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lingering perceptions based on dramatic, painful events are impacting decision-making even when those events are over.

Ariely said a home country investment bias might be generated by two perceptual factors.“The first is an overly optimistic belief about one’s own economy; an expectation of performance in their country that is higher than what would be statistically realistic. The second reason is most likely due to procedural difficulties in investing outside the country – such as less knowledge about how to access these markets.”

investors may be making decisions driven more by personal bias or irrational belief than by reality and, in doing so, they may be hindering their own investment success.

The problem? These decisions may hinder their ability to reach their desired retirement or savings goals. The choice is between changing the goal—or changing the means of reaching it.

Dr. Byrne and her colleagues measured risky decision-making by presenting people with a gambling scenario. They could choose between two bets: One offered a guaranteed amount of money, while the other offered the possibility of a larger amount of money but also the possibility of receiving no cash. A different exercise measured people’s preference for immediate versus delayed rewards: Participants could choose a certain amount of money now, or a larger amount later.

Study subjects also reported Covid-19 precautions they had taken in their daily lives, including masking and social distancing.

with Covid-19, people don’t feel sick immediately after an exposure so the benefits of wearing a mask, social distancing or getting vaccinated aren’t immediately apparent. “You don’t see the lives you potentially save,” she says

“People generally are more motivated by immediate gratification or immediate benefits rather than long-term benefits, even when the long-term benefits are much greater,

Research has also found being extroverted or introverted affects how people make decisions about Covid-19 precautions. A recent study of more than 8,500 people in Japan published in the journal PLOS One in October 2020 found that those who scored high on a scale of extraversion were 7% less likely to wear masks in public and avoid large gatherings, among other precautions.

The study also found that people who scored high on a measure of conscientiousness—valuing hard work and achievement—were 31% more likely to follow Covid-19 public-health precautions.

Scientists believe that a person’s propensity to take risks is partly genetic and partly the result of early life experiences

Certain negative childhood experiences including physical, emotional or sexual abuse, parental divorce, or living with someone who was depressed or abused drugs or alcohol are linked to risky behavior in adulthood like smoking and drinking heavily, other research has found.

Studies of twins have generally found that about 30% of the difference in individual risk tolerance is genetic

And scientists have discovered that the brains of people who are more willing to take risks look different than those of people who are more cautious.

ambling task had differences in the structure and function of the amygdala, a part of the brain involved in detecting threats, and the prefrontal cortex, a region involved in executive

Even people who have the same information and a similar perception of the risks may make different decisions because of the ways they interpret the information. When public-health officials talk about breakthrough infections in vaccinated individuals being rare, for example, “rare means different things” to different people

Rationality is the collection of theories, beliefs, principles, and facts that the human subject uses to judge the world, and a person’s rationality is, to a large extent, the product of that person’s education and moral formation.

To the extent that a person accepts what is handed down from the moral and intellectual traditions of her or his community in learning to judge truth and falsity, good and evil, that person’s rationality is “tradition-constituted.” Tradition-constituted rationality provides the schemata by which we interpret, understand, and judge the world we live in

The apparent problem of relativism in MacIntyre’s theory of rationality is much like the problem of relativism in the philosophy of science. Scientific claims develop within larger theoretical frameworks, so that the apparent truth of a scientific claim depends on one’s judgment of the larger framework. The resolution of the problem of relativism therefore appears to hang on the possibility of judging frameworks or rationalities, or judging between frameworks or rationalities from a position that does not presuppose the truth of the framework or rationality, but no such theoretical standpoint is humanly possible.

MacIntyre finds that the world itself provides the criterion for the testing of rationalities, and he finds that there is no criterion except the world itself that can stand as the measure of the truth of any philosophical theory.

MacIntyre’s philosophy is indebted to the philosophy of science, which recognizes the historicism of scientific enquiry even as it seeks a truthful understanding of the world. MacIntyre’s philosophy does not offer a priori certainty about any theory or principle; it examines the ways in which reflection upon experience supports, challenges, or falsifies theories that have appeared to be the best theories so far to the people who have accepted them so far. MacIntyre’s ideal enquirers remain Hamlets, not Emmas.

history shows us that individuals, communities, and even whole nations may commit themselves militantly over long periods of their histories to doctrines that their ideological adversaries find irrational. This qualified relativism of appearances has troublesome implications for anyone who believes that philosophical enquiry can easily provide certain knowledge of the world

According to MacIntyre, theories govern the ways that we interpret the world and no theory is ever more than “the best standards so far” (3RV, p. 65). Our theories always remain open to improvement, and when our theories change, the appearances of our world—the apparent truths of claims judged within those theoretical frameworks—change with them.

From the subjective standpoint of the human enquirer, MacIntyre finds that theories, concepts, and facts all have histories, and they are all liable to change—for better or for worse.

MacIntyre holds that the rationality of individuals is not only tradition-constituted, it is also tradition constitutive, as individuals make their own contributions to their own rationality, and to the rationalities of their communities. Rationality is not fixed, within either the history of a community or the life of a person

The modern account of first principles justifies an approach to philosophy that rejects tradition. The modern liberal individualist approach is anti-traditional. It denies that our understanding is tradition-constituted and it denies that different cultures may differ in their standards of rationality and justice:

Modernity does not see tradition as the key that unlocks moral and political understanding, but as a superfluous accumulation of opinions that tend to prejudice moral and political reasoning.

Although modernity rejects tradition as a method of moral and political enquiry, MacIntyre finds that it nevertheless bears all the characteristics of a moral and political tradition.

If historical narratives are only projections of the interests of historians, then it is difficult to see how this historical narrative can claim to be truthful

For these post-modern theorists, “if the Enlightenment conceptions of truth and rationality cannot be sustained,” either relativism or perspectivism “is the only possible alternative” (p. 353). MacIntyre rejects both challenges by developing his theory of tradition-constituted and tradition-constitutive rationality on pp. 354-369

How, then, is one to settle challenges between two traditions? It depends on whether the adherents of either take the challenges of the other tradition seriously. It depends on whether the adherents of either tradition, on seeing a failure in their own tradition are willing to consider an answer offered by their rival (p. 355)

how a person with no traditional affiliation is to deal with the conflicting claims of rival traditions: “The initial answer is: that will depend upon who you are and how you understand yourself. This is not the kind of answer which we have been educated to expect in philosophy”

MacIntyre focuses the critique of modernity on the question of rational justification. Modern epistemology stands or falls on the possibility of Cartesian epistemological first principles. MacIntyre’s history exposes that notion of first principle as a fiction, and at the same time demonstrates that rational enquiry advances (or declines) only through tradition

MacIntyre cites Foucault’s 1966 book, Les Mots et les choses (The Order of Things, 1970) as an example of the self-subverting character of Genealogical enquiry

Foucault’s book reduces history to a procession of “incommensurable ordered schemes of classification and representation” none of which has any greater claim to truth than any other, yet this book “is itself organized as a scheme of classification and representation.”

From MacIntyre’s perspective, there is no question of deciding whether or not to work within a tradition; everyone who struggles with practical, moral, and political questions simply does. “There is no standing ground, no place for enquiry . . . apart from that which is provided by some particular tradition or other”

Three Rival Versions of Moral Enquiry (1990). The central idea of the Gifford Lectures is that philosophers make progress by addressing the shortcomings of traditional narratives about the world, shortcomings that become visible either through the failure of traditional narratives to make sense of experience, or through the introduction of contradictory narratives that prove impossible to dismiss

MacIntyre compares three traditions exemplified by three literary works published near the end of Adam Gifford’s life (1820–1887)

The Ninth Edition of the Encyclopaedia Britannica (1875–1889) represents the modern tradition of trying to understand the world objectively without the influence of tradition.

The Genealogy of Morals (1887), by Friedrich Nietzsche embodies the post-modern tradition of interpreting all traditions as arbitrary impositions of power.

The encyclical letter Aeterni Patris (1879) of Pope Leo XIII exemplifies the approach of acknowledging one’s predecessors within one’s own tradition of enquiry and working to advance or improve that tradition in the pursuit of objective truth. 

