Johannesburg, Gauteng, South Africa
Areas of Specialization
Epistemology
Social Epistemology
Meta-Ethics
  •  8
    How Knowledge Brokers Shape the Evidence-Based Policy Landscape
    with Hannah Rubin, Remco Heesen, Mike D. Schneider, Alejandro Bortolus, Emelda E. Chukwu, Chad L. Hewitt, Ricardo Kaufer, Hanna Metzen, Anne Schwenkenbecher, Evangelina Schwindt, Temitope O. Sogbanmu, Helena Slanickova, Katie Woolaston, and Li-an Yu
    Knowledge brokers, usually conceptualized as passive intermediaries between scientists and policymakers in evidence-based policymaking, are understudied in philosophy of science. Here, we challenge that usual conceptualization. As agents in their own right, knowledge brokers have their own goals and incentives, which complicate the effects of their presence at the science-policy interface. We illustrate this in an agent-based model and suggest several avenues for further exploration of the role …Read more
  •  263
    A puzzle about knowledge ascriptions
    with Brian Porter, Kelli Barr, Abdellatif Bencherifa, Wesley Buckwalter, Yasuo Deguchi, Emanuele Fabiano, Takaaki Hashimoto, Julia Halamova, Joshua Homan, Kaori Karasawa, Martin Kanovsky, Hackjin Kim, Jordan Kiper, Minha Lee, Xiaofei Liu, Rukmini Bhaya, Ljiljana Pantovic, Pablo Quintanilla, Josien Reijer, Pedro Romero, Purmina Singh, Salma Tber, Daniel Wilkenfeld, Stephen Stich, Clark Barrett, and Edouard Machery
    Noûs 59 (2): 392-408. 2025.
    Philosophers have argued that stakes affect knowledge: a given amount of evidence may suffice for knowledge if the stakes are low, but not if the stakes are high. By contrast, empirical work on the influence of stakes on ordinary knowledge ascriptions has been divided along methodological lines: “evidence‐fixed” prompts rarely find stakes effects, while “evidence‐seeking” prompts consistently find them. We present a cross‐cultural study using both evidence‐fixed and evidence‐seeking prompts with…Read more
  •  14
    Science–policy research collaborations need philosophers
    with Mike D. Schneider, Temitope O. Sogbanmu, Hannah Rubin, Alejandro Bortolus, Emelda E. Chukwu, Remco Heesen, Chad L. Hewitt, Ricardo Kaufer, Hanna Metzen, Anne Schwenkenbecher, Evangelina Schwindt, Helena Slanickova, Katie Woolaston, and Li-an Yu
  •  23
    A model of faulty and faultless disagreement for post-hoc assessments of knowledge utilization in evidence-based policymaking
    with Remco Heesen, Hannah Rubin, Mike D. Schneider, Katie Woolaston, Alejandro Bortolus, Emelda E. Chukwu, Ricardo Kaufer, Anne Schwenkenbecher, Evangelina Schwindt, Helena Slanickova, Temitope O. Sogbanmu, and Chad L. Hewitt
    When evidence‑based policymaking is so often mired in disagreement and controversy, how can we know if the process is meeting its stated goals? We develop a novel mathematical model to study disagreements about adequate knowledge utilization, like those regarding wild horse culling, shark drumlines and facemask policies during pandemics. We find that, when stakeholders disagree, it is frequently impossible to tell whether any party is at fault. We demonstrate the need for a distinctive kind of t…Read more
  •  24
    Why we cannot separate evidence from values in public policy
    with Anne Schwenkenbecher, Hanna Metzen, Helena Slanickova, Alejandro Bortolus, Emelda E. Chukwu, Remco Heesen, Chad L. Hewitt, Ricardo Kaufer, Hannah Rubin, Mike D. Schneider, Evangelina Schwindt, Temitope O. Sogbanmu, Katie Woolaston, and Li-an Yu
    Whether or not any particular policy is adequate by EBP's own standard—being evidence‐based—cannot be decided without appeal to value‐based considerations. We support this claim in two steps. First, we argue that which evidence gets used in policy‐making depends on our value commitments, which are rarely made explicit, let alone being the subject of critical and transparent reflection. In other words, value commitments are not just important at the point of spelling out specific policy details a…Read more
  •  252
    Why We Cannot Separate Evidence From Values in Public Policy
    with Anne Schwenkenbecher, Hanna Metzen, Helena Slanickova, Alejandro Bortolus, Emelda E. Chukwu, Remco Heesen, L. Hewitt, Chad,, Ricardo Kaufer, Hannah Rubin, Mike D. Schneider, Evangelina Schwindt, Temitope O. Sogbanmu, Katie Woolaston, and Li-an Yu
    Politics and Policy 54 (2). 2026.
