We normally take it for granted that other people will live on after we ourselves have died. Even if we do not believe in a personal afterlife in which we survive our own deaths, we assume that there will be a "collective afterlife" in which humanity survives long after we are gone. Samuel Scheffler maintains that this assumption plays a surprising - indeed astonishing - role in our lives.

What are the features of a good scientific theory? Samuel Schindler's book revisits this classical question in the philosophy of science and develops new answers to it. Theoretical virtues matter not only for choosing theories 'to work with', but also for what we are justified in believing: only if the theories we possess are good ones can we be confident that our theories' claims about nature are actually correct. Recent debates have focussed rather narrowly on a theory's capacity to (...) predict new phenomena successfully, but Schindler argues that the justification for this focus is thin. He discusses several other theory properties such as testability, accuracy, and consistency, and highlights the importance of simplicity and coherence. Using detailed historical case studies and careful philosophical analysis, Schindler challenges the received view of theoretical virtues and advances arguments for the view that science uncovers reality through theory. (shrink)

"Adam Smith is widely regarded as the founder of political economy and one of the great thinkers of the Enlightenment period. Best-known for his founding work of economics, The Wealth of Nations, Smith's thought engaged equally with the nature of morality, above all in his Theory of Moral Sentiments. Smith's brilliance leaves us with an important question, however: Was he first and foremost a moral philosopher, who happened to turn to economics for part of his career? In this outstanding philosophical (...) introduction Samuel Fleischacker argues that Smith is a superb example of the broadly curious thinkers who flourished in the Enlightenment; one for whom morality, politics and economics were just a few of the many fascinating subjects that could be illuminated by naturalistic modes of investigation. After a helpful overview of his life and work, Fleischacker examines the full range of Smith's thought, including: epistemology, philosophy of science and aesthetics, moral sentimentalism, moral approval, sympathy, and judgement, the character of virtue advantages and disadvantages of Smith's moral philosophy, Smith's views on religion, justice and jurisprudence, governmental policy, economic principles, Smith's philosophical legacy and his place in the history of liberalism. Including chapter summaries, suggestions for further reading and a glossary, Adam Smith is essential reading for those studying ethics, political philosophy, the history of philosophy, and the Enlightenment, as well as those reading Smith in related disciplines such as economics, law and religion"--. (shrink)

According to the Reasoning View about normative reasons, facts about normative reasons for action can be understood in terms of facts about the norms of practical reasoning. I argue that this view is subject to an overlooked class of counterexamples, familiar from debates about Subjectivist theories of normative reasons. Strikingly, the standard strategy Subjectivists have used to respond to this problem cannot be adapted to the Reasoning View. I think there is a solution to this problem, however. I argue that (...) the norms of practical reasoning, like the norms of theoretical reasoning, are characteristically defeasible, in a sense I make precise. Recognizing this property of those norms makes space for a solution to the problem. The resulting view is in a way analogous to the familiar defeasibility theory of knowledge, but it avoids a standard objection to that theory. (shrink)

The leading reductive approaches to shared agency model that phenomenon in terms of complexes of individual intentions, understood as plan-laden commitments. Yet not all agents have such intentions, and non-planning agents such as small children and some non-human animals are clearly capable of sophisticated social interactions. But just how robust are their social capacities? Are non-planning agents capable of shared agency? Existing theories of shared agency have little to say about these important questions. I address this lacuna by developing a (...) reductive account of the social capacities of non-planning agents, which I argue supports the conclusion that they can enjoy shared agency. The resulting discussion offers a fine-grained account of the psychological capacities that can underlie shared agency, and produces a recipe for generating novel hypotheses concerning why some agents do not engage in shared agency. (shrink)

Humans have always sought to change their environment—building houses, monuments, temples, and roads. In the process, they have remade the fabric of the world into newly functional objects that are also works of art to be admired. In this second edition of his popular Existential Pleasures of Engineering, Samuel Florman explores how engineers think and feel about their profession. A deeply insightful and refreshingly unique text, this book corrects the myth that engineering is cold and passionless. Indeed, Florman celebrates (...) engineering not only crucial and fundamental but also vital and alive he views it as a response to some of our deepest impulses, an endeavor rich in spiritual and sensual rewards. Opposing the "anti-technology" stance, Florman gives readers a practical, creative, and even amusing philosophy of engineering that boasts of pride in his craft. (shrink)