Of the three versions of moral enquiry treated in 3RV, only tradition, exemplified in 3RV by the Aristotelian, Thomistic tradition, understands itself as a tradition that looks backward to predecessors in order to understand present questions and move forward

Encyclopaedia obscures the role of tradition by presenting the most current conclusions and convictions of a tradition as if they had no history, and as if they represented the final discovery of unalterable truth

Encyclopaedists focus on the present and ignore the past.

Genealogists, on the other hand, focus on the past in order to undermine the claims of the present.

In short, Genealogy denies the teleology of human enquiry by denying (1) that historical enquiry has been fruitful, (2) that the enquiring person has a real identity, and (3) that enquiry has a real goal. MacIntyre finds this mode of enquiry incoherent.

Genealogy is self-deceiving insofar as it ignores the traditional and teleological character of its enquiry.

Genealogical moral enquiry must make similar exceptions to its treatments of the unity of the enquiring subject and the teleology of moral enquiry; thus “it seems to be the case that the intelligibility of genealogy requires beliefs and allegiances of a kind precluded by the genealogical stance” (3RV, p. 54-55)

MacIntyre uses Thomism because it applies the traditional mode of enquiry in a self-conscious manner. Thomistic students learn the work of philosophical enquiry as apprentices in a craft (3RV, p. 61), and maintain the principles of the tradition in their work to extend the understanding of the tradition, even as they remain open to the criticism of those principles.

3RV uses Thomism as its example of tradition, but this use should not suggest that MacIntyre identifies “tradition” with Thomism or Thomism-as-a-name-for-the-Western-tradition. As noted above, WJWR distinguished four traditions of enquiry within the Western European world alone

MacIntyre’s emphasis on the temporality of rationality in traditional enquiry makes tradition incompatible with the epistemological projects of modern philosophy

Tradition is not merely conservative; it remains open to improvement,

Tradition differs from both encyclopaedia and genealogy in the way it understands the place of its theories in the history of human enquiry. The adherent of a tradition must understand that “the rationality of a craft is justified by its history so far,” thus it “is inseparable from the tradition through which it was achieved”

MacIntyre uses Thomas Aquinas to illustrate the revolutionary potential of traditional enquiry. Thomas was educated in Augustinian theology and Aristotelian philosophy, and through this education he began to see not only the contradictions between the two traditions, but also the strengths and weaknesses that each tradition revealed in the other. His education also helped him to discover a host of questions and problems that had to be answered and solved. Many of Thomas Aquinas’ responses to these concerns took the form of disputed questions. “Yet to each question the answer produced by Aquinas as a conclusion is no more than and, given Aquinas’s method, cannot but be no more than, the best answer reached so far. And hence derives the essential incompleteness”

argue that the virtues are essential to the practice of independent practical reason. The book is relentlessly practical; its arguments appeal only to experience and to purposes, and to the logic of practical reasoning.

Like other intelligent animals, human beings enter life vulnerable, weak, untrained, and unknowing, and face the likelihood of infirmity in sickness and in old age. Like other social animals, humans flourish in groups. We learn to regulate our passions, and to act effectively alone and in concert with others through an education provided within a community. MacIntyre’s position allows him to look to the animal world to find analogies to the role of social relationships in the moral formation of human beings

The task for the human child is to make “the transition from the infantile exercise of animal intelligence to the exercise of independent practical reasoning” (DRA, p. 87). For a child to make this transition is “to redirect and transform her or his desires, and subsequently to direct them consistently towards the goods of different stages of her or his life” (DRA, p. 87). The development of independent practical reason in the human agent requires the moral virtues in at least three ways.

DRA presents moral knowledge as a “knowing how,” rather than as a “knowing that.” Knowledge of moral rules is not sufficient for a moral life; prudence is required to enable the agent to apply the rules well.

“Knowing how to act virtuously always involves more than rule-following” (DRA, p. 93). The prudent person can judge what must be done in the absence of a rule and can also judge when general norms cannot be applied to particular cases.

Flourishing as an independent practical reasoner requires the virtues in a second way, simply because sometimes we need our friends to tell us who we really are. Independent practical reasoning also requires self-knowledge, but self-knowledge is impossible without the input of others whose judgment provides a reliable touchstone to test our beliefs about ourselves. Self-knowledge therefore requires the virtues that enable an agent to sustain formative relationships and to accept the criticism of trusted friends

Human flourishing requires the virtues in a third way, by making it possible to participate in social and political action. They enable us to “protect ourselves and others against neglect, defective sympathies, stupidity, acquisitiveness, and malice” (DRA, p. 98) by enabling us to form and sustain social relationships through which we may care for one another in our infirmities, and pursue common goods with and for the other members of our societies.

MacIntyre argues that it is impossible to find an external standpoint, because rational enquiry is an essentially social work (DRA, p. 156-7). Because it is social, shared rational enquiry requires moral commitment to, and practice of, the virtues to prevent the more complacent members of communities from closing off critical reflection upon “shared politically effective beliefs and concepts”

MacIntyre finds himself compelled to answer what may be called the question of moral provincialism: If one is to seek the truth about morality and justice, it seems necessary to “find a standpoint that is sufficiently external to the evaluative attitudes and practices that are to be put to the question.” If it is impossible for the agent to take such an external standpoint, if the agent’s commitments preclude radical criticism of the virtues of the community, does that leave the agent “a prisoner of shared prejudices” (DRA, p. 154)?

The book moves from MacIntyre’s assessment of human needs for the virtues to the political implications of that assessment. Social and political institutions that form and enable independent practical reasoning must “satisfy three conditions.” (1) They must enable their members to participate in shared deliberations about the communities’ actions. (2) They must establish norms of justice “consistent with exercise of” the virtue of justice. (3) They must enable the strong “to stand proxy” as advocates for the needs of the weak and the disabled.

The social and political institutions that MacIntyre recommends cannot be identified with the modern nation state or the modern nuclear family

The political structures necessary for human flourishing are essentially local

Yet local communities support human flourishing only when they actively support “the virtues of just generosity and shared deliberation”

MacIntyre rejects individualism and insists that we view human beings as members of communities who bear specific debts and responsibilities because of our social identities. The responsibilities one may inherit as a member of a community include debts to one’s forbearers that one can only repay to people in the present and future

The constructive argument of the second half of the book begins with traditional accounts of the excellences or virtues of practical reasoning and practical rationality rather than virtues of moral reasoning or morality. These traditional accounts define virtue as arête, as excellence

Practices are supported by institutions like chess clubs, hospitals, universities, industrial corporations, sports leagues, and political organizations.

Practices exist in tension with these institutions, since the institutions tend to be oriented to goods external to practices. Universities, hospitals, and scholarly societies may value prestige, profitability, or relations with political interest groups above excellence in the practices they are said to support.

Personal desires and institutional pressures to pursue external goods may threaten to derail practitioners’ pursuits of the goods internal to practices. MacIntyre defines virtue initially as the quality of character that enables an agent to overcome these temptations:

“A virtue is an acquired human quality the possession and exercise of which tends to enable us to achieve those goods which are internal to practices

Excellence as a human agent cannot be reduced to excellence in a particular practice (See AV, pp. 204–

The virtues therefore are to be understood as those dispositions which will not only sustain practices and enable us to achieve the goods internal to practices, but which will also sustain us in the relevant kind of quest for the good, by enabling us to overcome the harms, dangers, temptations, and distractions which we encounter, and which will furnish us with increasing self-knowledge and increasing knowledge of the good (AV, p. 219).

The excellent human agent has the moral qualities to seek what is good and best both in practices and in life as a whole.

The virtues find their point and purpose not only in sustaining those relationships necessary if the variety of goods internal to practices are to be achieved and not only in sustaining the form of an individual life in which that individual may seek out his or her good as the good of his or her whole life, but also in sustaining those traditions which provide both practices and individual lives with their necessary historical context (AV, p. 223)

Since “goods, and with them the only grounds for the authority of laws and virtues, can only be discovered by entering into those relationships which constitute communities whose central bond is a shared vision of and understanding of goods” (AV, p. 258), any hope for the transformation and renewal of society depends on the development and maintenance of such communities.