    Whether or not any particular policy is adequate by EBP's own standard—being evidence-based—cannot be decided without appeal to value-based considerations. We support this claim in two steps. First, we argue that which evidence gets used in policy-making depends on our value commitments, which are rarely made explicit, let alone being the subject of critical and transparent reflection. In other words, value commitments are not just important at the point of spelling out specific policy details a…Read more
  •  21
    Epistemic reparations and the right to be known: introduction
    Philosophical Studies 183 (3): 785-792. 2026.
    This introduction reflects on the papers in the Special Issue under five broad themes—Theoretical Frameworks for Epistemic Reparations; Structural Epistemic Wrongs and Reparations; Hostile Contexts and Epistemic Agency; The Right to Be Known and the Duty to Bear Witness; and Applying the Epistemic Reparations Framework. Any grouping of such a rich tapestry of papers is bound to be somewhat artificial. So, the aim here is not to reduce each paper to a single theme, but rather to show off the rich…Read more
  •  20
    In this paper, I further defend the view, originally developed in Mitova (2022), that certain social identity groups have distinctive epistemic reasons in virtue of constituting this group. I respond to three critics—Cameron Boult (2023), Xiaofei Liu (2023), and Anne Schwenkenbecher (2024).
  •  733
    The Ethics of Belief in Conspiracy Theory
    In Melina Tsapos & David Coady (eds.), Conspiracy Theory and Society Research Handbook, Edward Elgar Publishing. forthcoming.
    The ethics of belief is concerned with what we should believe. This paper is on the ethics of conspiracy belief: should we sometimes believe in conspiracy theories? In the first part, we discuss whether conspiracy theorists are responsible for their beliefs. We argue that they are. Conspiracy beliefs are subject to robust epistemic evaluations since they can be sufficiently responsive to epistemic reasons, thus differing from paradigmatic delusions. In the second part, we consider the epistemic …Read more
  •  52
    Irreparable Epistemic Wrongs
    Philosophical Studies 183 (3): 899-917. 2026.
    The notion of epistemic reparations has recently gained increasing attention in social epistemology. These are reparations due to victims of distinctively epistemic wrongs attaching to gross human rights violations. An example of such a wrong is not having the true story about yourself known due to being wrongfully convicted of murder (Lackey, 2022). In the last few years, several authors have proposed accounts of epistemic reparations under various labels (Almassi, 2018; Lackey, 2022; Hull, 202…Read more
  •  36
    Hermeneutical relationships
    Inquiry: An Interdisciplinary Journal of Philosophy 69 (4): 1691-1709. 2026.
    ABSTRACT According to a recent proposal by Cameron Boult, epistemic blame is best understood as a modification of one's epistemic relationship with the blamee. This ‘relationship modification account’ (RMA) has many welcome theoretical consequences for social epistemology. For instance, it gives us new tools for analysing cases of testimonial injustice, epistemic exploitation, and gaslighting. In this paper, I extend RMA to other kinds of epistemic injustice. I first identify a gap in RMA: while…Read more
  •  583
    Knowledge Brokers at the Science-Policy Interface: Insights from Biosecurity and Environmental Management
    with Alejandro Bortolus, Chad L. Hewitt, Evangelina Schwindt, Temitope O. Sogbanmu, Emelda E. Chukwu, Remco Heesen, Ricardo Kaufer, Hannah Rubin, Mike D. Schneider, Anne Schwenkenbecher, Helena Slanickova, Katie Woolaston, and Li-an Yu
    Ambio. forthcoming.
    Determining appropriate mechanisms for transferring and translating research into policy has become a major concern for researchers (knowledge producers) and policymakers (knowledge users) worldwide. This has led to the emergence of a new function of brokering between researchers and policymakers, and a new type of agent called Knowledge Broker. Understanding these complex multi-agent interactions is critical for an efficient knowledge brokering practice during any given policymaking process. He…Read more
  •  52
    Motivated Irrationality, Epistemic Innocence, White Ignorance
    Philosophical Topics 51 (2): 93-112. 2023.
