This paper proves a precisification of Hume’s Law—the thesis that one cannot get an ought from an is—as an instance of a more general theorem which establishes several other philosophically interesting, though less controversial, barriers to logical consequence.

As global business operations expand, managers need more knowledge of foreign cultures, in particular, information on the ethics of doing business across borders. The purpose of this paper is twofold: to share the Islamic perspective on business ethics, little known in the west, which may stimulate further thinking and debate on the relationships between ethics and business, and to provide some knowledge of Islamic philosophy in order to help managers do business in Muslim cultures. The case of Egypt illustrates some (...) divergence between Islamic philosophy and practice in economic life. The paper concludes with managerial implications and suggestions for further research. (shrink)

Desire satisfactionists are united by their belief that what makes someone well-off is the satisfaction of their desires. But this commitment obscures a number of underlying differences, since there are several theoretical choice points on the way to making this commitment precise. This article is about two of the most important choice points. The first concerns an epistemic requirement on well-being. Suppose that one's desire that P is satisfied. Must one also know (or believe, or justifiably believe) that one's desire (...) that P is satisfied in order to benefit from P? If so, there is an epistemic requirement on well-being. The second concerns the time at which one benefits. Well-being is a temporal phenomenon: given that one benefits from the satisfaction of one's desire that P, when does one benefit? Perhaps one benefits at the times at which one desires P, or the times at which P obtains, or both. I defend a view I call “concurrent awareness desire satisfactionism”: one benefits only at times at which both one desires P and P obtains (concurrence) and one benefits only if one is aware that one's desire is satisfied (awareness). I motivate this view by showing how it gives us solutions to many of the canonical problems facing desire satisfactionism. Then I put the two parts of the view together and explore some of its further implications. Ultimately, I conclude that well-being is an organic unity composed of a desiderative component, an epistemic component, and a worldly component, none of which are valuable on their own, but which are valuable when they are related in the right way. (shrink)

This paper provides an examination of some problems caused by the concentration of influence in the capital markets of developed countries. In particular, I argue that large asset managers exercise quasi-political power that is not democratically legitimate. In section two, I will examine the economic driver behind the size and power of the big asset managers: the passive investing revolution. I will discuss several respects in which this revolution has fundamentally changed capital markets, most notably by making a large share (...) of investors universal owners. In the third section, I argue for my central analytical conjecture: asset managers exercise quasi-political power. They use their influence to shape the rules of the game in public capital markets in order to implement social and environmental policies that have traditionally been the exclusive purview of states. “Asset manager capitalism” is a recent term coined to refer to the contemporary system of corporate governance that succeeded the Berle and Means corporation with its dispersed ownership; the argument of this section is that asset manager capitalism is also a new political-economic regime. In the fourth section I defend my central normative claim: asset manager capitalism is an untenable and illegitimate political-economic arrangement, for at least two reasons. First, the power of asset managers is not checked by any institutional constraints, and is not rendered legitimate by any democratic process. More fundamental than this procedural critique is an argument that the interests of asset managers could not be aligned with the public interest, given the fact that the distribution of capital is highly unequal. I conclude by discussing several proposals to reform asset manager capitalism. (shrink)

Natural resources, especially land, play an important role in many economic problems society faces today, including the climate crisis, housing shortages and severe inequality. Yet, land has been either entirely neglected or seriously misunderstood by contemporary theorists of distributive justice. I aim to correct that in this paper. In his theory of original acquisition, Locke did not carefully distinguish between the value of natural resources and the value that we add by laboring upon them. This oversight led him to the (...) mistaken conclusion that labor mixing gives the laborer an entitlement to both the improvement and the resource. I explain how Locke's false belief that the proviso was satisfied in his time was the fundamental cause of this error, and I develop a novel reading of the proviso using the law of rent. Instead, we should think, following Henry George, that the community is entitled to the economic value of natural resources, because the community created the value of resources, not the individual improver. I discuss an argument from George's "Progress and Poverty" that self-ownership is actually inconsistent with (rather than the ground for, as Locke thought) private appropriation of natural resources. This is because a necessary condition of our equal rights as self-owners is having free access to natural resources. If we do not have such access, George argues that natural resource owners can extract surplus value from their users (though I show why Marx’s belief that capital owners can also extract surplus value is mistaken). Nozick’s infamous argument that taxation is morally on a par with forced labor proves too much for his purposes, since George shows that payment of economic rents to natural resource owners is also morally on a par with forced labor. I then develop my own view of original acquisition, inspired by George. The self-ownership of improvers gives them an entitlement to improvements that they create. But the self-ownership of everyone else precludes an entitlement to natural resources value. Natural resource rents should not be enjoyed by those who improve the resource, but rather, by all community members in proportion to the share of demand for natural resources they are responsible for. Finally, I move from ideal theory to the real world, and discuss how George’s land value tax could be implemented in practice, and what its beneficial effects would be. We should be interested in this policy for many reasons, not the least of which is the fact that the two countries that have implemented the most extensive suite of Georgist policies—Norway and Singapore—are the two wealthiest countries in the world (excluding micro-states and tax havens). Since the land value tax is not inefficient like other taxes, it is unique among social and economic policies in that it has the potential to both greatly increase and more fairly distribute society’s wealth. (shrink)