MacIntyre’s Aristotelian approach to ethics as a study of human action distinguishes him from post-Kantian moral philosophers who approach ethics as a means of determining the demands of objective, impersonal, universal morality

This modern approach may be described as moral epistemology. Modern moral philosophy pretends to free the individual to determine for her- or himself what she or he must do in a given situation, irrespective of her or his own desires; it pretends to give knowledge of universal moral laws

Aristotelian metaphysicians, particularly Thomists who define virtue in terms of the perfection of nature, rejected MacIntyre’s contention that an adequate Aristotelian account of virtue as excellence in practical reasoning and human action need not appeal to Aristotelian metaphysic

one group of critics rejects MacIntyre’s Aristotelianism because they hold that any Aristotelian account of the virtues must first account for the truth about virtue in terms of Aristotle’s philosophy of nature, which MacIntyre had dismissed in AV as “metaphysical biology”

Many of those who rejected MacIntyre’s turn to Aristotle define “virtue” primarily along moral lines, as obedience to law or adherence to some kind of natural norm. For these critics, “virtuous” appears synonymous with “morally correct;” their resistance to MacIntyre’s appeal to virtue stems from their difficulties either with what they take to be the shortcomings of MacIntyre’s account of moral correctness or with the notion of moral correctness altogether

MacIntyre continues to argue from the experience of practical reasoning to the demands of moral education.

Descartes and his successors, by contrast, along with certain “notable Thomists of the last hundred years” (p. 175), have proposed that philosophy begins from knowledge of some “set of necessarily true first principles which any truly rational person is able to evaluate as true” (p. 175). Thus for the moderns, philosophy is a technical rather than moral endeavor

MacIntyre distinguishes two related challenges to his position, the “relativist challenge” and the “perspectivist challenge.” These two challenges both acknowledge that the goals of the Enlightenment cannot be met and that, “the only available standards of rationality are those made available by and within traditions” (p. 252); they conclude that nothing can be known to be true or false

MacIntyre follows the progress of the Western tradition through “three distinct traditions:” from Homer and Aristotle to Thomas Aquinas, from Augustine to Thomas Aquinas and from Augustine through Calvin to Hume

Chapter 17 examines the modern liberal denial of tradition, and the ironic transformation of liberalism into the fourth tradition to be treated in the book.

MacIntyre credits John Stuart Mill and Thomas Aquinas as “two philosophers of the kind who by their writing send us beyond philosophy into immediate encounter with the ends of life

First, both were engaged by questions about the ends of life as questioning human beings and not just as philosophers. . . .

Secondly, both Mill and Aquinas understood their speaking and writing as contributing to an ongoing philosophical conversation. . . .

Thirdly, it matters that both the end of the conversation and the good of those who participate in it is truth and that the nature of truth, of good, of rational justification, and of meaning therefore have to be central topics of that conversation (Tasks, pp. 130-1).

Without these three characteristics, philosophy is first reduced to “the exercise of a set of analytic and argumentative skills. . . . Secondly, philosophy may thereby become a diversion from asking questions about the ends of life with any seriousness”

Neither Rosenzweig nor Lukács made philosophical progress because both failed to relate “their questions about the ends of life to the ends of their philosophical writing”

First, any adequate philosophical history or biography must determine whether the authors studied remain engaged with the questions that philosophy studies, or set the questions aside in favor of the answers. Second, any adequate philosophical history or biography must determine whether the authors studied insulated themselves from contact with conflicting worldviews or remained open to learning from every available philosophical approach. Third, any adequate philosophical history or biography must place the authors studied into a broader context that shows what traditions they come from and “whose projects” they are “carrying forward

MacIntyre’s recognition of the connection between an author’s pursuit of the ends of life and the same author’s work as a philosophical writer prompts him to finish the essay by demanding three things of philosophical historians and biographers

Philosophy is not just a study; it is a practice. Excellence in this practice demands that an author bring her or his struggles with the questions of the ends of philosophy into dialogue with historic and contemporary texts and authors in the hope of making progress in answering those questions

MacIntyre defends Thomistic realism as rational enquiry directed to the discovery of truth.

The three Thomistic essays in this book challenge those caricatures by presenting Thomism in a way that people outside of contemporary Thomistic scholarship may find surprisingly flexible and open

To be a moral agent, (1) one must understand one’s individual identity as transcending all the roles that one fills; (2) one must see oneself as a practically rational individual who can judge and reject unjust social standards; and (3) one must understand oneself as “as accountable to others in respect of the human virtues and not just in respect of [one’s] role-performances

J is guilty because he complacently accepted social structures that he should have questioned, structures that undermined his moral agency. This essay shows that MacIntyre’s ethics of human agency is not just a descriptive narrative about the manner of moral education; it is a standard laden account of the demands of moral agency.

MacIntyre considers “the case of J” (J, for jemand, the German word for “someone”), a train controller who learned, as a standard for his social role, to take no interest in what his trains carried, even during war time when they carried “munitions and . . . Jews on their way to extermination camps”

J had learned to do his work for the railroad according to one set of standards and to live other parts of his life according to other standards, so that this compliant participant in “the final solution” could contend, “You cannot charge me with moral failure” (E&P, p. 187).

The epistemological theories of Modern moral philosophy were supposed to provide rational justification for rules, policies, and practical determinations according to abstract universal standards, but MacIntyre has dismissed those theorie

Modern metaethics is supposed to enable its practitioners to step away from the conflicting demands of contending moral traditions and to judge those conflicts from a neutral position, but MacIntyre has rejected this project as well

In his ethical writings, MacIntyre seeks only to understand how to liberate the human agent from blindness and stupidity, to prepare the human agent to recognize what is good and best to do in the concrete circumstances of that agent’s own life, and to strengthen the agent to follow through on that judgment.

In his political writings, MacIntyre investigates the role of communities in the formation of effective rational agents, and the impact of political institutions on the lives of communities. This kind of ethics and politics is appropriately named the ethics of human agency.

The purpose of the modern moral philosophy of authors like Kant and Mill was to determine, rationally and universally, what kinds of behavior ought to be performed—not in terms of the agent’s desires or goals, but in terms of universal, rational duties. Those theories purported to let agents know what they ought to do by providing knowledge of duties and obligations, thus they could be described as theories of moral epistemology.

Contemporary virtue ethics purports to let agents know what qualities human beings ought to have, and the reasons that we ought to have them, not in terms of our fitness for human agency, but in the same universal, disinterested, non-teleological terms that it inherits from Kant and Mill.

For MacIntyre, moral knowledge remains a “knowing how” rather than a “knowing that;” MacIntyre seeks to identify those moral and intellectual excellences that make human beings more effective in our pursuit of the human good.

MacIntyre’s purpose in his ethics of human agency is to consider what it means to seek one’s good, what it takes to pursue one’s good, and what kind of a person one must become if one wants to pursue that good effectively as a human agent.

As a philosophy of human agency, MacIntyre’s work belongs to the traditions of Aristotle and Thomas Aquinas.

in keeping with the insight of Marx’s third thesis on Feuerbach, it maintained the common condition of theorists and people as peers in the pursuit of the good life.

He holds that the human good plays a role in our practical reasoning whether we recognize it or not, so that some people may do well without understanding why (E&P, p. 25). He also reads Aristotle as teaching that knowledge of the good can make us better agents

AV defines virtue in terms of the practical requirements for excellence in human agency, in an agent’s participation in practices (AV, ch. 14), in an agent’s whole life, and in an agent’s involvement in the life of her or his community

MacIntyre’s Aristotelian concept of “human action” opposes the notion of “human behavior” that prevailed among mid-twentieth-century determinist social scientists. Human actions, as MacIntyre understands them, are acts freely chosen by human agents in order to accomplish goals that those agents pursue

Human behavior, according to mid-twentieth-century determinist social scientists, is the outward activity of a subject, which is said to be caused entirely by environmental influences beyond the control of the subject.

Rejecting crude determinism in social science, and approaches to government and public policy rooted in determinism, MacIntyre sees the renewal of human agency and the liberation of the human agent as central goals for ethics and politics.

MacIntyre’s Aristotelian account of “human action” examines the habits that an agent must develop in order to judge and act most effectively in the pursuit of truly choice-worthy ends

MacIntyre seeks to understand what it takes for the human person to become the kind of agent who has the practical wisdom to recognize what is good and best to do and the moral freedom to act on her or his best judgment.

