The British Journal for the Philosophy of Science, Ahead of Print.

This paper defends virtual veridicalism, according to which many perceptual experiences in virtual reality are veridical. My argument centers on perceptual variation, the phenomenon in which perceptual experience appears all the same while being reliably generated by different properties under different circumstances. It consists of three stages. The first stage argues that perceptual variation can

The British Journal for the Philosophy of Science, Ahead of Print.

We argue for three main claims. First, the sentence ‘A and B ought to φ and ψ’ can express what we a call a joint-ought claim: the claim that the plurality A and B ought to φ and ψ respectively. Second, the truth-value of this joint-ought claim can differ from the truth-value of the pair of claims ‘A ought to φ’ and ‘B ought to ψ.’ This is because what A and B jointly ought to do can diverge from what

New AI technologies have the potential to cause unintended harms in diverse domains including warfare, judicial sentencing, medicine and governance. One strategy for realising the benefits of AI whilst avoiding its potential dangers is to ensure that new AIs are properly ‘aligned’ with some form of ‘alignment target.’ One danger of this strategy is that–dependent on the alignment target chosen–our

In practical rationality, if two reasons for alternative actions are tied, then either action is *permissible*. In epistemic rationality, we get the Epistemic Ties Datum: if the reasons for belief and disbelief are tied, then withholding judgment is *required*. I argue that this difference is explained by a difference in default biases. Practical rationality is biased toward permissibility. An action

The British Journal for the Philosophy of Science, Ahead of Print.

Conceptual engineering is the process of assessing and improving our conceptual repertoire. Some authors have claimed that introducing or revising concepts through conceptual engineering can go as far as expanding the realm of thinkable thoughts and thus enable us to form beliefs, hypotheses, wishes, or desires that we are currently unable to form. If true, this would allow conceptual engineers to

Ontic structuralists claim that there are no individual objects, and that reality should instead be thought of as a “web of relations”. It is difficult to make this metaphysical picture precise, however, since languages usually characterize the world by describing the objects that exist in it. This paper proposes a solution to the problem; I argue that when discourse is reformulated in the language

Should you be willing to forego any sure good for a tiny probability of a vastly greater good? Fanatics say you should, anti‐fanatics say you should not. Anti‐fanaticism has great intuitive appeal. But, I argue, these intuitions are untenable, because satisfying them in their full generality is incompatible with three very plausible principles: acyclicity, a minimal dominance principle, and the principle

Until recently, many theorists defined domination such that it requires unequal power, and most others held that even if domination were not defined as requiring unequal power, a requirement of unequal power would nevertheless follow from the definition of what domination is. On these views, unless there is an imbalance of power between the two parties, there can be no relation of domination. However

My aim in this paper is to introduce and motivate a general normative framework, which I call feasibilism, and to sketch a view of the relationship between the prescriptive and the hypological in the epistemic domain by drawing on the theoretical resources provided by this framework. I then generalise the lesson to the moral domain. I begin by motivating feasibilism. A wide range of norms appear to

This commentary on Justin D’Arms and Daniel Jacobson’s Rational Sentimentalism explores two key issues: what exactly is the position D’Arms and Jacobson call ‘rational sentimentalism’, and why exactly do they restrict their theorizing to the normative categories they dub ‘the sentimentalist values’? Along the way, a challenge is developed for D’Arms and Jacobson’s claim that there is no “response-independent”

Often, a health resource distribution (or, more generally, a health policy) ranks higher than another on one value, say, on promoting total population health; and lower on another, say, on promoting that of the worst off. Then, some opine, there need not be a rational determination as to which of the multiple distributions that partially fulfill both one ought to choose. Sometimes, reason determines

What is the status of metaphorical meaning? Is it an input to semantic composition or is it derived post-semantically? This question has divided theorists for decades. Griceans argue that metaphorical meaning/content is a kind of implicature that is generated through post-semantic processing. Others, such as the contextualists, argue that metaphorical meaning is an input to semantic composition and

A new argument is offered which proceeds through epistemic possibility (for all S knows, p), cutting a trail from modality to Millianism, the controversial thesis that the semantic content of a proper name is simply its bearer. New definitions are provided for various epistemic modal notions. A surprising theorem about epistemic necessity is proved. A proposition p can be epistemically necessary for

Lucid dreams are a distinctive and intriguing phenomenon where subjects apparently possess, inter alia, conscious knowledge that they are dreaming while they are dreaming. I here develop and defend a new model of lucid dreaming, what I call the ‘Dyadic Model’, according to which lucid dreams involve the tokening of both dreaming and non-dreaming states. The model is developed to successfully defend

Several recent results bring into focus the superintuitionistic nature of most notions of proof-theoretic validity, but little work has been done evaluating the consequences of these results. Proof...