I describe and motivate Rational Internalism, a principle concerning the relationship between motivating reasons (which explain actions) and normative reasons (which justify actions). I use this principle to construct a novel argument against Objectivist theories of normative reasons, which hold that facts about normative reasons can be analyzed in terms of an independently specified class of normative or evaluative facts. I then argue for an alternative theory of normative reasons, the Reasoning View, which is consistent with both Rational Internalism and (...) one standard motivation for Objectivism. (shrink)

This morning I intended to get out of bed when my alarm went off. Hearing my alarm, I formed the intention to get up now. Yet, for a time, I remained in bed, irrationally lazy. It seems I irrationally failed to execute my intention. Such cases of execution failure pose a challenge for Mentalists about rationality, who believe that facts about rationality supervene on facts about the mind. For, this morning, my mind was in order; it was my action that (...) apparently made me irrational. What, then, should Mentalists say about the phenomenon of execution failure? The phenomenon of execution failure, and the puzzle it raises for Mentalists, have rarely been discussed. This paper addresses the puzzle in two parts. First, it argues that execution failure is a real phenomenon. It is possible for agents to irrationally fail to act on their present-directed intentions. It follows that Mentalists in the philosophy of action must solve the puzzle of explaining what is irrational about cases of execution failure. Second, this paper begins the search for such a solution. It considers six possible resolutions to the puzzle, arguing that none is obviously the most attractive. These resolutions include a requirement of overall conative consistency, an appeal to the norm of intention consistency, a form of Volitionalism, an appeal to factive mental states, and a proposal due to Garrett Cullity, and a novel requirement of proper functioning. (shrink)

Modern notions of empathy often celebrate its ability to bridge divides, to unite humankind. But how do we square this with the popular view that we can never truly comprehend the experience of being someone else? In this book, Samuel Fleischacker delves into the work of Adam Smith to draw out an understanding of empathy that respects both personal difference and shared humanity. After laying out a range of meanings for the concept of empathy, Fleischacker proposes that what Smith (...) called “sympathy” is very much what we today consider empathy. Smith’s version has remarkable value, as his empathy calls for entering into the perspective of another—a uniquely human feat that connects people while still allowing them to define their own distinctive standpoints. After discussing Smith’s views in relation to more recent empirical and philosophical studies, Fleischacker shows how turning back to Smith promises to enrich, clarify, and advance our current debates about the meaning and uses of empathy. (shrink)

John Rawls says: “The main problem of distributive justice is the choice of a social system.” Property-owning democracy is the social system that Rawls thought best realized the requirements of his principles of justice. This article discusses Rawls’s conception of property-owning democracy and how it is related to his difference principle. I explain why Rawls thought that welfare-state capitalism could not fulfill his principles: it is mainly because of the connection he perceived between capitalism and utilitarianism.

Can an AGI create a more intelligent AGI? Under idealized assumptions, for a certain theoretical type of intelligence, our answer is: “Not without outside help”. This is a paper on the mathematical structure of AGI populations when parent AGIs create child AGIs. We argue that such populations satisfy a certain biological law. Motivated by observations of sexual reproduction in seemingly-asexual species, the Knight-Darwin Law states that it is impossible for one organism to asexually produce another, which asexually produces another, and (...) so on forever: that any sequence of organisms (each one a child of the previous) must contain occasional multi-parent organisms, or must terminate. By proving that a certain measure (arguably an intelligence measure) decreases when an idealized parent AGI single-handedly creates a child AGI, we argue that a similar Law holds for AGIs. (shrink)

Legg and Hutter, as well as subsequent authors, considered intelligent agents through the lens of interaction with reward-giving environments, attempting to assign numeric intelligence measures to such agents, with the guiding principle that a more intelligent agent should gain higher rewards from environments in some aggregate sense. In this paper, we consider a related question: rather than measure numeric intelligence of one Legg- Hutter agent, how can we compare the relative intelligence of two Legg-Hutter agents? We propose an elegant answer (...) based on the following insight: we can view Legg-Hutter agents as candidates in an election, whose voters are environments, letting each environment vote (via its rewards) which agent (if either) is more intelligent. This leads to an abstract family of comparators simple enough that we can prove some structural theorems about them. It is an open question whether these structural theorems apply to more practical intelligence measures. (shrink)