MacIntyre rejected the determinism of modern social science early in his career (“Determinism,” 1957), yet he recognizes that the ability to judge well and act freely is not simply given; excellence in judgment and action must be developed, and it is the task of moral philosophy to discover how these excellences or virtues of the human agent are established, maintained, and strengthened

MacIntyre’s Aristotelian philosophy investigates the conditions that support free and deliberate human action in order to propose a path to the liberation of the human agent through participation in the life of a political community that seeks its common goods through the shared deliberation and action of its members

As a classics major at Queen Mary College in the University of London (1945-1949), MacIntyre read the Greek texts of Plato and Aristotle, but his studies were not limited to the grammars of ancient languages. He also examined the ethical theories of Immanuel Kant and John Stuart Mill. He attended the lectures of analytic philosopher A. J. Ayer and of philosopher of science Karl Popper. He read Ludwig Wittgenstein’s Tractatus Logico Philosophicus, Jean-Paul Sartre’s L'existentialisme est un humanisme, and Marx’s Eighteenth Brumaire of Napoleon Bonaparte (What happened, pp. 17-18). MacIntyre met the sociologist Franz Steiner, who helped direct him toward approaching moralities substantively

Alasdair MacIntyre’s philosophy builds on an unusual foundation. His early life was shaped by two conflicting systems of values. One was “a Gaelic oral culture of farmers and fishermen, poets and storytellers.” The other was modernity, “The modern world was a culture of theories rather than stories” (MacIntyre Reader, p. 255). MacIntyre embraced both value systems

From Marxism, MacIntyre learned to see liberalism as a destructive ideology that undermines communities in the name of individual liberty and consequently undermines the moral formation of human agents

For MacIntyre, Marx’s way of seeing through the empty justifications of arbitrary choices to consider the real goals and consequences of political actions in economic and social terms would remain the principal insight of Marxism

After his retirement from teaching, MacIntyre has continued his work of promoting a renewal of human agency through an examination of the virtues demanded by practices, integrated human lives, and responsible engagement with community life. He is currently affiliated with the Centre for Contemporary Aristotelian Studies in Ethics and Politics (CASEP) at London Metropolitan University.

The second half of AV proposes a conception of practice and practical reasoning and the notion of excellence as a human agent as an alternative to modern moral philosophy

AV rejects the view of “modern liberal individualism” in which autonomous individuals use abstract moral principles to determine what they ought to do. The critique of modern normative ethics in the first half of AV rejects modern moral reasoning for its failure to justify its premises, and criticizes the frequent use of the rhetoric of objective morality and scientific necessity to manipulate people to accept arbitrary decisions

MacIntyre uses “modern liberal individualism” to name a much broader category that includes both liberals and conservatives in contemporary American political parlance, as well as some Marxists and anarchists (See ASIA, pp. 280-284). Conservatism, liberalism, Marxism, and anarchism all present the autonomous individual as the unit of civil society

The sources of modern liberal individualism—Hobbes, Locke, and Rousseau—assert that human life is solitary by nature and social by habituation and convention. MacIntyre’s Aristotelian tradition holds, on the contrary, that human life is social by nature.

MacIntyre identifies moral excellence with effective human agency, and seeks a political environment that will help to liberate human agents to recognize and seek their own goods, as components of the common goods of their communities, more effectively. For MacIntyre therefore, ethics and politics are bound together.

For MacIntyre ethics is not an application of principles to facts, but a study of moral action. Moral action, free human action, involves decisions to do things in pursuit of goals, and it involves the understanding of the implications of one’s actions for the whole variety of goals that human agents seek

In this sense, “To act morally is to know how to act” (SMJ, p. 56). “Morality is not a ‘knowing that’ but a ‘knowing how’”

If human action is a ‘knowing how,’ then ethics must also consider how one learns ‘how.’ Like other forms of ‘knowing how,’ MacIntyre finds that one learns how to act morally within a community whose language and shared standards shape our judgment

MacIntyre had concluded that ethics is not an abstract exercise in the assessment of facts; it is a study of free human action and of the conditions that enable rational human agency.

MacIntyre gives Marx credit for concluding in the third of the Theses on Feuerbach, that the only way to change society is to change ourselves, and that “The coincidence of the changing of human activity or self-changing can only be comprehended and rationally understood as revolutionary practice”

MacIntyre distinguishes “religion which is an opiate for the people from religion which is not” (MI, p. 83). He condemns forms of religion that justify social inequities and encourage passivity. He argues that authentic Christian teaching criticizes social structures and encourages action

Where “moral philosophy textbooks” discuss the kinds of maxims that should guide “promise-keeping, truth-telling, and the like,” moral maxims do not guide real agents in real life at all. “They do not guide us because we do not need to be guided. We know what to do” (ASIA, p. 106). Sometimes we do this without any maxims at all, or even against all the maxims we know. MacIntyre Illustrates his point with Huckleberry Finn’s decision to help Jim, Miss Watson’s escaped slave, to make his way to freedom

MacIntyre develops the ideas that morality emerges from history, and that morality organizes the common life of a community

The book concludes that the concepts of morality are neither timeless nor ahistorical, and that understanding the historical development of ethical concepts can liberate us “from any false absolutist claims” (SHE, p. 269). Yet this conclusion need not imply that morality is essentially arbitrary or that one could achieve freedom by liberating oneself from the morality of one’s society.

From this “Aristotelian point of view,” “modern morality” begins to go awry when moral norms are separated from the pursuit of human goods and moral behavior is treated as an end in itself. This separation characterizes Christian divine command ethics since the fourteenth century and has remained essential to secularized modern morality since the eighteenth century

From MacIntyre’s “Aristotelian point of view,” the autonomy granted to the human agent by modern moral philosophy breaks down natural human communities and isolates the individual from the kinds of formative relationships that are necessary to shape the agent into an independent practical reasoner.

the 1977 essay “Epistemological Crises, Dramatic Narrative, and the Philosophy of Science” (Hereafter EC). This essay, MacIntyre reports, “marks a major turning-point in my thought in the 1970s” (The Tasks of Philosophy, p. vii) EC may be described fairly as MacIntyre’s discourse on method

First, Philosophy makes progress through the resolution of problems. These problems arise when the theories, histories, doctrines and other narratives that help us to organize our experience of the world fail us, leaving us in “epistemological crises.” Epistemological crises are the aftermath of events that undermine the ways that we interpret our world

it presents three general points on the method for philosophy.

To live in an epistemological crisis is to be aware that one does not know what one thought one knew about some particular subject and to be anxious to recover certainty about that subject.

To resolve an epistemological crisis it is not enough to impose some new way of interpreting our experience, we also need to understand why we were wrong before: “When an epistemological crisis is resolved, it is by the construction of a new narrative which enables the agent to understand both how he or she could intelligibly have held his or her original beliefs and how he or she could have been so drastically misled by them

MacIntyre notes, “Philosophers have customarily been Emmas and not Hamlets” (p. 6); that is, philosophers have treated their conclusions as accomplished truths, rather than as “more adequate narratives” (p. 7) that remain open to further improvement.

To illustrate his position on the open-endedness of enquiry, MacIntyre compares the title characters of Shakespeare’s Hamlet and Jane Austen’s Emma. When Emma finds that she is deeply misled in her beliefs about the other characters in her story, Mr. Knightly helps her to learn the truth and the story comes to a happy ending (p. 6). Hamlet, by contrast, finds no pat answers to his questions; rival interpretations remain throughout the play, so that directors who would stage the play have to impose their own interpretations on the script

Another approach to education is the method of Descartes, who begins by rejecting everything that is not clearly and distinctly true as unreliable and false in order to rebuild his understanding of the world on a foundation of undeniable truth.

Descartes presents himself as willfully rejecting everything he had believed, and ignores his obvious debts to the Scholastic tradition, even as he argues his case in French and Latin. For MacIntyre, seeking epistemological certainty through universal doubt as a precondition for enquiry is a mistake: “it is an invitation not to philosophy but to mental breakdown, or rather to philosophy as a means of mental breakdown.

MacIntyre contrasts Descartes’ descent into mythical isolation with Galileo, who was able to make progress in astronomy and physics by struggling with the apparently insoluble questions of late medieval astronomy and physics, and radically reinterpreting the issues that constituted those questions

To make progress in philosophy one must sort through the narratives that inform one’s understanding, struggle with the questions that those narratives raise, and on occasion, reject, replace, or reinterpret portions of those narratives and propose those changes to the rest of one’s community for assessment. Human enquiry is always situated within the history and life of a community.