    According to the standard story, all motivated beliefs are epistemically blameworthy, because they are formed with an eye to practical benefit, rather than for the right—epistemic—reasons. Recently, Lisa Bortolotti has argued that, contra this story, some motivated beliefs are epistemically innocent. In this paper, I argue for two claims. First, Bortolotti’s account has the unfortunate implication that some paradigms of epistemically unjust belief are epistemically innocent. My central case are …Read more
  •  100
    Decolonial Epistemic Authority Reparations
    Episteme 1-15. forthcoming.
    According to a recent move in social epistemology, certain types of epistemic wrongs require distinctively epistemic reparations. For instance, if you have been wrongfully convicted of murder, you have not only the right to various kinds of economic and social reparations but also the ‘right to be known’ (Lackey 2022) – crudely, the right to tell the true story about yourself and be listened to. In this paper, I extend this framework to the context of epistemic decolonisation. I argue that the k…Read more
  •  75
    De-Idealising Epistemology Through Collectivising
    International Journal of Philosophical Studies 33 (2): 183-205. 2025.
    According to a recent argument, we should de-idealise analytic epistemology: when theorising our epistemic practices and obligations, we should stop abstracting away epistemically relevant features of knowers, such as their social identities. This paper puts in dialogue two apparently unrelated arguments for non-ideal epistemology – McKenna (2023) and Basu (2023) – focusing on the obligation to engage with challenges to our beliefs. I argue that while these are welcome first steps towards de-ide…Read more
  •  780
    A model of faulty and faultless disagreement for post-hoc assessments of knowledge utilization in evidence-based policymaking
    with Remco Heesen, Hannah Rubin, Mike D. Schneider, Katie Woolaston, Alejandro Bortolus, Emelda E. Chukwu, Ricardo Kaufer, Anne Schwenkenbecher, Evangelina Schwindt, Helena Slanickova, Temitope O. Sogbanmu, and Chad L. Hewitt
    Scientific Reports 14 18495. 2024.
    When evidence-based policymaking is so often mired in disagreement and controversy, how can we know if the process is meeting its stated goals? We develop a novel mathematical model to study disagreements about adequate knowledge utilization, like those regarding wild horse culling, shark drumlines and facemask policies during pandemics. We find that, when stakeholders disagree, it is frequently impossible to tell whether any party is at fault. We demonstrate the need for a distinctive kind of t…Read more
  •  983
    Science–policy research collaborations need philosophers
    with Mike D. Schneider, Temitope O. Sogbanmu, Hannah Rubin, Alejandro Bortolus, Emelda E. Chukwu, Remco Heesen, Chad L. Hewitt, Ricardo Kaufer, Hanna Metzen, Anne Schwenkenbecher, Evangelina Schwindt, Helena Slanickova, Katie Woolaston, and Li-an Yu
    Nature Human Behaviour 8 1001-1002. 2024.
    Wicked problems are tricky to solve because of their many interconnected components and a lack of any single optimal solution. At the science–policy interface, all problems can look wicked: research exposes the complexity that is relevant to designing, executing and implementing policy fit for ambitious human needs. Expertise in philosophical research can help to navigate that complexity.
  •  69
    Social Group Moral Encroachment
    Episteme 20 (4): 894-911. 2023.
    According to moral encroachers, the moral stakes of a belief partly determine how much evidence we need for the belief to count as knowledge. This view concerns the beliefs of individual believers. In this paper, I argue for a social group version of moral encroachment: dominant groups, such as white people or men, need to have more evidence than the marginalised in order for some of their beliefs to constitute knowledge. I argue for this claim in three steps. First, I spell out the group moral …Read more
  •  120
    Can theorising epistemic injustice help us decolonise?
    Inquiry: An Interdisciplinary Journal of Philosophy. forthcoming.
    The paper argues that some tools from the epistemic injustice literature can be fruitfully applied to the debate on epistemic decolonisation. The first step for such a project is to defuse recent misgivings about the liberatory potential of epistemic injustice scholarship. I group these misgivings under the slogan ‘Epistemic injustice is white-people stuff’, or ‘the WPS challenge’, for short, and use them to set desiderata for good theorising with epistemic injustice tools. I then look at three …Read more
  •  91
    Socialising epistemic risk: On the risks of epistemic injustice
    Metaphilosophy 54 (4): 539-552. 2023.