The dominant practice of AI alignment assumes (1) that preferences are an adequate representation of human values, (2) that human rationality can be understood in terms of maximizing the satisfaction of preferences, and (3) that AI systems should be aligned with the preferences of one or more humans to ensure that they behave safely and in accordance with our values. Whether implicitly followed or

Censorship involves, inter alia, adopting a certain type of epistemic policy. While much has been written on the harms and benefits of free expression and the associated rights thereof, the epistemic preconditions of justified censorship are relatively underexplored. In this paper, I argue that examining intrapersonal norms of how we ought to treat evidence that might come to us over time can shed

This paper develops and defends novel accounts of accurate and reasonable doubt. We take a cue from Sosa's telic epistemic normative picture to argue that one’s degree of doubt that p is accurate just in case it matches the level of veritic risk involved in believing that p. In turn, on this account, reasonable doubt is doubt that is generated by a properly functioning cognitive capacity with the function

There are two leading theories about the ontology of dreams. One holds that dreams involve hallucinations and beliefs. The other holds that dreaming involves sensory and propositional imagining. I highlight two features of dreams which are more easily explained by the imagination theory. One is that certain things seem to be true in our dreams, even though they are not represented sensorily; this is

There are infinitely many ways the world might be, and there may well be infinitely many people in it. These facts raise moral paradoxes. We explore a conflict between two highly attractive principles: a Pareto principle that says that what is better for everyone is better overall, and a statewise dominance principle that says that what is sure to turn out better is better on balance. We refine and

It is widely held that deontological moral theories are agent-relative because they include prohibitions on actions such as killing, or breaking promises, which cannot be understood as giving the same goal to different agents. They are thus thought to be inconsistent with consequentialism, in its traditional, agent-neutral form. However, the standard argument for this claim is incomplete, a problem

According to internalism about prudential value, the token states of affairs that are basically good for you must be suitably connected, under the proper conditions, to your positive attitudes. It is commonly thought that any theory of welfare that implies internalism is guaranteed to respect the alienation constraint, the doctrine that you cannot be alienated from that which is basically good for

Romantic partnerships are typically among the most important goods in our lives. But love sometime ends, and so too do relationships. Divorcing partners are particularly vulnerable to being wronged and harmed. The aim of this paper is to develop an ethics of divorce, by establishing that divorce is a condition for the possibility of the distinct value of romantic partnerships. Different sets of rights

Castañeda, Perry and Lewis argued that, among singular thoughts in general, thoughts about oneself ‘as oneself’—first-personal thoughts, which Lewis aptly called de se—have a distinctive character that traditional views of contents cannot characterize. Drawing on Anscombe, Annalisa Coliva has argued that a feature she calls Real Guarantee marks apart de se thoughts—as opposed to others including Immunity

What norm governs how an agent should change their beliefs when they encounter a completely new possibility? Orthodox Bayesianism has no answer, as it takes all learning to involve updating prior b...

Andrić and Herlitz (2022) object to Timeslice Prioritarianism on the basis that it violates two purportedly uncontroversial properties: prudence and Weak Pareto. We will claim that their objection ...

An influential version of the Consequence argument, the most famous argument for the incompatibility of free will and determinism, goes as follows: For an agent to be able to do otherwise, there has to be a possible world with the same laws and the same past as her actual world in which she does otherwise. However, if the actual world is deterministic, there is no such world. Hence, no agent in a deterministic

Why is it more violating to grab a stranger’s thigh or stroke their face than it is to grab their forearm? Why is it worse to read someone’s dream journal without permission than it is to read their bird watching field notes? Why are gestation mandates so incredibly intrusive? Intimacy is key to understanding these cases, and to explaining many of our most stringent rights. I present two ways of thinking

This paper argues for a theory of natural rights on which they are explained in terms of reasons supplied by rational consent. When B has a claim-right against A that A φ, A’s non-consent is not a ...

Published in Australasian Journal of Philosophy (Ahead of Print, 2024)

Cian Dorr, Jacob Nebel, and Jake Zuehl have argued that no objects are incomparable in value. One set of arguments they offer depart from a principle they call ‘Strong Monotonicity’, which states that if x is good and y is not good, then x is better than y. In this article, we respond to those arguments, thereby defending the possibility of value incomparability.

A novel theory of comparative risk is developed and defended. Extant theories are criticized for failing the tests of extensional and formal adequacy. A unified diagnosis is proposed: extant theories consider risk to be a univariable function, but risk is a multivariate function. According to the theory proposed, which we call the unified theory of risk, the riskiness of a proposition is a function

This paper generalizes the preface paradox beyond the conjunctive aggregation of beliefs and constructs an analogous paradox for deontic reasoning. The analysis of the deontic case suggests a systematic restriction of intuitive rules for reasoning with obligations. This proposal can be transferred to the epistemic case: It avoids the preface and the lottery paradox and saves one of the two directions

Can static pictures depict motion and temporal properties? This is an open question that is becoming increasingly discussed in both aesthetics and the philosophy of mind. Theorists working on this ...