We define a notion of the intelligence level of an idealized mechanical knowing agent. This is motivated by efforts within artificial intelligence research to define real-number intelligence levels of compli- cated intelligent systems. Our agents are more idealized, which allows us to define a much simpler measure of intelligence level for them. In short, we define the intelligence level of a mechanical knowing agent to be the supremum of the computable ordinals that have codes the agent knows to be codes (...) of computable ordinals. We prove that if one agent knows certain things about another agent, then the former necessarily has a higher intelligence level than the latter. This allows our intelligence no- tion to serve as a stepping stone to obtain results which, by themselves, are not stated in terms of our intelligence notion (results of potential in- terest even to readers totally skeptical that our notion correctly captures intelligence). As an application, we argue that these results comprise evidence against the possibility of intelligence explosion (that is, the no- tion that sufficiently intelligent machines will eventually be capable of designing even more intelligent machines, which can then design even more intelligent machines, and so on). (shrink)

At the core of Kant's ethics lies the claim that if there is a supreme principle of morality then it cannot be a principle based on utilitarianism or Aristotelian perfectionism or the Ten Commandments. The only viable candidate for such a principle is the categorical imperative. This book is the most detailed investigation of this claim. It constructs a new, criterial reading of Kant's derivation of one version of the categorical imperative: the Formula of Universal Law. This reading shows this (...) derivation to be far more compelling than contemporary philosophers tend to believe. It also reveals a novel approach to deriving another version of the categorical imperative, the Formula of Humanity, a principle widely considered to be the most attractive Kantian candidate for the supreme principle of morality. This book will be important not just for Kant scholars but for a broad swathe of students of philosophy. (shrink)

I argue that Spinoza endorses "conceptual dependence monism," the thesis that all forms of metaphysical dependence (such as causation, inherence, and existential dependence) are conceptual in kind. In the course of explaining the view, I further argue that it is actually presupposed in the proof for his more famed substance monism. Conceptual dependence monism also illuminates several of Spinoza’s most striking metaphysical views, including the intensionality of causal contexts, parallelism, metaphysical perfection, and explanatory rationalism. I also argue that this priority (...) of the conceptual does not commit Spinoza to forms of idealism or mentalism. The question of how to understand different kinds of metaphysical dependence is quite controversial in Spinoza studies; I address major alternative readings in the notes. But there I also try to draw connections to the growing debate in contemporary discussions about metaphysical dependence, as this topic is a happy point of shared interest between Spinoza and contemporary metaphysicians alike. (shrink)

This book examines three issues: the principle of ought implies can ; the principle of alternate possibilities ; and Kant’s views on the duty to promote one’s own happiness. It argues that although Kant was wrong to deny such a duty, the part of his denial that rests on a conception of duty incorporating both OIC and PAP is sound.

Miller, Truog, and Brock have recently argued that the “dead donor rule,” the requirement that donors be determined to be dead before vital organs are procured for transplantation, cannot withstand ethical scrutiny. In their view, the dead donor rule is inconsistent with existing life-saving practices of organ transplantation, lacks a cogent ethical rationale, and is not necessary for maintenance of public trust in organ transplantation. In this paper, the second of these claims will be evaluated. (The first and third are (...) not addressed.) The claim that the dead donor rule lacks a cogent ethical rationale will be shown to be an expression of the contemporary rejection of the moral significance of the traditional distinction between killing and allowing to die. The moral significance of this traditional distinction, and the associated norm that doctors should not kill their patients, will be defended, and this critique of it shown to be unsuccessful. (shrink)

