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Maybe there is something rather than nothing because the nothingness force acted on itself, and when the nothing nothings itself it produces something. Robert Nozick suggested this as a candidate explanation of the fact that there is something rather than nothing. If he is right that it is a candidate explanation, we should pay attention: there are not many candidates out there. But his "explanation" looks, instead, like a paradigm case of philosophical nonsense. In this paper I describe a "metaphysical dynamics" that makes sense out of Nozick's apparent nonsense.

It is common to talk about options, where an option is a course of action an agent can take. A course of action, in turn, is that which can be the object of intention. It has not often been noticed in the literature, though, that there are two ways to understand what makes something an option: first, an option just is some course of action physically open (or, to be maximally liberal, logically open) to an agent; second, an option just is some course of action that the agent either in fact deliberates about taking or is psychologically capable of deliberating about taking. At any given time, there are far more courses of action open to an agent than the agent can or does deliberate about taking. What determines which courses of action an agent deliberates about as an option, and why do so many other courses of action remain out of deliberative view? I argue that while values, ends, the demands of both means-end coherence and consistency of beliefs contribute to the determination of which courses of action an agent sees as options, they cannot be the whole story. I argue that another mechanism, which I call the practical imagination, is primarily responsible for which courses of action an agent sees as options. Drawing upon both recent work in developmental and social psychology and a strain of philosophical argument that has attempted to show how human beings have a practical understanding of themselves that is mediated by what we can call a narrative identity, I argue that the norms governing the construction of a narrative identity are among the most important, albeit not the only, norms governing the practical imagination and that, just as we should look to the norms of practical reason to explain and critically reflect on practical deliberation, we should look to the norms of practical imagination to explain and critically reflect on the process by which an agent comes to see some course of action as an option.

Many have claimed that unspecific evidence sometimes demands unsharp, indeterminate, imprecise, vague, or interval-valued probabilities. Against this, a variant of the diachronic Dutch Book argument shows that perfectly rational agents always have perfectly sharp probabilities.

This paper presents an argument for the Principle of Sufficient Reason, the PSR, the principle according to which each thing that exists has an explanation. I begin with several widespread and extremely plausible arguments that I call explicability arguments in which a certain situation is rejected precisely because it would be arbitrary. Building on these plausible cases, I construct a series of explicability arguments that culminates in an explicability argument concerning existence itself. This argument amounts to the claim that the PSR is true. The plausibility of the initial cases in the series provides the basis of an argument for the PSR, an argument that can be rebutted only by drawing a line between the plausible early cases in the series and the apparently unacceptable later cases. I argue that no principled reason for drawing this line has been found and that one cannot draw an unprincipled or arbitrary line without begging the question. The paper concludes that, therefore, this defense of the PSR remains unrebutted and that we have a powerful, new reason to embrace the PSR.

Moral philosophers of late have been examining the implications of experimental social psychology for ethics. The focus of attention has been on situationism—the thesis that we routinely underestimate the extent to which minor situational variables influence morally significant behavior. Situationism has been seen as a threat to prevailing lay and philosophical theories of character, personhood, and agency. In this paper, I outline the situationist literature and critique one of its upshots: the admonition to carefully select one’s situational contexts. Besides being limited in application, this strategy accentuates an untenable person/situation dichotomy. The deeper lesson of situationism lies in highlighting the interconnectedness of all social behavior—how we are inextricably involved in the actions of others, and how minor tweaks in our own behavior can lead to major payoffs in our moral lives. Situationism is better seen as an opportunity for moral progress than a threat to individual autonomy.

According to the standard philosophical definition of lying, you lie if you say something that you believe to be false with the intent to deceive. Recently, several philosophers have argued that an intention to deceive is not a necessary condition on lying. But even if they are correct, it might still be suggested that the standard philosophical definition captures the type of lie that philosophers are primarily interested in (viz., lies that are intended to deceive). In this paper, I argue that the standard philosophical definition is not adequate as a definition of deceptive lying either. I then suggest two plausible alternative definitions of this concept.