The third point of EC is that we can learn about progress in philosophy from the philosophy of science

Kuhn’s “paradigm shifts,” however, are unlike MacIntyre’s resolutions of epistemological crises in two ways.

First they are not rational responses to specific problems. Kuhn compares paradigm shifts to religious conversions (pp. 150, 151, 158), stressing that they are not guided by rational norms and he claims that the “mopping up” phase of a paradigm shift is a matter of convention in the training of new scientists and attrition among the holdouts of the previous paradigm

Second, the new paradigm is treated as a closed system of belief that regulates a new period of “normal science”; Kuhn’s revolutionary scientists are Emmas, not Hamlets

MacIntyre proposes elements of Imre Lakatos’ philosophy of science as correctives to Kuhn’s. While Lakatos has his own shortcomings, his general account of the methodologies of scientific research programs recognizes the role of reason in the transitions between theories and between research programs (Lakatos’ analog to Kuhn’s paradigms or disciplinary matrices). Lakatos presents science as an open ended enquiry, in which every theory may eventually be replaced by more adequate theories. For Lakatos, unlike Kuhn, rational scientific progress occurs when a new theory can account both for the apparent promise and for the actual failure of the theory it replaces.

The third conclusion of MacIntyre’s essay is that decisions to support some theories over others may be justified rationally to the extent that those theories allow us to understand our experience and our history, including the history of the failures of inadequate theories

For Aristotle, moral philosophy is a study of practical reasoning, and the excellences or virtues that Aristotle recommends in the Nicomachean Ethics are the intellectual and moral excellences that make a moral agent effective as an independent practical reasoner.

MacIntyre also finds that the contending parties have little interest in the rational justification of the principles they use. The language of moral philosophy has become a kind of moral rhetoric to be used to manipulate others in defense of the arbitrary choices of its users

examining the current condition of secular moral and political discourse. MacIntyre finds contending parties defending their decisions by appealing to abstract moral principles, but he finds their appeals eclectic, inconsistent, and incoherent.

The secular moral philosophers of the eighteenth and nineteenth centuries shared strong and extensive agreements about the content of morality (AV, p. 51) and believed that their moral philosophy could justify the demands of their morality rationally, free from religious authority.

MacIntyre traces the lineage of the culture of emotivism to the secularized Protestant cultures of northern Europe

Modern moral philosophy had thus set for itself an incoherent goal. It was to vindicate both the moral autonomy of the individual and the objectivity, necessity, and categorical character of the rules of morality

MacIntyre turns to an apparent alternative, the pragmatic expertise of professional managers. Managers are expected to appeal to the facts to make their decisions on the objective basis of effectiveness, and their authority to do this is based on their knowledge of the social sciences

An examination of the social sciences reveals, however, that many of the facts to which managers appeal depend on sociological theories that lack scientific status. Thus, the predictions and demands of bureaucratic managers are no less liable to ideological manipulation than the determinations of modern moral philosophers.

Modern moral philosophy separates moral reasoning about duties and obligations from practical reasoning about ends and practical deliberation about the means to one’s ends, and in doing so it separates morality from practice.

Many Europeans also lost the practical justifications for their moral norms as they approached modernity; for these Europeans, claiming that certain practices are “immoral,” and invoking Kant’s categorical imperative or Mill’s principle of utility to explain why those practices are immoral, seems no more adequate than the Polynesian appeal to taboo.

MacIntyre sifts these definitions and then gives his own definition of virtue, as excellence in human agency, in terms of practices, whole human lives, and traditions in chapters 14 and 15 of AV.

In the most often quoted sentence of AV, MacIntyre defines a practice as (1) a complex social activity that (2) enables participants to gain goods internal to the practice. (3) Participants achieve excellence in practices by gaining the internal goods. When participants achieve excellence, (4) the social understandings of excellence in the practice, of the goods of the practice, and of the possibility of achieving excellence in the practice “are systematically extended”

Practices, like chess, medicine, architecture, mechanical engineering, football, or politics, offer their practitioners a variety of goods both internal and external to these practices. The goods internal to practices include forms of understanding or physical abilities that can be acquired only by pursuing excellence in the associated practice

Goods external to practices include wealth, fame, prestige, and power; there are many ways to gain these external goods. They can be earned or purchased, either honestly or through deception; thus the pursuit of these external goods may conflict with the pursuit of the goods internal to practices.

An intelligent child is given the opportunity to win candy by learning to play chess. As long as the child plays chess only to win candy, he has every reason to cheat if by doing so he can win more candy. If the child begins to desire and pursue the goods internal to chess, however, cheating becomes irrational, because it is impossible to gain the goods internal to chess or any other practice except through an honest pursuit of excellence. Goods external to practices may nevertheless remain tempting to the practitioner.

Since MacIntyre finds social identity necessary for the individual, MacIntyre’s definition of the excellence or virtue of the human agent needs a social dimension:

These responsibilities also include debts incurred by the unjust actions of ones’ predecessors.

The enslavement and oppression of black Americans, the subjugation of Ireland, and the genocide of the Jews in Europe remained quite relevant to the responsibilities of citizens of the United States, England, and Germany in 1981, as they still do today.

Thus an American who said “I never owned any slaves,” “the Englishman who says ‘I never did any wrong to Ireland,’” or “the young German who believes that being born after 1945 means that what Nazis did to Jews has no moral relevance to his relationship to his Jewish contemporaries” all exhibit a kind of intellectual and moral failure.

“I am born with a past, and to cut myself off from that past in the individualist mode, is to deform my present relationships” (p. 221).  For MacIntyre, there is no moral identity for the abstract individual; “The self has to find its moral identity in and through its membership in communities” (p. 221).

The first question the collaboration is tackling focuses on decision-making by the brain.

By collating information from the eyes, the ears and so on, the association areas may give a more coherent, big-picture view of what’s happening in the world.

Then, there’s the frontal cortex, which is believed to play a role in controlling voluntary action. Research suggests it’s involved in committing to a particular action once enough incoming information has arrived.

Research on decision-making may also inform treatment of patients with other disorders, such as substance abuse and addiction. Indeed, addiction is perhaps a prime example of how decision-making can go very wrong.

In real-world decisions, you’re combining lots of different pieces of information – your sensory signals, your internal knowledge about what’s rewarding, what’s risky.

Even in the simplest, very earliest stage we’re looking at, where the animals are just making voluntary movements, they’re deciding when to make a movement to harvest a reward

It has been found that if doctors are trained how to translate conditional probabilities into natural frequencies, the ability of the doctors to communicate the risk to their patients goes up dramatically. Just imagine the huge difference this can make to customer satisfaction in the healthcare business.

This is one key feature of the faith-based presidency: open dialogue, based on facts, is not seen as something of inherent value. It may, in fact, create doubt, which undercuts faith. It could result in a loss of confidence in the decision-maker and, just as important, by the decision-maker.

has spent a lot of time trying to size up the president. ''Most successful people are good at identifying, very early, their strengths and weaknesses, at knowing themselves,'' he told me not long ago. ''For most of us average Joes, that meant we've relied on strengths but had to work on our weakness -- to lift them to adequacy -- otherwise they might bring us down. I don't think the president really had to do that, because he always had someone there -- his family or friends -- to bail him out. I don't think, on balance, that has served him well for the moment he's in now as president. He never seems to have worked on his weaknesses.''

Details vary, but here's the gist of what I understand took place. George W., drunk at a party, crudely insulted a friend of his mother's. George senior and Barbara blew up. Words were exchanged along the lines of something having to be done. George senior, then the vice president, dialed up his friend, Billy Graham, who came to the compound and spent several days with George W. in probing exchanges and walks on the beach. George W. was soon born again. He stopped drinking, attended Bible study and wrestled with issues of fervent faith. A man who was lost was saved.

