Steven Pinker has said that one of the most important questions humans can ask of themselves is whether moral progress has occurred or is likely to occur. Buchanan and Powell here address that question, in order to provide the first naturalistic, empirically-informed and analytically sophisticated theory of moral progress--explaining the capacities in the human brain that allow for it, the role of the environment, and how contingent and fragile moral progress can be.

Moral thinking pervades our practical lives, but where did this way of thinking come from, and what purpose does it serve? Is it to be explained by environmental pressures on our ancestors a million years ago, or is it a cultural invention of more recent origin? In The Evolution of Morality, Richard Joyce takes up these controversial questions, finding that the evidence supports an innate basis to human morality. As a moral philosopher, Joyce is interested in whether (...) any implications follow from this hypothesis. Might the fact that the human brain has been biologically prepared by natural selection to engage in moral judgment serve in some sense to vindicate this way of thinking--staving off the threat of moral skepticism, or even undergirding some version of moral realism? Or if morality has an adaptive explanation in genetic terms--if it is, as Joyce writes, "just something that helped our ancestors make more babies"--might such an explanation actually undermine morality's central role in our lives? He carefully examines both the evolutionary "vindication of morality" and the evolutionary "debunking of morality," considering the skeptical view more seriously than have others who have treated the subject.Interdisciplinary and combining the latest results from the empirical sciences with philosophical discussion, The Evolution of Morality is one of the few books in this area written from the perspective of moral philosophy. Concise and without technical jargon, the arguments are rigorous but accessible to readers from different academic backgrounds. Joyce discusses complex issues in plain language while advocating subtle and sometimes radical views. The Evolution of Morality lays the philosophical foundations for further research into the biological understanding of human morality. (shrink)

Despite the widespread use of the notion of moral intuition, its psychological features remain a matter of debate and it is unclear why the capacity to experience moral intuitions evolved in humans. We first survey standard accounts of moral intuition, pointing out their interesting and problematic aspects. Drawing lessons from this analysis, we propose a novel account of moral intuitions which captures their phenomenological, mechanistic, and evolutionary features. Moral intuitions are composed of two elements: an evaluative mental state and a (...) feeling of rightness (FOR). We illustrate the phenomenology of the FOR with examples of non-moral and moral cases, and provide a biological and mechanistic account: the emergence of human reasoning capacities created a need for the co-evolution of a psychological system producing the feeling of rightness (the FORs). This system is triggered when we experience conflicting evaluations. The FORs renders evaluations resulting from rational deliberation less compelling than the evaluations produced by simple evolved systems. It thus facilitates optimal decision-making, preventing excessive interference by rational deliberation. Our account sheds light on why moral intuitions are so frequently experienced and why they are so compelling and resistant to argument. In addition, the account fuels interesting speculations about common metaethical intuitions. (shrink)

Here, in textbook style, is a concise biological account of the evolution of morality. It addresses morality on three levels: moral outcomes (behavioral genetics), moral motivation or intent (psychology and neurology), and moral systems (sociality). The rationale for teaching this material is addressed in Allchin (2009). Classroom resources (including accompanying images and video links) and a discussion of teaching strategies are provided online at: http://EvolutionOfMorality.net.

In The Evolution of Moral Progress Allen Buchanan and Russell Powell advance an evolutionary explanation of moral progress by morality becoming more ‘inclusivist’. We are prepared to accept this explanation as far as it goes, but argue that it fails to explain how morality can become inclusivist in the fuller sense they intend. In fact, it even rules out inclusivism in their intended sense of moral progress, since they believe that human altruism and prosocial attitudes are essentially (...) parochial. We also respond to their charge that the possibility of moral enhancement by biomedical means that we have defended in numerous publications assumes that moral attitudes are biologically hard‐wired to an extent that implies that they are resilient to the influence of cognitive or cultural factors. Quite the contrary, we think they are more open to such influence than they seem to do. (shrink)