Several influential thought experiments from Harman 1973 purport to show that unpossessed evidence can undermine knowledge. Recently, some epistemologists have appealed to these thought experiments in defense of a logically stronger thesis: unpossessed evidence can defeat justification. But these appeals fail to appreciate that Harman himself thought of his examples as Gettier cases, and so would have

Do the ethical features of an artwork bear on its aesthetic value? This movie endorses misogyny, that song is a civil rights anthem, the clay constituting this statue was extracted with underpaid labor—are facts like these the proper bases for aesthetic evaluation? I argue that this debate has suffered from a false presupposition: that if the answer is “yes” (for at least some such ethical features)

According to some dialetheists, we ought to reject the distinction between object and meta‐languages. Given that dialetheists advocate truth‐value gluts within their object‐language, whether in order to solve the liar paradox or for some other reason, this rejection of the object‐/meta‐language distinction comes with the commitment to use a glutty metatheory. While it has been pointed out that a glutty

The fear of death resists philosophical attempts at reconciliation. Building on theories of emotion, I argue that we can understand our fear as triggered by a de se mode of thinking about death whi...

This paper defends macroidealism: the thesis that physical truths metaphysically depend on truths about the phenomenal experiences of macroscopic subjects. I argue that macroidealism has explanator...

Published in Australasian Journal of Philosophy (Ahead of Print, 2024)

Theorists of aesthetic value since Hume have traditionally aimed to justify at least some comparative judgments of aesthetic value and to explain why we thereby have more reason to appreciate some ...

In philosophical work on the ethics of conversational exchange, much has been written regarding the speaker side—i.e., on the rights and duties we have as speakers. This paper explores the relatively neglected topic of the duties pertaining to the listeners’ side of the exchange. Following W.K. Clifford, we argue that it's fruitful to think of our epistemic resources as common property. Furthermore

Published in Australasian Journal of Philosophy (Ahead of Print, 2024)

Suppose there are no in-principle restrictions on the contents of arbitrarily intelligent agents’ goals. According to “instrumental convergence” arguments, potentially scary things follow. I do two things in this paper. First, focusing on the influential version of the instrumental convergence argument due to Nick Bostrom, I explain why such arguments require an account of “promotion”, i.e., an account

It has recently become popular to analyze scenarios in which we guess, in terms of a trade‐off between the accuracy of our guess (namely, its credence) and its specificity (namely, how many answers it rules out). Dorst and Mandelkern describe an account of guessing, based on epistemic utility theory (EUT), in which permissible guesses vary depending on how one weighs accuracy against specificity. We

Could you have taken precautions against a risk you were unaware of? This question lies at the heart of debates in ethics and legal philosophy concerning whether it's justifiable to blame or punish those who cause harm inadvertently or out of ignorance. But the question is crucially ambiguous, depending on what is understood to be inside or outside the scope of the ‘could’. And this ambiguity undermines

Published in Australasian Journal of Philosophy (Ahead of Print, 2024)

This article takes issue with two prominent views in the current debate around epistemic partiality in friendship. Strong views of epistemic partiality hold that friendship may require biased beliefs in direct conflict with epistemic norms. Weak views hold that friendship may place normative expectations on belief formation but in a manner that does not violate these norms. It is argued that neither

One of the major challenges in the philosophy of religion is theological fatalism — roughly, the claim that divine omniscience is incompatible with free will. In this article, I present new reasons to be sceptical of what I consider to be the strongest argument for theological fatalism. First, I argue that divine foreknowledge is not necessary for an argument against free will if we take into account

According to many philosophers, “the meaning of life” refers to our cosmic purpose, the activity that we were created by God or a purposive universe to perform. If there is no God or teleology, there is no such thing as the meaning of life. But this need not be the last word on the matter. In this paper, I ask what the benefits provided by a cosmic purpose are, and go on to argue that thinking of our

For agents like us, the feeling of effort is a very useful thing. It helps us sense how hard an action is, control its level of intensity, and decide whether to continue or stop performing it. Whil...

Generics have historically proven difficult to analyse using the tools of formal semantics. In this paper, I argue that an influential theory of the meaning of generics due to Sarah-Jane Leslie, the Psychological Theory of Generics, is best interpreted not as a theory of their meaning, but as a theory of the psychological heuristics that we use to judge whether or not generics are true. I argue that

There are two broad views in the epistemology of testimony, conservatism and liberalism. The two views disagree over a particular necessary condition on testimonial justification: the positive reasons requirement (PRR). Perhaps the most prominent objection levelled at liberalism from the conservative camp stems from gullibility; without PRR, the thought goes, an objectionable form of gullibility looms