Rubenstein described that time to a convention of pension managers in Los Angeles last year, recalling that Malek approached him and said: ''There is a guy who would like to be on the board. He's kind of down on his luck a bit. Needs a job. . . . Needs some board positions.'' Though Rubenstein didn't think George W. Bush, then in his mid-40's, ''added much value,'' he put him on the Caterair board. ''Came to all the meetings,'' Rubenstein told the conventioneers. ''Told a lot of jokes. Not that many clean ones. And after a while I kind of said to him, after about three years: 'You know, I'm not sure this is really for you. Maybe you should do something else. Because I don't think you're adding that much value to the board. You don't know that much about the company.' He said: 'Well, I think I'm getting out of this business anyway. And I don't really like it that much. So I'm probably going to resign from the board.' And I said thanks. Didn't think I'd ever see him again.''

challenges -- from either Powell or his opposite number as the top official in domestic policy, Paul O'Neill -- were trials that Bush had less and less patience for as the months passed. He made that clear to his top lieutenants. Gradually, Bush lost what Richard Perle, who would later head a largely private-sector group under Bush called the Defense Policy Board Advisory Committee, had described as his open posture during foreign-policy tutorials prior to the 2000 campaign. (''He had the confidence to ask questions that revealed he didn't know very much,'' Perle said.) By midyear 2001, a stand-and-deliver rhythm was established. Meetings, large and small, started to take on a scripted quality.

That a deep Christian faith illuminated the personal journey of George W. Bush is common knowledge. But faith has also shaped his presidency in profound, nonreligious ways. The president has demanded unquestioning faith from his followers, his staff, his senior aides and his kindred in the Republican Party. Once he makes a decision -- often swiftly, based on a creed or moral position -- he expects complete faith in its rightness.

A cluster of particularly vivid qualities was shaping George W. Bush's White House through the summer of 2001: a disdain for contemplation or deliberation, an embrace of decisiveness, a retreat from empiricism, a sometimes bullying impatience with doubters and even friendly questioners.

By summer's end that first year, Vice President Dick Cheney had stopped talking in meetings he attended with Bush. They would talk privately, or at their weekly lunch. The president was spending a lot of time outside the White House, often at the ranch, in the presence of only the most trustworthy confidants.

''When I was first with Bush in Austin, what I saw was a self-help Methodist, very open, seeking,'' Wallis says now. ''What I started to see at this point was the man that would emerge over the next year -- a messianic American Calvinist. He doesn't want to hear from anyone who doubts him.''

, I had a meeting with a senior adviser to Bush. He expressed the White House's displeasure, and then he told me something that at the time I didn't fully comprehend -- but which I now believe gets to the very heart of the Bush presidency.

The aide said that guys like me were ''in what we call the reality-based community,'' which he defined as people who ''believe that solutions emerge from your judicious study of discernible reality.'' I nodded and murmured something about enlightenment principles and empiricism. He cut me off. ''That's not the way the world really works anymore,'' he continued. ''We're an empire now, and when we act, we create our own reality. And while you're studying that reality -- judiciously, as you will -- we'll act again, creating other new realities, which you can study too, and that's how things will sort out. We're history's actors . . . and you, all of you, will be left to just study what we do.''

''If you operate in a certain way -- by saying this is how I want to justify what I've already decided to do, and I don't care how you pull it off -- you guarantee that you'll get faulty, one-sided information,'' Paul O'Neill, who was asked to resign his post of treasury secretary in December 2002, said when we had dinner a few weeks ago. ''You don't have to issue an edict, or twist arms, or be overt.''

George W. Bush and his team have constructed a high-performance electoral engine. The soul of this new machine is the support of millions of likely voters, who judge his worth based on intangibles -- character, certainty, fortitude and godliness -- rather than on what he says or does.

And, of course, our eyes dart around during the ‘rapid eye movement’ (REM) phase of sleep.

Research published last year shows that pupil dilation is linked to the degree of uncertainty during decision-making: if somebody is less sure about their decision, they feel heightened arousal, which causes the pupils to dilate

Watching the eyes can even help predict what number a person has in mind. Tobias Loetscher and his colleagues at the University of Zurich recruited 12 volunteers and tracked their eye movements while they reeled off a list of 40 numbers.

They found that the direction and size of the participants’ eye movements accurately predicted whether the number they were about to say was bigger or smaller than the previous one – and by how much.

Each volunteer’s gaze shifted up and to the right just before they said a bigger number, and down and to the left before a smaller one. The bigger the shift from one side to the other, the bigger the difference between the numbers.

The ubiquity of eye-tracking apps for smartphones and other hand-held devices raises the possibility of altering people’s decision-making process remotely. “If you’re shopping online, they might bias your decision by offering f

Kimberley Ann Perkins O'Connor, who captured part of the incident on her phone, told CNN she overheard the boy joking to his mother about going into the water. Then, suddenly, there he was, being dragged by Harambe.

Some suggested the boy's parents should be held criminally responsible for the incident. An online petition seeking "Justice for Harambe" earned more than 100,000 signatures in less than 48 hours.

"We had a very difficult situation and we made a difficult call at the end. I'm not here to point fingers about fault," he said.

"We live in the real world, we make real decisions. People and kids can climb over barriers. We work hard to make sure this zoo is safe. People can climb over barriers, that's what happened."

Western lowland gorillas are critically endangered in the wild, numbering fewer than 175,000, according to the zoo. An additional 765 gorillas dwell in zoos worldwide.

Harambe was put down, a decision that left many wondering if the zoo was too quick to shoot.

Although it was the first incident of its kind at Cincinnati Zoo's Gorilla World exhibit since it opened in 1978, similar cases have occurred with very different outcomes.

The footage shows Jambo, a male gorilla, approaching the boy as if to check on him, extending a hand to stroke his back. When Merritt comes to, wailing, Jambo, seemingly startled by the cries, sets off in a different direction. Zookeepers immediately move in to save the boy.

This time, a female gorilla named Binti Jua picked up the unconscious boy, while carrying her own infant on her back, and guarded him from other gorillas.

not always the gentle giants the world saw in these two cases -- the animal advocacy group People for the Ethical Treatment of Animals said the larger concept of zoos is the root of the problem.

Maynard said the zoo plans to reopen the exhibit to the public after a thorough assessment.

they’re also used as talking points by politicians who are working to make it more difficult for the EPA and other federal agencies to use science in their regulatory decision-making, under the guise of basing policy on “sound science.” Science’s virtues are being wielded against it.

What distinguishes the two calls for transparency is intent: Whereas the “open science” movement aims to make science more reliable, reproducible and robust, proponents of “sound science” have historically worked to amplify uncertainty, create doubt and undermine scientific discoveries that threaten their interests.

“Our criticisms are founded in a confidence in science,” said Steven Goodman, co-director of the Meta-Research Innovation Center at Stanford and a proponent of open science. “That’s a fundamental difference — we’re critiquing science to make it better. Others are critiquing it to devalue the approach itself.”

alls to base public policy on “sound science” seem unassailable if you don’t know the term’s history. The phrase was adopted by the tobacco industry in the 1990s to counteract mounting evidence linking secondhand smoke to cancer.

The sound science tactic exploits a fundamental feature of the scientific process: Science does not produce absolute certainty. Contrary to how it’s sometimes represented to the public, science is not a magic wand that turns everything it touches to truth. Instead, it’s a process of uncertainty reduction, much like a game of 20 Questions.

Any given study can rarely answer more than one question at a time, and each study usually raises a bunch of new questions in the process of answering old ones. “Science is a process rather than an answer,” said psychologist Alison Ledgerwood of the University of California, Davis. Every answer is provisional and subject to change in the face of new evidence. It’s not entirely correct to say that “this study proves this fact,” Ledgerwood said. “We should be talking instead about how science increases or decreases our confidence in something.”

While insisting that they merely wanted to ensure that public policy was based on sound science, tobacco companies defined the term in a way that ensured that no science could ever be sound enough. The only sound science was certain science, which is an impossible standard to achieve.

“Doubt is our product,” wrote one employee of the Brown & Williamson tobacco company in a 1969 internal memo. The note went on to say that doubt “is the best means of competing with the ‘body of fact’” and “establishing a controversy.” These strategies for undermining inconvenient science were so effective that they’ve served as a sort of playbook for industry interests ever since

Doubt merchants aren’t pushing for knowledge, they’re practicing what Proctor has dubbed “agnogenesis” — the intentional manufacture of ignorance. This ignorance isn’t simply the absence of knowing something; it’s a lack of comprehension deliberately created by agents who don’t want you to know,

In the hands of doubt-makers, transparency becomes a rhetorical move. “It’s really difficult as a scientist or policy maker to make a stand against transparency and openness, because well, who would be against it?

