I argue that thinking of existence questions as deep questions to be resolved by a distinctively philosophical discipline of ontology is misguided. I begin by examining how to understand the truth-conditions of existence claims, by way of understanding the rules of use for ‘exists’ and for general noun terms. This yields a straightforward method for resolving existence questions by a combination of conceptual analysis and empirical enquiry. It also provides a blueprint for arguing against most common proposals for uniform substantive ‘criteria of existence’, whether they involve mind-independence, possession of causal powers, observability, etc., and thus for showing that many arguments for denying entities (numbers, ordinary objects, fictional characters, propositions…) on grounds of their failure to meet one or more of these proposed existence criteria are mistaken.

I argue that the ontological status of fictional characters is determined by the beliefs and practices of those who competently deal with works of literature, and draw out three important consequences of this. First, heavily revisionary theories cannot be considered as ‘discoveries’ about the ‘true nature’ of fictional characters; any acceptable realist theory of fiction must preserve all or most of the common conception of fictional characters. Second, once we note that the existence conditions for fictional characters (established by those beliefs and practices) are extremely minimal, it makes little sense to deny the existence of fictional characters, leaving anti-realist views of fiction unmotivated. Finally, the role of ordinary beliefs and practices in determining facts about the ontology of fictional characters explains why non-revisionary theories of fiction are bound to yield no determinate or precise answer to certain questions about fictional characters, demonstrating the limits of a theory of fiction.

The challenge of handling fictional discourse is to find the best way to resolve the apparent inconsistencies in our ways of speaking about fiction. A promising approach is to take at least some such discourse to involve pretense, but does all fictional discourse involve pretense? I will argue that a better, less revisionary, solution is to take internal and fictionalizing discourse to involve pretense, while allowing that in external critical discourse, fictional names are used seriously to refer to fictional characters. I then address two objections to such realist theories of fiction: One, that they can’t adequately account for the truth of singular nonexistence claims involving fictional names, and two, that accepting that there are fictional characters to which we refer is implausible or ontologically profligate.

In _The Significance of Consciousness_ , Charles Siewert proposes a novel understanding of consciousness by arguing against higher-order views of consciousness and rejecting the traditional taxonomy of the mental into qualitative and intentional aspects. I discuss two puzzles that arise from these changes: first, how to account for first-person knowledge of our conscious states while denying that these are typically accompanied by higher-order states directed towards them; second, how to understand his claim that phenomenal features are intentional features without either risking consciousness neglect or retreating to a more traditional understanding of the relation between qualitative and intentional character.

Nonreductive physicalism provides an appealing solution to the nature of mental properties. But its success as a theory of mental properties has been called into doubt by claims that it cannot adequately handle the problems of mental causation, as it leads either to epiphenomenalism or to thoroughgoing overdetermination. I argue that these apparent problems for the nonreductivist are based in fundamental confusion about causation and explanation. I distinguish two different types of explanation and two different relations to which they appeal: causation and determination. I argue that these types of explanation do not compete with one another, nor do these relations jointly result in overdetermination. In closing I develop a nonreductivist solution to mental causation which avoids both the hazards of epiphenomenalism and of overdetermination and so demonstrates a way to save nonreductive physicalism from the problems of mental causation.