ABSTRACT This paper argues for a version of sceptical invariantism about knowledge on which the acceptability of knowledge-attributing sentences varies with the context of assessment.

The experience machine poses the most important problem for hedonist theories of well-being. I argue that desire satisfactionism about well-being faces a similar problem: the desire machine. Upon entering this machine, your desires are altered through some minor neurosurgery. In particular, the machine causes you to desire everything that actually happens. The experience machine constructs a simulated world that matches your preexisting desires. The desire machine reconstructs your conative state to match the preexisting world. Desire satisfactionism recommends entering the desire (...) machine because you will then have more satisfied desires, but this seems wrong. -/- In this paper, I consider how desire satisfactionists might avoid the result that entering the desire machine increases one’s well-being. First, I further motivate why this problem arises. Second, I consider coherence-based norms of rational desire change. Finally, I argue that introducing a substantive account of fitting desire is the only plausible solution, but that this response requires abandoning pure subjectivism about well-being. (shrink)

Abstract: The topic for this paper is the phenomenon of apparent value incommensurability—two goods are apparently incommensurable when it appears that neither is better than the other nor are they equally good. I shall consider three theories of this phenomenon. Indeterminists like Broome (1997) hold that the phenomenon is due to vagueness: when two goods appear to be incommensurable, this owes to the fact that “better than” is vague. Incommensurabilists like Chang (2002) hold that some goods appear to be incommensurable (...) because they genuinely are, because it is determinately the case than neither is better than the other, nor are they equally good. I defend epistemicism, the view that the appearance of value incommensurability is due only to our ignorance of how goods compare. In reality, all goods are commensurable. I offer two arguments for epistemicism and against other views. First, epistemicists are committed to less unexplained axiological structure than are non-epistemicists, who must explain the extra structure that they posit. Second, only epistemicists have an adequate explanation of some facts about the scope of apparent incommensurability. Finally, I identify a class of putative counterexamples to the epistemicist’s analysis, and argue that these counterexamples do not succeed. If my arguments are sound, then, we have very good reason to think that for any two things that are good, either one is (determinately) better than the other, or they are (determinately) equally good. (shrink)

In this paper I offer an argument for the view that every body of evidence rationalizes exactly one doxastic attitude to each proposition. This is the uniqueness thesis. I do this by identifying a family of explanatory demands facing permissivists, those who deny the uniqueness thesis. Permissivists have traditionally motivated their view by attempting to identify counterexamples to the uniqueness thesis. But they have not developed a more general account of when permissive cases arise, and why. Permissivists cannot explain why (...) permissive cases are permissive, or how permissive they are. The paper contains three sections. First, I identify the explanatory demands facing the permissivist. Second, I survey a few existing proposals in the literature for how these explanatory demands might be answered, and argue that they fail. In the third section, I consider how permissivists might “soften” these explanatory demands, by holding that the permissible range of attitudes has vague borders, or that we do not know where its borders lie. I argue against both options. To do this, I present a general argument that there cannot be vague deontic facts, by appealing to a dominance principle and basic principles of deontic logic. If there are no deontic facts, then the permissible range of attitudes could not have vague borders, so the explanatory demands facing the permissivist remain unanswered. (shrink)

A critical survey of Quine's arguments against the analytic/synthetic distinction.