It has long been argued that the institution of judicial review is incompatible with democratic institutions. This criticism usually relies on a procedural conception of democracy, according to which democracy is essentially a form of government defined by equal political rights and majority rule. I argue that if we see democracy not just as a form of government, but more basically as a form of sovereignty, then there is a way to conceive of judicial review as a legitimate democratic institution. (...) The conception of democracy that stems from the social contract tradition of Locke, Rousseau, Kant and Rawls, is based in an ideal of the equality, independence, and original political jurisdiction of all citizens. Certain equal basic rights, in addition to equal political rights, are a part of democratic sovereignty. In exercising their constituent power at the level of constitutional choice, free and equal persons could choose judicial review as one of the constitutional mechanisms for protecting their equal basic rights. As such, judicial review can be seen as a kind of shared precommitment by sovereign citizens to maintaining their equal status in the exercise of their political rights in ordinary legislative procedures. I discuss the conditions under which judicial review is appropriate in a constitutional democracy. This argument is contrasted with Hamilton's traditional argument for judicial review, based in separation of powers and the nature of judicial authority. I conclude with some remarks on the consequences for constitutional interpretation. (shrink)

This survey outlines a history of museums written through biographies of objects in their collections. First, the mechanics of the movement of things and the accompanying shifts in status are considered, from manufacture or growth through collecting and exchange to the museum. Objects gathered meanings through associations with people they encountered on their way to the collection, thus linking the history of museums to broader scientific and civic cultures. Next, the essay addresses the use of items once they joined a (...) collection, whether classificatory, analytical, or in display. By thus embedding the study of scientific practice in material culture, this approach contributes to constructivist histories of science. The final section addresses the role of objects in the experience of the visitors, emphasizing how fruitful the history of museum objects can be in the study of the public engagement with science. (shrink)

In the Formula of Humanity, Kant embraces the principle that it is wrong for us to treat others merely as means. For contemporary Kantian ethicists, this Mere Means Principle plays the role of a moral constraint: it limits what we may do, even in the service of promoting the overall good. But substantive interpretations of the principle generate implausible results in relatively ordinary cases. On one interpretation, for example, you treat your opponent in a tennis tournament merely as a means (...) and thus wrongly when you try, through defeating him, to win first place. The article aims to develop a reconstruction of the Mere Means Principle that has more plausible implications than do rival reconstructions. It sets out a sufficient condition for an agent's treating another merely as a means. This condition is intended to be Kantian, but not necessarily one that Kant endorses. (shrink)

After generalizing the Archimedean property of real numbers in such a way as to make it adaptable to non-numeric structures, we demonstrate that the real numbers cannot be used to accurately measure non-Archimedean structures. We argue that, since an agent with Artificial General Intelligence (AGI) should have no problem engaging in tasks that inherently involve non-Archimedean rewards, and since traditional reinforcement learning rewards are real numbers, therefore traditional reinforcement learning probably will not lead to AGI. We indicate two possible ways (...) traditional reinforcement learning could be altered to remove this roadblock. (shrink)

The publicity of a moral conception is a central idea in Kantian and contractarian moral theory. Publicity carries the idea of general acceptability of principles through to social relations. Without publicity of its moral principles, the intuitive attractiveness of the contractarian ideal seems diminished. For it means that moral principles cannot serve as principles of practical reasoning and justification among free and equal persons. This article discusses the role of the publicity assumption in Rawls’s and Scanlon’s contractualism. I contend that (...) a regard for publicity and a moral conception’s potential to provide a public basis for justification and agreement account for much of the evolution of Rawls’s account of justice after A Theory of Justice . I also discuss whether contractualism can provide a basis for justification and general agreement under the social conditions that it endorses. I contend that it cannot, and conclude with a discussion showing why this should not be a problem for contractualism. Despite appearances, contractualism is a distinctive form of contractarianism, substantially different from Rawls’s position and the social contract tradition out of which it evolved. Key Words: contractarianism • contractualism • John Rawls • public justification • T.M. Scanlon • justice. (shrink)

Reasons internalists claim that facts about normative reasons for action are facts about which actions would promote an agent’s goals and values. Reasons internalism is popular, even though paradigmatic versions have moral consequences many find unwelcome. This article reconstructs an influential but understudied argument for reasons internalism, the “if I were you” argument, which is due to Bernard Williams and Kate Manne. I raise an objection to the argument and argue that replying to it requires reasons internalists to accept controversial (...) metaethical or epistemological commitments with which their theory has not traditionally been associated. (shrink)