Teaching mathematics and improving mathematics competence are pending subjects within our educational system. The PEIM (Programa Evolutivo Instruccional para Matemáticas), a constructivist intervention program for the improvement of mathematical performance, affects the different agents involved in math learning, guaranteeing a significant improvement in students’ performance. The program is based on the following pillars: (a) students become the main agents of their learning by constructing their own knowledge; (b) the teacher must be the guide to facilitate and guarantee such a construction (...) by being a great connoisseur of the fundamental aspects of the development of the child’s mathematical thinking; (c) the mathematical contents must be sequenced in terms of the complexity and significance for the student as well as contextualized at all times; and (d) the classroom must have a constructivist climate highlighting cooperative work among students. The implementation of PEIM along with the empirical evaluation conducted in several centers in Madrid and Zaragoza (Spain) confirm how students improve their mathematical competence. Both first- and second-grade students in elementary education were far more effective in solving problems, highlighting the use of more advanced strategies in their resolution and a lower incidence of conceptual errors. Moreover, it was possible to verify how the students proving greater difficulty, experienced an evolution in learning similarly to those who did not present it. The program provides customized education to allow the teacher to know at all times how he should be more influential on the students’ learning through mathematical profiles. Both teaching practice and teachers were observed, being that of the experimental group more prone to analyzing processes and allowing the construction of knowledge by students, due to their psycho-developmental training. As a result, we found several improvements through the implementation of the program that may serve, for upcoming years, as a basis for the necessary changes in the teaching of mathematics. (shrink)

Donald Broom argues that morality and the central components of religion are of great value, and presents two central ideas. He asserts that morality has a biological foundation and has evolved as a consequence of natural selection, and that religions are essentially the structures supporting morality. Many philosophers and theologians write about morality and its origins without reference to biological processes such as evolution. Likewise, biologists discuss phenomena of importance to human morality and religion (...) without taking account of the thoughts of others on these subjects. (shrink)

A dorsalization mechanism is a good candidate for the evolutionary origin of the isocortex, producing a radial and tangential expansion of the dorsal pallium (and perhaps other structures that acquired a cortical phenotype). Evidence suggests that a large part of the dorsal ventricular ridge (DVR) of reptiles and birds derives from the embryonic ventral pallium, whereas the isocortex possibly derives mostly from the dorsal pallium. In early mammals, the development of olfactory-hippocampal associative networks may have been pivotal in facilitating the (...) selection of a larger and more complex dorsal pallium which received both collothalamic and lemnothalamic sensory information. Finally, although it is not clear exactly when mammalian brain expansion began, fossil evidence indicates that this was a late event in mammaliaform evolution. (shrink)

Given the evolution of the public health (PH) and the changes from the phenomenon of globalization, this area has encountered new ethical challenges. In order to find a coherent approach to address ethical issues in PH policy, this study aimed to identify the evolution of public health ethics (PHE) frameworks and the main moral values and norms in PH practice and policy. According to the research questions, a systematic search of the literature, in English, with no time limit (...) was performed using the main keywords in databases Web of Science (ISI) and PubMed. Finally, the full text of 56 papers was analyzed. Most of the frameworks have common underpinning assumptions and beliefs, and the need to balance PH moral obligation to prevent harm and health promotion with respect for individual autonomy has been specified. As such, a clear shift from liberal values in biomedical ethics is seen toward the community’s collective values in PHE. The main moral norms in PH practice and policy included protecting the population against harm and improving PH benefits, utility and evidenced-based effectiveness, distributive justice and fairness, respect for all, privacy and confidentiality, solidarity, social responsibility, community empowerment and participation, transparency, accountability and trust. Systematic review of PHE frameworks indicates utilization of the aforementioned moral norms through an practical framework as an ethical guide for action in the PH policy. The validity of this process requires a systematic approach including procedural conditions. (shrink)

The prospect of replication of human beings through genetic manipulation has engendered one of the most controversial debates about reproduction in our society. Ideology is clearly influencing the direction of research and legislation on human cloning, which may present one of the greatest existential challenges to the meaning of creation. In this article, I argue that, in view of the possibility that human cloning and other emerging technologies could enhance physical and cognitive abilities, there is a need for a different (...) way of thinking about life, new technologies and creation. New scientific discoveries require a shift in the way psychology takes responsibility to help individuals and society. Today, psychology needs to follow the progress that humans are taking toward a transhuman stage of development as a transition to a later posthuman stage. (shrink)

The causal premise of the evolutionary debunking argument contends that human moral beliefs are explained by the process of natural selection. While it is universally acknowledged that such a premise is fundamental to the debunker’s case, the vast majority of philosophers focus instead on the epistemic premise that natural selection does not track moral truth and the resulting skeptical conclusion. Recently, however, some have begun to concentrate on the causal premise. So far, the upshot of this small but growing literature (...) has been that the causal premise is likely false due to the seemingly persuasive evidence that our moral beliefs are in fact not the result of natural selection. In this paper, I argue that this view is mistaken. Specifically, I advocate the Innate Biases Model, which contends that there is not only compelling evidence for an evolved cognitive capacity for acquiring norms but also for the existence of an evolutionarily instilled set of cognitive biases that make it either more or less likely that we adopt certain moral beliefs. (shrink)