I reply to seven objections to anthropomorphic theism: (1) That anthropomorphic theism is idolatrous. In reply I rely on the concept/conception distinction. (2) That faith requires certainty. In reply I argue that full belief may be based on probable inference. (3) That the truly infinite is incomprehensible. In reply I distinguish two senses of knowing what you mean. (4) "You Kant say that!" In reply I distinguish shallow from deep Kantianism. (5) "Shall Old Aquinas be forgot?" In reply I discuss (...) the simplicity of God. (6) What those garrulous mystics say about the ineffable. In reply I argue that mystics should be anthropomorphites. (7) Antitheodicy. In reply I distinguish the community of all agents from the community of finite frail agents. (shrink)

When I was eleven, my form teacher, Mr Howard, showed some of my class how to punch. We were waiting for the rest of the class to finish changing after gym, and he took a stance that I would now call shizentai yoi and snapped his right fist forward into a head-level straight punch, pulling his left back to his side at the same time. Then he punched with his left, pulling back on his right. We all lined up in (...) our ties and sensible shoes (this was England) and copied him—left, right, left, right—and afterwards he told us that if we practised in the air with sufficient devotion for three years, then we would be able to use our punches to kill a bull with one blow. I worshipped Mr Howard (though I would sooner have died than told him that) and so, as a skinny, eleven-year-old girl, I came to believe that if I practised, I would be able to kill a bull with one blow by the time I was fourteen. This essay is about epistemic viciousness in the martial arts, and this story is illustrates just that. Though the word ‘viciousness’ normally suggests deliberate cruelty and violence, I will be using it here with the more old-fashioned meaning, possessing of vices. Vices (such as avarice, alcoholism and nail-biting) are common, and most of us struggle with a few, but ‘epistemic’ means ‘having to do with knowledge and the justification of belief’ and so epistemic viciousness is the possession of vices that make one bad at acquiring true beliefs, or give one a tendency to form false ones. My eleven-year-old self possessed the epistemic vice of gullibility and hence showed a streak of epistemic viciousness, which led to the formation of a false belief. Other kinds of epistemic vice can lead to us failing to form true beliefs when we ought to. Consider the internet-surfing karate-sensei who stumbles upon an article claiming that chocolate milk is better than water or sports drinks for promoting recovery after strenuous exercise, and describing an experiment using stationary bikes performed at the University of Indiana, purporting to support this claim.. (shrink)

Logical pluralism is the view that there is more than one logic. Logical normativism is the view that logic is normative. These positions have often been assumed to go hand-in-hand, but we show that one can be a logical pluralist without being a logical normativist. We begin by arguing directly against logical normativism. Then we reformulate one popular version of pluralism—due to Beall and Restall—to avoid a normativist commitment. We give three non-normativist pluralist views, the most promising of which depends (...) not on logic’s normativity but on epistemic goals. (shrink)

This paper reviews some of the literature on the philosophy of quantum mechanics. The publications involved tend to follow similar patterns of first identifying the mysteries, puzzles or paradoxes of the quantum world, and then discussing the existing interpretations of these matters, before the authors produce their own interpretations, or side with one of the existing views. The paper will show that all interpretations of quantum mechanics involve elements of apparent weirdness. They suggest that the quantum world, and possibly our (...) macro world, exists or behaves in a way quite contrary to the way we normally imagine they should. The paper will also show how many of the writers on quantum mechanics misunderstand idealism in the macro world as proposed by philosophers such as George Berkeley, David Hume, Immanuel Kant and John Stuart Mill and misunderstand the concept of the observer dependent universe. The paper concludes by examining the similarities between the idealist view of the macro world and the Copenhagen Interpretation of the quantum world and suggests that as the Copenhagen Interpretation provides a view of the quantum world that is consistent with the macro world then the Copenhagen Interpretation should be the preferred view of the quantum world. (shrink)