But at the same time, “you can couch everything in the language of transparency and it becomes a powerful weapon.” For instance, when the EPA was preparing to set new limits on particulate pollution in the 1990s, industry groups pushed back against the research and demanded access to primary data (including records that researchers had promised participants would remain confidential) and a reanalysis of the evidence. Their calls succeeded and a new analysis was performed. The reanalysis essentially confirmed the original conclusions, but the process of conducting it delayed the implementation of regulations and cost researchers time and money.

Delay is a time-tested strategy. “Gridlock is the greatest friend a global warming skeptic has,” said Marc Morano, a prominent critic of global warming research

which has received funding from the oil and gas industry. “We’re the negative force. We’re just trying to stop stuff.”

these ploys are getting a fresh boost from Congress. The Data Quality Act (also known as the Information Quality Act) was reportedly written by an industry lobbyist and quietly passed as part of an appropriations bill in 2000. The rule mandates that federal agencies ensure the “quality, objectivity, utility, and integrity of information” that they disseminate, though it does little to define what these terms mean. The law also provides a mechanism for citizens and groups to challenge information that they deem inaccurate, including science that they disagree with. “It was passed in this very quiet way with no explicit debate about it — that should tell you a lot about the real goals,” Levy said.

in the 20 months following its implementation, the act was repeatedly used by industry groups to push back against proposed regulations and bog down the decision-making process. Instead of deploying transparency as a fundamental principle that applies to all science, these interests have used transparency as a weapon to attack very particular findings that they would like to eradicate.

Now Congress is considering another way to legislate how science is used. The Honest Act, a bill sponsored by Rep. Lamar Smith of Texas,3The bill has been passed by the House but still awaits a vote in the Senate. is another example of what Levy calls a “Trojan horse” law that uses the language of transparency as a cover to achieve other political goals. Smith’s legislation would severely limit the kind of evidence the EPA could use for decision-making. Only studies whose raw data and computer codes were publicly available would be allowed for consideration.

It might seem like an easy task to sort good science from bad, but in reality it’s not so simple. “There’s a misplaced idea that we can definitively distinguish the good from the not-good science, but it’s all a matter of degree,” said Brian Nosek, executive director of the Center for Open Science. “There is no perfect study.” Requiring regulators to wait until they have (nonexistent) perfect evidence is essentially “a way of saying, ‘We don’t want to use evidence for our decision-making,’

ost scientific controversies aren’t about science at all, and once the sides are drawn, more data is unlikely to bring opponents into agreement.

objective knowledge is not enough to resolve environmental controversies. “While these controversies may appear on the surface to rest on disputed questions of fact, beneath often reside differing positions of value; values that can give shape to differing understandings of what ‘the facts’ are.” What’s needed in these cases isn’t more or better science, but mechanisms to bring those hidden values to the forefront of the discussion so that they can be debated transparently. “As long as we continue down this unabashedly naive road about what science is, and what it is capable of doing, we will continue to fail to reach any sort of meaningful consensus on these matters,”

The dispute over tobacco was never about the science of cigarettes’ link to cancer. It was about whether companies have the right to sell dangerous products and, if so, what obligations they have to the consumers who purchased them.

Similarly, the debate over climate change isn’t about whether our planet is heating, but about how much responsibility each country and person bears for stopping it

While researching her book “Merchants of Doubt,” science historian Naomi Oreskes found that some of the same people who were defending the tobacco industry as scientific experts were also receiving industry money to deny the role of human activity in global warming. What these issues had in common, she realized, was that they all involved the need for government action. “None of this is about the science. All of this is a political debate about the role of government,”

These controversies are really about values, not scientific facts, and acknowledging that would allow us to have more truthful and productive debates. What would that look like in practice? Instead of cherry-picking evidence to support a particular view (and insisting that the science points to a desired action), the various sides could lay out the values they are using to assess the evidence.

For instance, in Europe, many decisions are guided by the precautionary principle — a system that values caution in the face of uncertainty and says that when the risks are unclear, it should be up to industries to show that their products and processes are not harmful, rather than requiring the government to prove that they are harmful before they can be regulated. By contrast, U.S. agencies tend to wait for strong evidence of harm before issuing regulations

the difference between them comes down to priorities: Is it better to exercise caution at the risk of burdening companies and perhaps the economy, or is it more important to avoid potential economic downsides even if it means that sometimes a harmful product or industrial process goes unregulated?

But science can’t tell us how risky is too risky to allow products like cigarettes or potentially harmful pesticides to be sold — those are value judgements that only humans can make.

It can occur when a physician refuses to consider alternative diagnoses once an initial diagnosis has been established, despite contradicting data, such as lab results. This bias leads physicians to see what they want to see

Anchoring bias is closely related to confirmation bias and comes into play when interpreting evidence. It refers to physicians’ practices of prioritizing information and data that support their initial impressions, even when first impressions are wrong

When physicians move from deliberation to action, they are sometimes swayed by emotional reactions rather than rational deliberation about risks and benefits. This is called the affect heuristic, and, while heuristics can often serve as efficient approaches to problem solving, they can sometimes lead to bias

Further down the treatment pathway, outcomes bias can come into play. This bias refers to the practice of believing that good or bad results are always attributable to prior decisions, even when there is no valid reason to do so

The dual-process theory, a cognitive model of reasoning, can be particularly relevant in matters of clinical decision making

This theory is based on the argument that we use 2 different cognitive systems, intuitive and analytical, when reasoning. The former is quick and uses information that is readily available; the latter is slower and more deliberate.

Consideration should be given to the difficulty physicians face in employing analytical thinking exclusively. Beyond constraints of time, information, and resources, many physicians are also likely to be sleep deprived, work in an environment full of distractions, and be required to respond quickly while managing heavy cognitive loads

Simply increasing physicians’ familiarity with the many types of cognitive biases—and how to avoid them—may be one of the best strategies to decrease bias-related errors

The same review suggests that cognitive forcing strategies may also have some success in improving diagnostic outcomes

Afterwards, the resident physicians were debriefed on both case-specific details and on cognitive forcing strategies, interviewed, and asked to complete a written survey. The results suggested that resident physicians further along in their training (ie, postgraduate year three) gained more awareness of cognitive strategies than resident physicians in earlier years of training, suggesting that this tool could be more useful after a certain level of training has been completed

A 2013 study examined the effect of a 3-part, 1-year curriculum on recognition and knowledge of cognitive biases and debiasing strategies in second-year residents

Cognitive biases in clinical practice have a significant impact on care, often in negative ways. They sometimes manifest as physicians seeing what they want to see rather than what is actually there. Or they come into play when physicians make snap decisions and then prioritize evidence that supports their conclusions, as opposed to drawing conclusions from evidence

Fortunately, cognitive psychology provides insight into how to prevent biases. Guided reflection and cognitive forcing strategies deflect bias through close examination of our own thinking processes.

During medical education and consistently thereafter, we must provide physicians with a full appreciation of the cost of biases and the potential benefits of combatting them.

Perhaps the strangest idea to emerge in the past couple of days, though, is that these services are only now beginning to exert control over what we see. Representative Doug Collins, Republican of Georgia, made this point in a letter to Mark Zuckerberg, the chief executive of Facebook, in which he derided the social network for using “its monopoly to control what news Americans have access to.”

That leaves the companies in a precarious spot. They are criticized when they allow misinformation to spread. They are also criticized when they try to prevent it.

On Wednesday, several prominent Republicans, including Mr. Trump, repeated their calls for Congress to repeal Section 230 of the Communications Decency Act, a law that shields tech platforms from many lawsuits over user-generated content.

The truth, of course, is that tech platforms have been controlling our information diets for years, whether we realized it or not. Their decisions were often buried in obscure “community standards” updates, or hidden in tweaks to the black-box algorithms that govern which posts users see.

Their leaders have always been editors masquerading as engineers.

What’s happening now is simply that, as these companies move to rid their platforms of bad behavior, their influence is being made more visible.

Rather than letting their algorithms run amok (which is an editorial choice in itself), they’re making high-stakes decisions about flammable political misinformation in full public view, with human decision makers who can be debated and held accountable for their choices.

After years of inaction, Facebook and Twitter are finally starting to clean up their messes. And in the process, they’re enraging the powerful people who have thrived under the old system.

we somehow link abstract number representations in the brain with movement in space.