Moral norms are the rules of morality, those that people actually follow, and those that we feel people ought to follow, even when they don’t. Historically, the social sciences have been primarily concerned with describing the many forms that moral norms take in various cultures, with the emerging implication that moral norms are mere arbitrary products of culture. Philosophers, on the other hand, have been more concerned with trying to understand the nature and source of rules that all cultures (...) ought to follow, with relatively little regard for what people actually do. The tension between the two approaches has to do with whether there are any standards higher than the whims of culture in determining right and wrong. Typically, the social sciences say “no”, pointing at the diversity of moral beliefs. Most philosophers (along with people of moral conviction) feel that there must be some deeper source of morality than the trends and fads of culture. Unfortunately, the nature and source of such standards has remained something of a mystery. Recent work on the evolution of norms has changed this picture dramatically. (shrink)

In this paper we argue that there is much to learn about “wild justice” and the evolutionary origins of morality – behaving fairly – by studying social play behavior in group-living mammals. Because of its relatively wide distribution among the mammals, ethological investigation of play, informed by interdisciplinary cooperation, can provide a comparative perspective on the evolution of ethical behavior that is broader than is provided by the usual focus on primate sociality. Careful analysis of social play reveals (...) rules of engagement that guide animals in their social encounters. Because of its significance in development, play may provide a foundation of fairness for other forms of cooperation that are advantageous to group living. Questions about the evolutionary roots of cooperation, fairness, trust, forgiveness, and morality are best answered by attention to the details of what animals do when they engage in social play – how they negotiate agreements to cooperate, to forgive, to behave fairly, and to develop trust. We consider questions such as why play fairly? Why did play evolve as it has? Does “being fair” mean being more fit? Do individual variations in play influence an individual’s reproductive fitness? Can we use information about the foundations of moral behavior in animals to help us understand ourselves? We conclude that there is likely to be strong selection for cooperative fair play because there are mutual benefits when individuals adopt this strategy and group stability may also be fostered. Numerous mechanisms have evolved to facilitate the initiation and maintenance of social play, to keep others engaged, so that agreeing to play fairly and the resulting benefits of doing so can be readily achieved. (shrink)

There is an alternative to the type of moral standing that hypothetically supervenes on other, base or subvenient, properties. Attributed moral standing results when people who have a naturally selected belief that they are worthy of moral consideration negotiate with others with the aim of being acknowledged as having moral standing and are successful. They could successfully negotiate with people who possessed supervenient moral standing. In a hypothetical evolutionary competition with the latter, they would replace them entirely. The result would (...) be a moral community that excludes animals but that includes human infants. Membership in the moral community ends up being what it would be if moral standing supervened on the property of being human. The supervenience doctrine is also criticized on other grounds. (shrink)

This chapter contains sections titled: Setting the Task The Moral Brain The First Layer: Kin Selection The Second Layer: Reciprocal Altruism A Third Layer: Indirect Reciprocity A Fourth Layer: Cultural Group Selection A Fifth Layer: The Moral Emotions Conclusion: From Moral Grammar to Moral Systems.

The retina pigment epithelium (RPE) is a highly specialised epithelium that serves as a multifunctional and indispensable component of the vertebrate eye. Although a great deal of attention has been paid to its transdifferentiation capabilities and its ancillary functions in neural retina development, little is known about the molecular mechanisms that specify the RPE itself. Recent advances in our understanding of the genetic network that controls the progressive specification of the eye anlage in vertebrates have provided some of the initial (...) cues to the mechanisms responsible for RPE patterning. Here, we have outlined many recent findings that suggest that a limited number of transcription factors, including Otx2, Mitf and Pax6 and a few signalling cascades, are the elements required for the onset of RPE specification in vertebrates. Furthermore, using this information and the data available on the specification of the pigmented cells of primitive chordates, we have ventured some hypotheses on the origin of RPE cells during evolution. BioEssays 26:766–777, 2004. © 2004 Wiley Periodicals, Inc. (shrink)