The ultimate cause of much historical, social and cultural change is the gradual accumulation of human knowledge of the environment. Human beings use the materials in their environment to meet their needs and increased human knowledge of the environment enables human needs to be met in a more efficient manner. The human environment has a particular structure so that human knowledge of the environment is acquired in a particular order. The simplest knowledge is acquired first and more complex knowledge is (...) acquired later. The order of discovery determines the course of human social and cultural history as knowledge of new and more efficient means of meeting human needs, results in new technology, which results in the development of new social and ideological systems. This means human social and cultural history has to follow a particular course, a course that is determined by the structure of the human environment. Given that a certain level of knowledge will result in a particular type of society, it is possible to ascertain the types of societies that were inevitable in human history. The course of history is not random and can be rationally and scientifically understood. (shrink)

This paper investigates the nature of reality by looking at the philosophical debate between realism and idealism and at scientific investigations in quantum physics and at recent studies of animal senses, neurology and cognitive psychology. The concept of perceptual relativity is examined and this involves looking at sense perception in other animals and various examples of perceptual relativity in science. It will be concluded that the universe is observer dependent and that there is no reality independent of the observer, which (...) is knowable to the observer. The paper concludes by an investigation of what an observer dependent universe would be like and that recognition of an observer dependent world would lead to a more open minded and tolerant world. (shrink)

The Bohr Einstein debate on the meaning of quantum physics involved Einstein inventing a series of thought experiments to challenge the Copenhagen Interpretation of quantum physics. Einstein disliked many aspects of the Copenhagen Interpretation especially its idea of an observer dependent universe. Bohr was able to answer all Einstein’s objections to the Copenhagen Interpretation and so is usually considered as winning the debate. However the debate has continued into the present time as many scientists have been unable to accept the (...) idea of an observer dependent universe and many alternatives to the Copenhagen Interpretation have been proposed. However none of the alternatives has won general acceptance because all have problems that make them implausible or impossible. (shrink)

This paper addresses the question of whether the fetus is human and its effect on the abortion debate. It investigates the concept of “human” and asks whether the concept of human has an essence or is best understood by the idea of family resemblance. It asks whether DNA is the essence of humanity and concludes that it is not and that humanity is best understood using family resemblance involving a range of attributes common to humans. It concludes the fetus does (...) not have the range of attributes that would make it human. (shrink)

Quantum physicists have made many attempts to solve the quantum measurement problem, but no solution seems to have received widespread acceptance. The time has come for a new approach. In Sense Perception and Reality: A Theory of Perceptual Relativity, Quantum Mechanics and the Observer Dependent Universe I suggest the quantum measurement problem is caused by a failure to understand that each species has its own sensory world and that when we say the wave function collapses and brings a particle into (...) existence we mean the particle is brought into existence in the human sensory world by the combined operation of the human sensory apparatus, particle detectors and the experimental set up. This is similar to the Copenhagen Interpretation suggested by Niels Bohr and others, but the understanding that the collapse of the wave function brings a particle into existence in the human sensory world removes the need for a dividing line between the quantum world and the macro world. The same rules can apply to both worlds and the ideas stated in this paper considerably strengthen the Copenhagen Interpretation of quantum mechanics. (shrink)

The ultimate cause of much historical, social and cultural change is the gradual accumulation of human knowledge of the environment. Human beings use the materials in their environment to meet their needs and increased human knowledge of the environment enables human needs to be met in a more efficient manner. The human environment includes the human being itself and the human ability to communicate by means of language and to make symbolic representations of the sounds produced by language, allowed the (...) development of writing. Writing developed over time in a necessary and inevitable manner from logographic, to syllabic, to alphabetical systems. This development from simpler word based writing to more complex syllable based systems and then even more complex sound based writing systems was a logical progression from, simple less useful systems, to more complex, but more useful systems. This is an example of how the simplest knowledge is acquired first and more complex knowledge is acquired later. The order of discovery determines the course of human social and cultural history as knowledge of new and more efficient means of meeting human needs, results in new technology, which results in the development of new social and ideological systems. This means human social and cultural history, has to follow a particular course, a course that is determined by the structure of the human environment. (shrink)

Karl Marx, Emile Durkheim, Leslie White, Allen Johnson and Timothy Earle, and Stephen Sanderson all produced some of the more interesting theories of history, social change and cultural evolution but their theories have a common deficiency. None of them provide an ultimate explanation for social, cultural and historical change. This failure was rectified by J. S. Mill who suggested increasing human knowledge was the ultimate cause of social, cultural and historical change. However even Mill did not ask what caused the (...) increasing human knowledge and why the knowledge had to be acquired in a particular order and how this could affect human history. (shrink)

