Recent literature has paid attention to a demarcation problem for evolutionary debunking arguments. This is the problem of asking in virtue of what regulative metaepistemic norm evolutionary considerations either render a belief justified, or debunk it as unjustified. I examine the so-called ‘Milvian Bridge principle’ A new science of religion, Routledge, New York, 2012; Sloan, McKenny, Eggelson Darwin in the 21st century: nature, humanity, and God, University Press, Notre Dame, 2015)), which offers exactly such a called for regulative metaepistemic norm. (...) The Milvian Bridge principle suggests that the metaepistemic norm is: adaptive reliability for truth of cognitive processes that the existence of corresponding truth-making facts evolutionary theory justifies. I argue that the Milvian Bridge principle is problematic on a number of counts, something that is shown via spiraling ‘companions in guilt arguments’. Finally, I consider ‘the core reductionist objection’ to the critique of the Milvian Bridge principle and offer a response. I conclude that the Milvian Bridge principle is destabilized. (shrink)

Skeptical invariantism does not account for the intuitive connections between knowledge, assertion, and practical reasoning and this constitutes a significant problem for the position because it does not save corresponding epistemic appearances (cf. Hawthorne (2004:131-5)). Moreover, it is an attraction of fallibilist over infallibilist-skeptical views that they can easily account for the epistemic appearances about the connections between knowledge, assertion, and practical reasoning (cf. Williamson (2000:249-255)). Call this argument ‘the argument from the knowledge norm’. I motivate and develop a Humean, (...) pragmatist strategy for a skeptical response to ‘the argument from the knowledge norm’. Afterwards I outline a ‘toy’ version of pragmatic skepticism that can implement the strategy and save our everyday practice of assertion and practical reasoning. To this effect, I distinguish between assertibility conditions and truth conditions for ‘know’ and suggest that while assertibility conditions are pragmatic conditions sensitive to practical exigencies, truth conditions are semantic conditions sensitive only to truth. I briefly respond to three objections and conclude that pragmatic skepticism is resourceful enough to save our everyday practice of (fallibilist) assertion and practical reasoning and, hence, pay some due respect to corresponding epistemic appearances. (shrink)

I argue that, at least on the assumption that if there are epistemic facts they are irreducible, the evolutionary debunking maneuver is prima facie self-debunking because it seems to debunk a certain class of facts, namely, epistemic facts that prima facie it needs to rely on in order to launch its debunking arguments. I then appeal to two recent reconstructions of the evolutionary debunking maneuver (Kahane (2011), Griffiths and Wilkins (2015)) and find them wanting. Along the way I set aside (...) two ways (one envisaged, the other by Sterpetti (2015)) to avoid the self-debunking problem that I find unpromising. I conclude that the evolutionary debunking maneuver needs to clarify the meta-epistemological commitments upon which it is supposed to operate. (shrink)

In attempting to debunk moral realism through an appeal to evolutionary facts, debunkers face a series of problems, which we label the problems of scope, corrosiveness, and post‐hoc justification. To overcome these problems, debunkers must assume certain metaphysical or epistemological positions, or otherwise pre‐establish them. In doing so, they must assume or pre‐establish the very conclusion they seek in advancing the argument. This means that such debunking arguments either beg the question against the moral realist or are undermined as standalone (...) metaethical arguments. (shrink)

Arguments for some controversial positions in metaethics—typically moral scepticism or the moral error theory—are sometimes thought to overreach. They appear to entail sceptical or error‐theoretic views about non‐moral branches of thought in a sense that is costly or implausible. If this is true, those metaethical arguments should be rejected. This is the companions in guilt strategy in metaethics. In this article, the contemporary use of the companions in guilt strategy is explored and assessed. The methodology of the strategy is discussed, (...) and criteria for assessing specific instances of its use are identified. Prominent instances of its use in the contemporary literature are then examined. The focus is on those that take (a) epistemic judgment, (b) prudential judgment, and (c) mathematical judgment as “companions,” with a view to undermining the moral error theory and moral scepticism, respectively. (shrink)