According to most Evolutionary Psychologists, human moral attitudes are rooted in cognitive modules that evolved in the Stone Age to solve problems of social interaction. A crucial component of their view is that such cognitive modules remain unchanged since the Stone Age, and I question that here. I appeal to evolutionary rollback, the phenomenon where an organ becomes non-functional and eventually atrophies or disappears—e.g. cave-dwelling fish losing their eyes. I argue that even if cognitive modules evolved in the Stone Age (...) to solve problems of social interaction, conditions since then have favoured rollback of those modules. This is because there are institutions that solve those problems—e.g. legal systems. Moreover, evidence suggests that where external resources are available to perform cognitive tasks, humans often use them instead of internal ones. In arguing that Stone Age cognitive modules are unchanged, Evolutionary Psychologists say that evolutionary change is necessarily slow, and that there is high genetic similarity between human populations worldwide. I counter-argue that what is necessarily slow is the building-up of complex mechanisms. Undoing this can be much quicker. Moreover, rollback of cognitive mechanisms need not require any genetic change. Finally, I argue that cross-cultural similarity in some trait need not be rooted in genetic similarity. This is not intended as decisive evidence that rollback has occurred. To finish, I suggest ways we might decide whether moral attitudes are likely to be rooted in unchanged Stone Age modules, given that I have argued that cross-cultural similarity is not enough. (shrink)

Designing an ontology that meets the needs of end-users, e.g., a medical team, is critical to support the reasoning with data. Therefore, an ontology design should be driven by the constant and efficient validation of end-users needs. However, there is not an existing standard process in knowledge engineering that guides the ontology design with the required quality. There are several ontology design processes, which range from iterative to sequential, but they fail to ensure the practical application of an ontology and (...) to quantitatively validate end-user requirements through the evolution of an ontology. In this paper, an ontology design process is proposed, which is driven by end-user requirements, defined as Competency Questions. The process is called CQ-Driven Ontology DEsign Process and it includes activities that validate and verify the incremental design of an ontology through metrics based on defined CQs. CODEP has also been applied in the design and development of an ontology in the context of a Mexican Hospital for supporting Neurologist specialists. The specialists were involved, during the application of CODEP, in collecting quality measurements and validating the ontology increments. This application can demonstrate the feasibility of CODEP to deliver ontologies with similar requirements in other contexts. (shrink)

Buchanan and Powell’s ambitious work offers a wide-ranging philosophical treatment about one of social science’s active inquries: human morality and how it evolved. This review humbly offers a brief engagement with the social science of morality, both to support the book’s conclusions and occasionally to build productive interdisciplinary bridges toward an even more fuller treatment of the topic.

Moral norms are the rules of morality, those that people actually follow, and those that we feel people ought to follow, even when they don’t. Historically, the social sciences have been primarily concerned with describing the many forms that moral norms take in various cultures, with the emerging implication that moral norms are mere arbitrary products of culture. Philosophers, on the other hand, have been more concerned with trying to understand the nature and source of rules that all cultures (...) ought to follow, with relatively little regard for what people actually do. The tension between the two approaches has to do with whether there are any standards higher than the whims of culture in determining right and wrong. Typically, the social sciences say “no”, pointing at the diversity of moral beliefs. Most philosophers (along with people of moral conviction) feel that there must be some deeper source of morality than the trends and fads of culture. Unfortunately, the nature and source of such standards has remained something of a mystery. Recent work on the evolution of norms has changed this picture dramatically. (shrink)

ABSTRACTRecent research on moral dynamics shows that an individual's ethical mind-set moderates the impact of an initial ethical or unethical act on the likelihood of behaving ethically on a subsequent occasion. More specifically, an outcome-based mind-set facilitates Moral Balancing, whereas a rule-based mind-set facilitates Moral Consistency. The objective was to look at the evolution of moral choice across a series of scenarios, that is, to explore if these moral patterns are maintained over time. The results of three studies showed (...) that Moral Balancing is not.. (shrink)

Recent studies now provide a relatively robust explanation of how moral behavior evolved, perhaps not just in humans. An analysis of current biology textbooks shows that they fail to address this critical topic fully. Here, I survey resources—books, images, and videos—that can guide educators in meeting the challenge of teaching the biology of morality.

The Evolution of Morality attempts to accomplish two tasks. The first is to clarify and provisionally advocate the thesis that human morality is a distinct adaptation wrought by biological natural selection. The second is to inquire whether this empirical thesis would, if true, have any metaethical implications.