This paper suggests ever increasing human knowledge of the world around us is the driving force for much social and cultural evolution. It examines the order of discovery of our knowledge of the world around us and notes this knowledge comes to us in a particular and necessary order from the easiest to discover to the more difficult to discover. The necessary order of the discoveries means they can be rationally analysed and understood and this enables the study of social (...) and cultural evolution to be put on a scientific basis. It also enables us to make scientifically based predictions about the future for the human species. (shrink)

This paper is written to question the widespread belief among anthropologists that prehistoric hunter gatherers knew about agriculture long before agriculture began to be practised. The paper suggests gradually accumulating human knowledge led to the development of agriculture rather than population pressure, favourable mutations or convenient climate, all of which would have occurred at various times long before agriculture was developed, without leading to the discovery of agriculture.

This paper investigates the nature of reality by looking at the philosophical debate between realism and idealism and at scientific investigations in quantum physics and at recent studies of animal senses, neurology and cognitive psychology. The concept of perceptual relativity is examined and this involves looking at sense perception in other animals and various examples of perceptual relativity in science. It will be concluded that the universe is observer dependent and that there is no reality independent of the observer, which (...) is knowable to the observer. The paper concludes by an investigation of what an observer dependent universe would be like and that recognition of an observer dependent world would lead to a more open minded and tolerant world. (shrink)

This paper was written to study the order of medical advances throughout history. It investigates changing human beliefs concerning the causes of diseases, how modern surgery developed and improved methods of diagnosis and the use of medical statistics. Human beliefs about the causes of disease followed a logical progression from supernatural causes, such as the wrath of the Gods, to natural causes, involving imbalances within the human body. The invention of the microscope led to the discovery of microorganisms which were (...) eventually identified as the cause of infectious diseases. Identification of the particular microorganism causing a disease led to immunization against the disease. Modern surgery only developed after the ending of the taboo against human dissection and the discovery of modern anesthesia and the discovery of the need for anti-septic practices. Modern diagnostic practices began with the discovery of x-rays and the invention of medical scanners. Improved mathematics, especially in probability theory, led to statistical studies which led to a much greater ability, to identify the causes of disease, and to evaluate the effectiveness of treatments. These discoveries all occurred in a necessary and inevitable order with the easiest discoveries being made first and the harder discoveries being made later. The order of discovery determined the course of the history of medicine and is an example of how social and cultural history has to follow a particular course determined by the structure of the world around us. (shrink)

It is proposed that the ultimate cause of much historical, social and cultural change is the gradual accumulation of human knowledge of the environment. Human beings use the materials in their environment to meet their needs and increased human knowledge of the environment enables human needs to be met in a more efficient manner. Human needs direct human research into particular areas and this provides a direction for historical, social and cultural development. The human environment has a particular structure and (...) human beings have a particular place in it so that human knowledge of the environment is acquired in a particular order. The simplest knowledge, or the knowledge closest to us, is acquired first and more complex knowledge, or knowledge further from us is acquired later. The order of discovery determines the course of human social and cultural history as knowledge of new and more efficient means of meeting human needs, results in new technology, which results in the development of new social and ideological systems. This means human history, or a major part of human history, had to follow a particular course, a course that is determined by the structure of the human environment. An examination of the structure of the human environment will reveal the particular order in which our discoveries had to be made. Given that a certain level of knowledge will result in a particular type of society, it is possible to ascertain the types of societies that were inevitable in human history. While it is not possible to make predictions about the future course of human history, it is possible to explain and understand why human history has followed a particular path and why it had to follow that particular path. (shrink)

Sense perception and Reality examines the remarkable similarities between philosophical idealism and the Copenhagen Interpretation of quantum physics. The book looks at perceptual relativity involving animal senses, neurology and cognitive psychology. It concludes the universe is observer dependent and varies with the sensory apparatus used to observe it. The Copenhagen Interpretation is examined and perceptual relativity would appear to apply in the quantum world. The Copenhagen Interpretation suggests the universe is observer dependent, the same conclusion as is found in philosophical (...) idealism in the macro world. The book concludes by examining the consequences of an observer dependent universe and by showing such a universe is quite consistent with a modern objective science. (shrink)

