In this paper, I defend fictional creationism, the view that fictional objects are abstract artifacts, from the objection that the apparent truth of fictional negative existentials, such as “Sherlock Holmes does not exist,” poses a serious problem for creationism. I develop a sophisticated version of the pragmatic approach by focusing on the inconsistent referential intentions of ordinary speakers: the upshot would be that creationism is no worse—perhaps even in a better position—than anti-realism, even if we restrict our linguistic data to fictional negative existentals.

I provide a unified account of hope and fear as propositional attitudes. This “mirror account” is based on the historical idea that the only difference between hope and fear is the conative attitude involved, positive for hope and negative for fear. My analysis builds on a qualified version of the standard account of hope. The epistemic condition is formulated in terms of live possibility and the conative according to a non-reductive view on desire and aversion. The account demonstrates the theoretical fruitfulness of accepting Jack M. C. Kwong’s distinction between hope and fear as propositional attitudes and experiential states.

Deep neural networks are said to be opaque, impeding the development of safe and trustworthy artificial intelligence, but where this opacity stems from is less clear. What are the sufficient properties for neural network opacity? Here, I discuss five common properties of deep neural networks and two different kinds of opacity. Which of these properties are sufficient for what type of opacity? I show how each kind of opacity stems from only one of these five properties, and then discuss to what extent the two kinds of opacity can be mitigated by explainability methods.

Within collective epistemology, there is a class of theories that understand the epistemic status of collective attitude ascriptions, such as “the college union knows that the industrial action is going to plan” as saying that a sufficient subset of group member attitudes has the relevant epistemic status. I will demonstrate that these summativist approaches to collective epistemology are incompatible with epistemic permissivism, the doctrine that a single body of evidence may rationalize multiple doxastic attitudes. In particular, we can use epistemic permissivism to generate so-called divergence cases, which demonstrate situations in which rationality requires group-level and member-level attitudes to diverge.

It is widely accepted that parents have a fundamental moral obligation to consider and treat their children as each other’s equals. Yet the question of what grounds the equality of status among children in the eyes of their parents has so far been largely neglected in the literature on the philosophy of childhood and the ethics of parenthood. This paper fills this gap by developing a novel theory of the basis of filial equality: it argues that parents ought to consider and treat their children as equals by virtue of loving them. Parental love is the basis of filial equality.

According to moderatism, perceptual justification requires that one independently takes for granted propositional hinges. This view faces the truth problem: to offer an account of truth for hinges that is not threatened by skepticism. Annalisa Coliva has tried to solve the truth problem by developing a new form of alethic pluralism. I argue that the resulting view cannot offer a coherent characterization of “skeptical switch scenarios” while providing an effective anti-skeptical strategy. In a more positive vein, I defend an approach that combines a correspondence conception of truth with epistemological disjunctivism.