In recent years a number of biologists, anthropologists, and animal scientists have tried to explain the biological evolution of morality, and claim to have found the rudiments of morality in the altruistic behavior of our nearest nonhuman relatives. I argue that there is one feature of morality to which these accounts do not pay adequate attention: normative self-government, the capacity to be motivated to do something by the thought that you ought to do it. This is (...) a feature of the form of moral motivation rather than merely of its content, one that I believe we do not share with non-rational animals. Unlike his more recent followers, Darwin did try to explain how this capacity evolved. I explain Darwin's account and the way it drew on sentimentalist philosophy, and argue that such accounts are unsatisfactory. Drawing on the more radical accounts of the evolution of morality found in thinkers like Nietzsche and Freud, I speculate that moral motivation may have originated with the internalization of the dominance instincts, and sketch the beginnings of the path that the development of reason in both its theoretical and practical employments might have followed. (shrink)

Issue is taken with Dawkins and Krebs's (1978) conception of communication as being by nature manipulative and with Cronk's proposals concerning the evolution of morality, both of which are grounded in evolutionary biology. An alternative view, which recognizes that which humanity has in common with other species but which emphasizes humanity's distinctiveness, is offered to account for religion and morality.

For much of the twentieth century, philosophy and science went their separate ways. In moral philosophy, fear of the so-called naturalistic fallacy kept moral philosophers from incorporating developments in biology and psychology. Since the 1990s, however, many philosophers have drawn on recent advances in cognitive psychology, brain science, and evolutionary psychology to inform their work. This collaborative trend is especially strong in moral philosophy, and these volumes bring together some of the most innovative work by both philosophers and psychologists in (...) this emerging interdisciplinary field. The contributors to volume 1 discuss recent work on the evolution of moral beliefs, attitudes, and emotions. Each chapter includes an essay, comments on the essay by other scholars, and a reply by the author of the original essay. Topics include a version of naturalism that avoids supposed fallacies, distinct neurocomputational systems for deontic reasoning, the evolutionary psychology of moral sentiments regarding incest, the sexual selection of moral virtues, the evolution of symbolic thought, and arguments both for and against innate morality. Taken together, the chapters demonstrate the value for both philosophy and psychology of collaborative efforts to understand the many complex aspects of morality. Contributors: William Casebeer, Leda Cosmides, Oliver Curry, Michael Dietrich, Catherine Driscoll, Susan Dwyer, Owen Flanagan, Jerry Fodor, Gilbert Harman, Richard Joyce, Debra Lieberman, Ron Mallon, John Mikhail, Geoffrey Miller, Jesse Prinz, Peter Railton, Michael Ruse, Hagop Sarkissian, Walter Sinnott-Armstrong, Chandra Sekhar Sripada, Valerie Tiberius, John Tooby, Peter Tse, Kathleen Wallace, Arthur Wolf, David Wong Walter Sinnott-Armstrong is Professor of Philosophy and Hardy Professor of Legal Studies at Dartmouth College. (shrink)

Allen Buchanan and Russel Powell’s The Evolution of Moral Progress (EMP) is likely to become a landmark. It adeptly builds on much of the recent empirical work, weaving it together with philosophical material drawn from a series of essays published by the two authors. EMP makes the case that moral progress is not only consistent with human psychology but—under some conditions—likely. At its heart is a careful, well-developed rebuttal to the idea that there are evolved constraints endogenous to human (...) minds that place significant limits on various forms of moral progress, especially on the spread and sustainability of inclusive values. The alternative picture they present acknowledges that evolutionary history has shaped how our minds produce behaviour, but emphasizes that the contexts in which they currently operate are just as pivotal. While safe and stable ecological and social circumstances are hospitable to cosmopolitanism and encouraging of inclusive values, dangerous and threatening circumstances are more favourable to parochialism, exclusivist values, and morally regressive outgroup hostility (also see Buchanan and Powell [2015], [2016], [2017]). Overall, EMP is a compelling, well-researched, and timely book. It articulates arguably the most persuasive naturalistic theory of moral progress to date, and lays the groundwork for important and impactful research. (shrink)

Signals regarding the behavior of others are an essential element of human moral systems and there are important evolutionary connections between language and large-scale cooperation. In particular, social communication may be required for the reputation tracking needed to stabilize indirect reciprocity. Additionally, scholars have suggested that the benefits of indirect reciprocity may have been important for the evolution of language and that social signals may have coevolved with large-scale cooperation. This paper investigates the possibility of such a coevolution. Using (...) the tools of evolutionary game theory, we present a model that incorporates primitive “moral signaling” into a simple setting of indirect reciprocity. This model reveals some potential difficulties for the evolution of “moral signals.” We find that it is possible for “moral signals” to evolve alongside indirect reciprocity, but without some external pressure aiding the evolution of a signaling system, such a coevolution is unlikely. (shrink)