This book chapter applies ‘The Decline and Fall of the Spectacle-Commodity Economy’ – the Situationist account of the Watts Rebellion (Los Angeles, 1965) – to the August riots (England, 2011) and the global Occupy movement that followed. It draws two conclusions: that both May ‘68 and Occupy were formed by the political violence that preceded them; and that, although the Situationist essay makes problematic claims about race, its assessment of the Spectacle-Commodity Economy remains valuable. In fact, if combined with intersectional (...) theory, it can provide a useful counterbalance to identity politics that can prevent what Alain Badiou calls an ‘immediate riot’ from becoming a ‘historical riot’ by fragmenting mass social movements and undermining unity. (shrink)

I should like to offer my greatest thanks to Paul Griffiths for providing the opportunity for this exchange, and to commentators Gillian Brown, Steven Fuller, Stefan Linquist, and Erika Milam for their generous and thought-provoking comments. I shall do my best in this space to respond to some of their concerns.

Functional diversity holds the promise of understanding ecosystems in ways unattainable by taxonomic diversity studies. Underlying this promise is the intuition that investigating the diversity of what organisms actually do—i.e. their functional traits—within ecosystems will generate more reliable insights into the ways these ecosystems behave, compared to considering only species diversity. But this promise also rests on several conceptual and methodological—i.e. epistemic—assumptions that cut across various theories and domains of ecology. These assumptions should be clearly addressed, notably for the sake (...) of an effective comparison and integration across domains, and for assessing whether or not to use functional diversity approaches for developing ecological management strategies. The objective of this contribution is to identify and critically analyze the most salient of these assumptions. To this aim, we provide an “epistemic roadmap” that pinpoints these assumptions along a set of historical, conceptual, empirical, theoretical, and normative dimensions. (shrink)

In this brief, we argue that there is a diversity of ways in which humans (Homo sapiens) are ‘persons’ and there are no non-arbitrary conceptions of ‘personhood’ that can include all humans and exclude all nonhuman animals. To do so we describe and assess the four most prominent conceptions of ‘personhood’ that can be found in the rulings concerning Kiko and Tommy, with particular focus on the most recent decision, Nonhuman Rights Project, Inc v Lavery.

Corruption is a ubiquitous problem. As Gillian Brock notes early on, it exists to one degree or another in all societies, no matter their stage of development, and is regularly identified by the public as one of the top problems in the world (2–3). Despite its importance and frequency, it hasn’t been a central topic for philoso- phers working on normative moral and political theory. This isn’t to say that it has been ignored, but it has mostly been seen (...) as a specialty topic in areas such as business ethics, criminal law theory focusing on white-collar crime, or certain sub- areas in democratic theory. However, as Brock points out, corruption has particular importance for questions of global justice, given that “corruption plays an enor- mous role in sustaining global injustice and hinders efforts aimed at remedying global deprivations” (17). This comes not only from the sort of large-scale corrup- tion by government officials that starves developing countries of funds needed to provide necessary services but also from more day-to-day corruption in the provi- sion of water, leaving many people without access to clean drinking water; in con- struction, where people must make do with substandard and unsafe buildings; in the provision of education and medical services; and so on. Despite the massive size of the global justice literature, Brock’s book is one of the first—perhaps the first— to focus specifically on corruption in relation to global justice. It would be an im- portant work for this reason alone, but it also has many other virtues which should make it the touchstone of the topic going forward. (shrink)

Critical review of Gillian Russell's "Truth in Virtue of Meaning".

I was quite excited when I first read Restall and Russell’s (2010) paper. For two reasons. First, because the paper provides rigorous formulations and formal proofs of implication barrier the- ses, namely “theses [which] deny that one can derive sentences of one type from sentences of another”. Second (and primarily), because the paper proves a general theorem, the Barrier Con- struction Theorem, which unifies implication barrier theses concerning four topics: generality, necessity, time, and normativity. After thinking about the paper, I (...) am satisfied with its treatment of the first three topics, namely generality, necessity, and time. But I am not satisfied with its treatment of normativity, so my comments are exclusively on that topic. (shrink)

Review of Peter Forrest's "Development Theism".