As G. A. Cohen’s camping trip argument shows, community is an important value. But is there anything particularly socialist about it? Critics suggest not. Jason Brennan argues that we don’t need socialist institutions to secure community; capitalist ones will do just fine. Louis-Philippe Hodgson argues, in a similar spirit, that we don’t need explicitly socialist principles to secure community; standard-issue liberal egalitarian ones (like Rawls’s) suffice. But these critics are mistaken. Pace Brennan, I show that capitalism inevitably runs roughshod over (...) community. Pace Hodgson, I show that Rawls’s justice as fairness cannot, absent explicitly socialist supplementation, adequately protect community. In sum, I show that advocates of community must also, and for that reason, be advocates for distinctively socialist principles and institutions. Or, in a slogan: no community without socialism. (shrink)

We construct a machine that knows its own code, at the price of not knowing its own factivity.

"Have the courage to use your own understanding! - that is the motto of enlightenment." - Immanuel Kant The Enlightenment is one of the most important and contested periods in the history of philosophy. The problems it addressed, such as the proper extent of individual freedom and the challenging of tradition, resonate as much today as when they were first debated. Of all philosophers, it is arguably Kant who took such questions most seriously, addressing them above all in his celebrated (...) short essay, An Answer to the Question: What is Enlightenment? In this engaging and lucid book, Samuel Fleischacker first explains and assesses Kant’s philosophy of Enlightenment. He then considers critics of Kant’s views - from Burke and Hegel to Horkheimer and Adorno - and figures he regards as having extended Kant’s notion of enlightenment, such as Feuerbach, Marx, Habermas, Foucault, and Rawls. Throughout, he demonstrates how Kant holds two distinct theories of enlightenment. On the one hand, Kant proposes a ‘minimal’ view, where to be enlightened is simply to engage in critical public discussion, allowing diversity of opinion to flourish. On the other, he argues that Kant elsewhere calls for a ‘maximal’ view of enlightenment, where, for example, an enlightened person cannot believe in a traditional religion. With great skill Fleischacker shows how these two views are taken in a multitude of directions by both critics and advocates of Kant’s philosophy. Arguing that Kant’s minimal enlightenment is a precondition for a healthy proliferation of cultures, religious faiths and political movements, What is Enlightenment? is a fascinating introduction to a key aspect of Kant’s thought and a compelling analysis of philosophical thinking about the Enlightenment. Including helpful chapter summaries and guides to further reading, it is ideal for anyone studying Kant or the philosophy of the Enlightenment, as well as those in related disciplines such as politics, history and religious studies. (shrink)

In Kant and Modern Political Philosophy, Katrin Flikschuh pursues two main aims. She tries to show that Kant’s theory of Right [Recht] is grounded in Kantian metaphysics. For example, we do not really understand Kant’s thought on property rights and cosmopolitanism unless we have in view its metaphysical underpinnings. Second, Flikschuh attempts to demonstrate the relevance of Kant’s theory of Right, especially as it is presented in Kant’s notoriously difficult Rechtslehre, to contemporary political concerns. In pursuing these aims she brings (...) to bear wide-ranging knowledge of scholarly work on Kant’s political and legal thought. (shrink)

Opponents of commerce in organs sometimes appeal to Kant’s Formula of Humanity to justify their position. Kant implies that anyone who sells an integral part of his body violates this principle and thereby acts wrongly. Although appeals to Kant’s Formula are apt, they are less helpful than they might be because they invoke the necessity of respecting the dignity of ends in themselves without specifying in detail what dignity is or what it means to respect it, and they cite the (...) wrongness of an agent’s treating another merely as a means without clarifying conditions under which this occurs. This paper crystallizes two different approaches to the Formula of Humanity and probes when, according to them, the principle would imply that it is wrong to engage in “live donor” transactions, in which someone chooses to undergo a kidney extraction in exchange for money. (shrink)

To be a liberal is, among other things, to grant basic liberties some degree of priority over other aspects of justice. But why do basic liberties warrant this special treatment? For Rawls, the answer has to do with the allegedly special connection between these freedoms and the ‘two moral powers’ of reasonableness and rationality. Basic freedoms are said to be preconditions for the development and exercise of these powers and are held to warrant priority over other justice-relevant values for that (...) reason. In the first half of the article I mount an internal critique of this Rawlsian line, arguing that it is flawed in two main ways. First, it overestimates the contribution of basic freedom to moral personality. Second, it underestimates the contribution of non-liberty resources to moral personality. In the second half of the article I repair these flaws. The result is a new, intriguingly radical version of justice as fairness, one with surprising—yet plausible—implications for economic and gender justice. (shrink)

We study the structure of families of theories in the language of arithmetic extended to allow these families to refer to one another and to themselves. If a theory contains schemata expressing its own truth and expressing a specific Turing index for itself, and contains some other mild axioms, then that theory is untrue. We exhibit some families of true self-referential theories that barely avoid this forbidden pattern.