    Epistemic risk is of central importance to epistemology nowadays: one common way in which a belief can fail to be knowledge is by being formed in an epistemically risky way, that is, a way that makes it true by luck. Recently, epistemologists have been expanding this rather narrow conception of risk in every direction, except arguably the most obvious one—to enable it to accommodate the increasingly commonplace thought that knowledge has an irreducibly social dimension. This paper fills this lac…Read more
  •  67
    Clearing space for extreme psychologism about reasons
    South African Journal of Philosophy 35 (3): 293-301. 2016.
  •  73
    The Factive Turn in Epistemology (edited book)
    Cambridge University Press. 2017.
    When you believe something for a good reason, your belief is in a position to be justified, rational, responsible, or to count as knowledge. But what is the nature of this thing that can make such a difference? Traditionally, epistemologists thought of epistemic normative notions, such as reasons, in terms of the believer's psychological perspective. Recently, however, many have started thinking of them as factive: good reasons for belief are either facts, veridical experiences, or known proposi…Read more
  •  138
    Why Epistemic Decolonisation in Africa?
    Social Epistemology 37 (6): 739-752. 2023.
    The call to decolonise knowledge is gaining increasing popularity in African philosophy. But as scholarly attention to the topic intensifies, so do doubts about the usefulness of theorising it, especially in spaces – like Africa – that are riddled with deeper problems such as mass poverty and social disempowerment. I focus on three challenges that Bernard Matolino has recently issued. If these challenges are on the right track, they threaten to derail the whole project of epistemic decolonisatio…Read more
  •  87
    Introduction to the special issue: Skepticism, relativism, pluralism
    Inquiry: An Interdisciplinary Journal of Philosophy. forthcoming.
    The precise and proper territorial boundaries of skepticism, relativism, and pluralism have been perennial topics of debate in philosophy. Very few philosophers endorse these positions in an unqual...
  •  106
    The collective epistemic reasons of social-identity groups
    Asian Journal of Philosophy 1 (2): 1-20. 2022.
    In this paper, I argue that certain social-identity groups—ones that involve systematic relations of power and oppression—have distinctive epistemic reasons in virtue of constituting this group. This claim, I argue further, would potentially benefit at least three bodies of scholarship—on the epistemology of groups, on collective moral responsibility, and on epistemic injustice.
  •  170
    A New Argument for the Non-Instrumental Value of Truth
    Erkenntnis 88 (5): 1911-1933. 2021.
    Many influential philosophers have claimed that truth is valuable, indeed so valuable as to be the ultimate standard of correctness for intellectual activity. Yet most philosophers also think that truth is only instrumentally valuable. These commitments make for a strange pair. One would have thought that an ultimate standard would enjoy more than just instrumental value. This paper develops a new argument for the non-instrumental value of truth: (1) inquiry is non-instrumentally valuable; and (…Read more
  •  200
    Decolonising Knowledge Here and Now
    Philosophical Papers 49 (2): 191-212. 2020.
    The topic of epistemic decolonisation is currently the locus of lively debate both in academia and in everyday life. The aim of this piece is to isolate a few main strands in the philosophical literature on the topic, and draw some new connections amongst them through the lens of epistemic injustice. I first sketch what I take to be the core features of epistemic decolonisation. I then philosophically situate the topic. Finally, I map it in relation to key epistemic-injustice concepts and to the…Read more
  •  109
    Explanatory Injustice and Epistemic Agency
    Ethical Theory and Moral Practice 23 (5): 707-722. 2020.
    What is going on when we explain someone’s belief by appeal to stereotypes associated with her gender, sexuality, race, or class? In this paper I try to motivate two claims. First, such explanations involve an overlooked form of epistemic injustice, which I call ‘explanatory injustice’. Second, the language of reasons helps us shed light on the ways in which such injustice wrongs the victim qua epistemic agent. In particular, explanatory injustice is best understood as occurring in explanations …Read more
  •  42
    Believable Evidence
    Cambridge University Press. 2017.
    Believable Evidence argues that evidence consists of true beliefs. This claim opens up an entirely overlooked space on the ontology of evidence map, between purely factualist positions and purely psychologist ones. Veli Mitova provides a compelling three-level defence of this view in the first contemporary monograph entirely devoted to the ontology of evidence. First, once we see the evidence as a good reason, metaethical considerations show that the evidence must be psychological and veridical.…Read more
  •  154
    Why W. K. Clifford was a Closet Pragmatist
    Philosophical Papers 37 (3): 471-489. 2008.
    This Article does not have an abstract