A review article of Gillian Brock's Global Justice: A Cosmopolitan Account. Reviewed by Dara Salam. Public Reason, Vol.3, No.1, June 2011, pp. 114-117.

The Forrest-Armstrong argument, as reconfigured by David Lewis, is a reductio against an unrestricted principle of recombination. There is a gap in the argument which Lewis thought could be bridged by an appeal to recombination. After presenting the argument, I show that no plausible principle of recombination can bridge the gap. But other plausible principles of plenitude can bridge the gap, both principles of plenitude for world contents and principles of plenitude for world structures. I conclude that the Forrest-Armstrong argument, (...) when fortified in one of these ways, demands that unrestricted recombination be rejected. The appropriate restriction comes from a consideration of what world structures are possible. I argue that, although there are too many worlds to form a set, for any world, the individuals at that world do form a set. To defend it I invoke a principle of Limitation of Size together with an iterative conception of structure. (shrink)

I criticise a paper by Peter Forrest in which he argues that a principle of unrestricted countable fusion has paradoxical consequences. I argue that the paradoxical consequences that he exhibits may be due to his Whiteheadean assumptions about the nature of spacetime rather than to the principle of unrestricted countable fusion.

How to respond to unauthorized migration and migrants is one of the most difficult questions in relation to migration theory and policy. In this commentary on Gillian Brock’s discussion of “irregular” migration, I do not attempt to give a fully satisfactory account of how to respond to unauthorized migration, but rather, using Brock’s discussion, try to highlight what I see as the most important difficulties in crafting an acceptable account, and raise some problems with the approach that Brock takes. (...) In thinking about unauthorized migration, both while trying to craft positive policies and while critiquing existing practices, we need to ask if we are most interested in a general account of how to respond to unauthorized migration, one that would apply to the large majority of cases and provide us a default approach, or if we are better served by taking a piecemeal approach, looking at why certain people or certain groups should be exempt from removal, even if they would otherwise be liable to it. In this paper, I will focus primarily on this distinction, and argue that it is at least important to provide an account of the "generic unauthorized". (shrink)

Gillian Russell has recently proposed counterexamples to such elementary argument forms as Conjunction Introduction and Identity. These purported counterexamples involve expressions that are sensitive to linguistic context—for example, a sentence which is true when it appears alone but false when embedded in a larger sentence. If they are genuine counterexamples, it looks as though logical nihilism—the view that there are no valid argument forms—might be true. In this paper, I argue that the purported counterexamples are not genuine, on the (...) grounds that they equivocate. Having defused the threat of logical nihilism, I argue that the kind of linguistic context sensitivity at work in Russell’s purported counterexamples, if taken seriously, far from leading to logical nihilism, reveals new, previously undreamt-of valid forms. By way of proof of concept I present a simple logic, Solo-Only Propositional Logic, designed to capture some of them. Along the way, some interesting subtleties about the fallacy of equivocation are revealed. (shrink)

Gillian Brock's "Global Justice: A Cosmopolitan Account" and Darrel Moellendorf's "Global Inequality Matters" present carefully crafted accounts of the obligations we have to non-compatriots and offer practical proposals for how we might get closer to meeting these obligations.

This article brings Gillian Brock and Alex Sager's recently published books into conversation with my book, Immigration and Democracy. It begins with a summary of the main normative arguments of my book to set the stage for critical engagement with Brock and Sager's books. While I agree with Brock's Justice for People on the Move that state power must be justified to both insiders and outsiders, I think she gives too little weight to the value of collective self-determination. I (...) distinguish between justice and collective self-determination and argue that each is an important component of legitimacy. Sager's Against Borders focuses on immigration enforcement and contends that violence is inherent in border controls. Every legal system is backed by the threat of the use of force; the question is whether the use of force by state agents is justified. In contrast to Sager, I argue that the proper response to the injustices of current immigration enforcement is reform, not abolition, of the immigration system. (shrink)

In the course of presenting a compelling and comprehensive framework for immigration justice, Brock addresses discriminatory immigration policies, focusing on recent attempts by the Trump administration to exclude Muslims from the U.S.. This essay critically assesses Brock’s treatment of the issue, and in particular the question of what made the Muslim ban and similar policies unjust. Through examining these issues, further questions regarding the immigration justice framework on offer arise.