A variation of Fitch’s paradox is given, where no special rules of inference are assumed, only axioms. These axioms follow from the familiar assumptions which involve rules of inference. We show (by constructing a model) that by allowing that possibly the knower doesn’t know his own soundness (while still requiring he be sound), Fitch’s paradox is avoided. Provided one is willing to admit that sound knowers may be ignorant of their own soundness, this might offer a way out of the (...) paradox. (shrink)

In The Sources of Normativity, Christine Korsgaard affirms that Enlightenment morality is true: humanity is valuable. To many of us few claims seem more obvious. Yet Enlightenment thinkers such as Kant do not limit themselves to affirming that humanity is valuable. They appeal to reason in an effort to establish it. They try to show that, in some sense, we are rationally compelled to recognize the value of humanity. Korsgaard joins in this effort. She champions the claim that unless we (...) take humanity to be valuable, we condemn ourselves to complete practical skepticism, i.e., to the view that we have no reason to do anything at all.Korsgaard discusses two arguments that, she believes, support this claim. The first she attributes directly to Kant in a series of influential papers on his ethics. The second argument, which she calls a ‘fancy new model’ of the first, she constructs under her own name in The Sources of Normativity. I will defend the view that neither of these arguments succeeds. In doing so, I will not be trying to show that we are mistaken in believing humanity to be valuable. (shrink)

This is the text of The Lindley Lecture for 1994, given by Samuel Scheffler, an American philosopher.

Do we live in a computer simulation? I will present an argument that the results of a certain experiment constitute empirical evidence that we do not live in, at least, one type of simulation. The type of simulation ruled out is very specific. Perhaps that is the price one must pay to make any kind of Popperian progress.

In the world of practical affairs the rights of individuals and the prerogatives of communities often lie in tension. Collectives pursue cultural aims at the expense of the minorities in their midst. Individuals assert their freedoms and deploy their wealth in ways that are inimical to the public interest. There is not one country in the world where some variation of this theme is not being played out. Recognizable communities clash with individuals, just as surely as other individuals do.

This chapter contains sections titled: What Are Fundamental Principles of Justice? Justice, Human Needs and Moral Capacities The Social Role of a Conception of Justice Justice and the Human Good Methodological Remarks Notes.

In Improvisation, Samuel Wells defines improvisation in the theater as "a practice through which actors seek to develop trust in themselves and one another in order that they may conduct unscripted dramas without fear." Sounds a lot like life, doesn't it? Building trust, overcoming fear, conducting relationships, and making choices--all without a script. Wells establishes theatrical improvisation as a model for Christian ethics, a matter of "faithfully improvising on the Christian tradition." He views the Bible not as a "script" (...) but as a "training school" that shapes the habits and practices of the Christian community. Drawing on scriptural narratives and church history, Wells explains six practices that characterize both improvisation and Christian ethics. His model of improvisation reinforces the goal of Christian ethics--to teach Christians to "embody their faith in the practices of discipleship all the time."--Publisher description. (shrink)

We argue that C. Darwin and more recently W. Hennig worked at times under the simplifying assumption of an eternal biosphere. So motivated, we explicitly consider the consequences which follow mathematically from this assumption, and the infinite graphs it leads to. This assumption admits certain clusters of organisms which have some ideal theoretical properties of species, shining some light onto the species problem. We prove a dualization of a law of T.A. Knight and C. Darwin, and sketch a decomposition result (...) involving the internodons of D. Kornet, J. Metz and H. Schellinx. A further goal of this paper is to respond to B. Sturmfels’ question, “Can biology lead to new theorems?”. (shrink)