It is certainly the case that morality governs the interactions that take place between individuals. But what if morality exists because of these interactions? This book, first published in 2007, argues for the claim that much of the behaviour we view as 'moral' exists because acting in that way benefits each of us to the greatest extent possible, given the socially structured nature of society. Drawing upon aspects of evolutionary game theory, the theory of bounded rationality, and computational (...) models of social networks, it shows both how moral behaviour can emerge in socially structured environments, and how it can persist even when it is not typically viewed as 'rational' from a traditional economic perspective. This book also provides a theory of how moral principles and the moral sentiments play an indispensable role in effective choice, acting as 'fast and frugal heuristics' in social decision contexts. (shrink)

Is the cultural evolution of morality fairly contingent? Could cultural evolution have easily led humans to moral norms and judgments that are mostly false by our present lights? If so, does it matter philosophically? Yes, or so we argue. We empirically motivate the contingency of cultural evolution and show that it makes two major philosophical contributions. First, it shows that moral objectivists cannot explain the reliability of our moral judgments and thus strengthens moral debunking arguments. Second, (...) it shows that the reliability of our moral judgments is evidence for theism over metaphysical naturalism. (shrink)

In many vertebrates, the enzymatic oxidation of dietary yellow carotenoids generates red keto‐carotenoids giving color to ornaments. The oxidase CYP2J19 is here a key effector. Its purported intracellular location suggests a shared biochemical pathway between trait expression and cell functioning. This might guarantee the reliability of red colorations as individual quality signals independent of production costs. We hypothesize that the ornament type (feathers vs. bare parts) and production costs (probably CYP2J19 activity compromising vital functions) could have promoted tissue‐specific gene relocation. (...) We review current avian tissue‐specific CYP2J19 expression data. Among the ten red‐billed species showing CYP2J19 bill expression, only one showed strong hepatic expression. Moreover, a phylogenetically‐controlled analysis of 25 red‐colored species shows that those producing red bare parts are less likely to have strong hepatic CYP2J19 expression than species with only red plumages. Thus, both production costs and shared pathways might have contributed to the evolution of red signals. (shrink)

In my summary lecture at the IRAS 1997 Star Island Conference on the Evolution of Morality, I reflected on the thinking of other speakers in light of my own personal experience. My remarks were organized around five questions: (1) Do worldviews matter, and how do we decide if some matter more than others? (2) What does it mean to be moral? (3) What is the relation between biology and culture? (4) How does a scientific, sociobiological description of how (...) we have become moral fit with our own personal quest for meaning and moral guidance toward richer and fuller lives? (5) How do we test evolutionary views of the biological conditions of morality scientifically? (shrink)

In my summary lecture at the IRAS 1997 Star Island Conference on the Evolution of Morality, I reflected on the thinking of other speakers in light of my own personal experience. My remarks were organized around five questions: (1) Do worldviews matter, and how do we decide if some matter more than others? (2) What does it mean to be moral? (3) What is the relation between biology and culture? (4) How does a scientific, sociobiological description of how (...) we have become moral fit with our own personal quest for meaning and moral guidance toward richer and fuller lives? (5) How do we test evolutionary views of the biological conditions of morality scientifically? (shrink)

The idea of moral progress played a central role in liberal political thought from the Enlightenment through the nineteenth century but is rarely encountered in moral and political philosophical discourse today. One reason for this is that traditional liberal theorists of moral progress, like their conservative detractors, tended to rely on under-evidenced assumptions about human psychology and society. For the first time, we are developing robust scientific knowledge about human nature, especially through empirical psychological theories of morality and culture (...) that are informed by evolutionary theory. On the surface, evolutionary accounts of morality paint a rather pessimistic picture of human moral nature, suggesting that certain types of moral progress are unrealistic or inappropriate for beings like us. Humans are said to be ‘hard-wired’ for tribalism. However, such a view overlooks the great plasticity of human morality as evidenced by our history of social and political moral achievements. To account for these changes while giving evolved moral psychology its due, we develop a dynamic, biocultural theory of moral progress that highlights the interaction between adaptive components of moral psychology and the cultural construction of moral norms and beliefs, and we explore how this interaction can advance, impede, and reverse moral progress. (shrink)

Baumard et al. attribute to humans a sense of fairness. However, the properties of this sense are so underspecified that the evolutionary account offered is not well-motivated. We contrast this with the framework of Universal Moral Grammar, which has sought a descriptively adequate account of the structure of the moral domain as a precondition for understanding the evolution of morality.