and zetetic norms distinct? Second, there is the tension question: are traditional epistemic norms in tension with plausible zetetic norms? Third, there is the reaction question: how should theorists react to a tension between epistemic and zetetic norms? Drawing on an analogy to practical (...) philosophy, I develop a focal point view to resolve these motivating questions. On the focal point view, traditional epistemic norms and zetetic norms answer different types of normative questions. There is nevertheless a familiar type of evaluative tension between traditional epistemic norms and zetetic norms, but this tension is an unavoidable feature of the normative landscape and not a sign that traditional epistemic norms need revision. But if traditional epistemic norms are not zetetic norms, then in what sense is zetetic epistemology a project for epistemologists? I conclude by articulating a sense in which some nontraditional epistemic norms are zetetic norms, and in which zetetic epistemology is an important part of the study of theoretical rationality. (shrink)

By means of an example, shows the possibility of beliefs that are separately rational whilst together inconsistent.

One of the enduring concerns of moral philosophy is deciding who or what is deserving of ethical consideration. Much recent attention has been devoted to the "animal question" -- consideration of the moral status of nonhuman animals. In this book, David Gunkel takes up the "machine question": whether and to what extent intelligent and autonomous machines of our own making can be considered to have legitimate moral responsibilities and any legitimate claim to moral consideration. The machine question poses a (...) fundamental challenge to moral thinking, questioning the traditional philosophical conceptualization of technology as a tool or instrument to be used by human agents. Gunkel begins by addressing the question of machine moral agency: whether a machine might be considered a legitimate moral agent that could be held responsible for decisions and actions. He then approaches the machine question from the other side, considering whether a machine might be a moral patient due legitimate moral consideration. Finally, Gunkel considers some recent innovations in moral philosophy and critical theory that complicate the machine question, deconstructing the binary agent--patient opposition itself. Technological advances may prompt us to wonder if the science fiction of computers and robots whose actions affect their human companions could become science fact. Gunkel's argument promises to influence future considerations of ethics, ourselves, and the other entities who inhabit this world. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:Philosophy and Rhetoric 33.1 (2000) 74-93 [Access article in PDF] "Lord Over the Children of Pride": The Vaine-Glorious Rhetoric of Hobbes's Leviathan Haig Patapan Hobbes claimed in the Leviathan that he had, by "industrious meditation," discovered the Principles of Reason that would allow Commonwealths to be everlasting. He claimed, in other words, to have solved the political problem (1968, chap. 30, 378). All that was now required was (...) to have his work "fall in the hands of a Soveraign" who would, "in protecting the Publique teaching of it, convert this Truth of Speculation, into Utility of Practice" (chap. 31, 408). Accordingly, an important element of his political solution was the Leviathan itself, a work that would instruct the people in the Essential Rights of Sovereignty (chap. 30, 379). It would seem, then, that the Leviathan is an essential combination of these two aspects of Hobbes's endeavour; it is a work that is intended to reveal and persuade. Therefore, it is appropriate to evaluate his undertaking, not only in terms of its teaching, but also in the success of its rhetorical ambition. 1I argue in this paper that Hobbesian rhetoric is fundamentally determined by his political theory, in particular, by his discovery of the problem of vaine-glory, or pride. Pride poses a political problem because it is a passion that produces an unrealistic estimation of our abilities and therefore ultimately leads to deadly struggles and war. Hobbesian political science attempts to overcome the problem of pride by instituting a Leviathan, a lord over the children of pride. Once we see the nature of the political problem as Hobbes presents it and his proposed solution, the rhetorical character of Hobbes's writings becomes clearer.The extent to which Hobbes relies upon, and in crucial respects departs from, the traditional rhetoric that drew upon Artistotle's Rhetoric and subsequently Cicero's De Inventione and Quintilan's Institutio Oratoria is a complex question. 2 In this paper, I explore the rhetoric of the Leviathan, especially its first part, "On Man," to distinguish the Aristotelian and Ciceronian tradition from what I call Hobbes's Euclidean rhetoric. More [End Page 74] specifically, I argue that the structure and movement of part 1 of the Leviathan can be better understood when it is seen as a direct assault on human pride, a stripping away of all claims that may lead to vaine-glory. It is a step-by-step, Euclidean reductio that attempts to curb the readers' passion of glorying. This argument about the rhetorical character of the first part of the Leviathan has important theoretical consequences: it suggests that Hobbes's influential formulation of power, rights, and justice also had a profoundly rhetorical character.But how persuasive is Hobbes's rhetoric? For reasons noted above, this question goes to the heart of his political theory. The final part of this paper explores the efficacy of the Hobbesian rhetoric of pride and therefore of Hobbesian science. I argue that the rhetorical descent in the first part of the Leviathan, where the truth about human weakness is revealed to the proud, is simultaneously an ascent that acknowledges independence and self-sufficiency of human beings as "self-makers." Thus I argue that, rather than overcoming the problem of pride, Hobbesian political science re-founds it on the bases of rights and the promise of unlimited progress through science and commerce: Hobbes's rhetoric reformulated, but did not solve, the problem of pride. The problem of pride The importance of pride for Hobbes's psychology and political theory is evident from the title and frontispiece of the Leviathan. 3 The Leviathan, according to the Old Testament, is a creature of the Lord, set over the children of pride (Job 41:34). In Hobbes's reformulation, the Leviathan is an artificial body, made by the "Art of man," whose business is Salus Populi or the peoples' safety (1968, "Introduction," 81). Thus, from the beginning, the revolutionary flavour of Hobbes's enterprise is made evident: Man replaces God; pride is a problem of safety... (shrink)