“When people are looking at scenes they have encountered before, their eyes are frequently drawn to information they have already seen, even when they have no conscious memory of it,”

those who were allowed to move their eyes spontaneously during recall performed significantly better than those who fixed on the cross.

participants who were told to fix their gaze in the corner of the screen in which objects had appeared earlier performed better than those told to fix their gaze in another corner.

which comes first: whether thinking of a particular number causes changes in eye position, or whether the eye position influences our mental activity.

One recent study showed – maybe worryingly – that eye-tracking can be exploited to influence the moral decisions we take.

“We think of persuasive people as good talkers, but maybe they’re also observing the decision-making process,”

“Maybe good salespeople can spot the exact moment you’re wavering towards a certain choice, and then offer you a discount or change their pitch.”

eye movements can both reflect and influence higher mental functions such as memory and decision-making

This knowledge may give us ways of improving our mental functions – but it also leaves us vulnerable to subtle manipulation by other people.

“The eyes are like a window into our thought processes, and we just don’t appreciate how much information might be leaking out of them,

The IBL hopes to overcome these flaws. Scientists on the project will work on exactly the same problems in precisely the same way. Animal experiments, for example, will use one strain of mouse, and all will be trained, tested and scored in the same way. It is an obvious strategy, but not a common one in science: in any lab, there is a constant urge to tweak experiments to make them better. “Ultimately, the reason it’s worth addressing is in the proverb: ‘alone we go fast, together we go far’,” said Churchland.

Decision-making is a field in itself, so IBL researchers will focus on simple, so-called perceptual decisions: those that involve responding to sights or sounds, for example. In one standard test, scientists will record how neurons fire in mice as they watch faint dots appear on a screen and spin a Lego wheel to indicate if the dots are on the left or the right. The mice make mistakes when the dots are faint, and it is these marginal calls that are most interesting to scientists.

Since your initial research indicated that $27,000 was the average price, the first offer you encountered seemed like a great deal. You overlooked further information, such as the possibility that other dealers might have lower prices, and made a decision on the information you already had, which served as an anchoring point in your mind.

Imagine that you are trying to negotiate a pay raise with your boss. You might hesitate to make an initial offer, but research suggests that being the first one to lay your cards down on the table might actually be the best way to go. Whoever makes that first offer has the edge since the anchoring effect will essentially make that number the starting point for all further negotiations. Not only that, it will bias those negotiations in your favor. That first offer helps establish a range of acceptable counteroffers, and any future offers will use that initial number as an anchor or focal point.

How much television should your children watch each day? If you watched a great deal of TV as a kid, it might seem more acceptable for your kids to be glued to the television for hours each day.

While the physical sciences produce many detailed and precise predictions, the social sciences do not.  The reason is that such predictions almost always require randomized controlled experiments, which are seldom possible when people are involved.  For one thing, we are too complex: our behavior depends on an enormous number of tightly interconnected variables that are extraordinarily difficult to  distinguish and study separately

Without a strong track record of experiments leading to successful predictions, there is seldom a basis for taking social scientific results as definitive

our policy discussions should simply ignore social scientific research.  We should, as Manzi himself proposes, find ways of injecting more experimental data into government decisions.  But above all, we need to develop a much better sense of the severely limited reliability of social scientific results.   Media reports of research should pay far more attention to these limitations, and scientists reporting the results need to emphasize what they don’t show as much as what they do.

Given the limited predictive success and the lack of consensus in social sciences, their conclusions can seldom be primary guides to setting policy.  At best, they can supplement the general knowledge, practical experience, good sense and critical intelligence that we can only hope our political leaders will have.

How much authority should we give to such work in our policy decisions?  The question is important because media reports often seem to assume that any result presented as “scientific” has a claim to our serious attention.

Without a strong track record of experiments leading to successful predictions, there is seldom a basis for taking social scientific results as definitive

our policy discussions should simply ignore social scientific research.  We should, as Manzi himself proposes, find ways of injecting more experimental data into government decisions.  But above all, we need to develop a much better sense of the severely limited reliability of social scientific results.   Media reports of research should pay far more attention to these limitations, and scientists reporting the results need to emphasize what they don’t show as much as what they do

our policy discussions should simply ignore social scientific research.  We should, as Manzi himself proposes, find ways of injecting more experimental data into government decisions.  But above all, we need to develop a much better sense of the severely limited reliability of social scientific results.   Media reports of research should pay far more attention to these limitations, and scientists reporting the results need to emphasize what they don’t show as much as what they do.

Social sciences may be surrounded by the “paraphernalia” of the natural sciences, such as technical terminology, mathematical equations, empirical data and even carefully designed experiments. 

Given the limited predictive success and the lack of consensus in social sciences, their conclusions can seldom be primary guides to setting policy.  At best, they can supplement the general knowledge, practical experience, good sense and critical intelligence that we can only hope our political leaders will have.

There aren’t many explicit references to baseball in “Thinking, Fast and Slow,” yet many executives swear by it

“From coaches to front office people, some get back to me and say this has changed their life. They never look at decisions the same way.

A few, though, swear by it. Andrew Friedman, the president of baseball operations for the Dodgers, recently cited the book as having “a real profound impact,” and said he reflects back on it when evaluating organizational processes. Keith Law, a former executive for the Toronto Blue Jays, wrote the book “Inside Game” — an examination of bias and decision-making in baseball — that was inspired by “Thinking, Fast and Slow.”

“As the decision tree in baseball has changed over time, this helps all of us better understand why it needed to change,” Mozeliak wrote in an email. He said that was especially true when “working in a business that many decisions are based on what we see, what we remember, and what is intuitive to our thinking.”

The central thesis of Kahneman’s book is the interplay between each mind’s System 1 and System 2, which he described as a “psychodrama with two characters.”

System 1 is a person’s instinctual response — one that can be enhanced by expertise but is automatic and rapid. It seeks coherence and will apply relevant memories to explain events.

System 2, meanwhile, is invoked for more complex, thoughtful reasoning — it is characterized by slower, more rational analysis but is prone to laziness and fatigue.

Kahneman wrote that when System 2 is overloaded, System 1 could make an impulse decision, often at the expense of self-control

No area of baseball is more susceptible to bias than scouting, in which organizations aggregate information from disparate sources:

“The independent opinion aspect is critical to avoid the groupthink and be aware of momentum,”

Matt Blood, the director of player development for the Orioles, first read “Thinking, Fast and Slow” as a Cardinals area scout nine years ago and said that he still consults it regularly. He collaborated with a Cardinals analyst to develop his own scouting algorithm as a tripwire to mitigate bias

Mejdal himself fell victim to the trap of the representativeness heuristic when he started with the Cardinals in 2005

Duke offers a road map for creating a group “decision pod” that can provide us with feedback. Focus on accuracy, accountability, and openness to diverse views. Set clear rules: Court dissent and differing perspectives, and take responsibility even when doing so is painful.

formed to improve viewpoint diversity in academia: Commit to transparency and sharing information; apply consistent standards to claims made by separating information from who is providing it; cultivate disinterestedness; seek “outcome blindness” to the hypothesis being tested; and encourage skepticism and dissent.

Duke explores how we can reduce conflict by shifting perspective among our past, present and futures selves via “mental time travel.” She suggests several techniques, including backcasting, premortems, and Ulysses contracts.

Duke also addresses how we outweigh the present over the future. When we reach for a donut instead of an apple, we’re doing so at the expense of our future self

the sunk cost fallacy leads us to miss or ignore the logical facts presented to us, and instead make irrational decisions based on our emotions—without even realizing we’re doing so

Numerous environmental statutes mandate that government agencies consider “the best available science” when making decisions. And agencies routinely consult with scientific experts to fullfill such mandates.

Such provisions work reasonably well when science offers clear and simple, black-and-white answers. But when there is uncertainty, is the expectation of scientific objectivity realistic?

To gain insight into what role bias may play in listing decisions, we surveyed a group of grizzly bear researchers. We found that experts’ judgments were associated with a number of factors outside the “best commercial and scientific data,” including their professional affiliations and social norms. Furthermore, we found that while there is no consensus in the scientific community regarding the threats to grizzly bears, the majority of scientists support continued listing.