Russellian monists argue that non-structural properties, or a combination of structural and non-structural properties, necessitate phenomenal properties. Different Russellian monists offer varying accounts of the structural/non-structural distinction, leading to divergent forms of Russellian monism. In this paper, I criticise Derk Pereboom’s characterisation of the structural/non-structural distinction proposed in his Consciousness and the Prospects of Physicalism and further work. I argue that from Pereboom’s characterisation of structural and non-structural properties, one can formulate general metaphysical principles concerning what structural and non-structural properties (...) necessitate. These principles undermine the claim that non-structural properties – either alone or in combination with structural properties – necessitate phenomenal properties. Moreover, these principles are not affected by our supposed inability to conceive of non-structural properties in a manner conducive to the success of conceivability arguments. (shrink)

Russellian physicalism is becoming increasingly popular because it promises to deliver what everybody wants, realism and physicalism about consciousness. But Russellian physicalists are not the first to swear on “the promise”, standard Type-B physicalism is a less fanciful view that also claims to give everything and take nothing. In this paper, I argue that our hopes should not be placed on Russellian physicalism because, unlike Type-B physicalism, it cannot explain how phenomenal concepts can reveal the nature of phenomenal properties without (...) weakening its physicalist credentials. The revelation challenge shows that Russellian physicalism is either committed to an anti-realist and self-defeating view of phenomenal concepts or it is physically unacceptable. (shrink)

Phenomenal consciousness appears to be particularly normatively significant. For this reason, sentience-based conceptions of ethics are widespread. In the field of animal ethics, knowing which animals are sentient appears to be essential to decide the moral status of these animals. I argue that, given that materialism is true of the mind, phenomenal consciousness is probably not particularly normatively significant. We should face up to this probable insignificance of phenomenal consciousness and move towards an ethic without sentience.

According to illusionism, phenomenal consciousness is an introspective illusion. The illusion problem is to explain the cause of the illusion, or why we are powerfully disposed to judge—erroneously—that we are phenomenally conscious. I propose a theory to solve the illusion problem. I argue that on the basis of three hypotheses about the mind—which I call introspective opacity, the infallibility intuition, and the justification constraint—we can explain our disposition, on introspection, to draw erroneous unconscious inferences about our sensory states. Being subject (...) to the illusion of phenomenal consciousness consists in having this disposition. I explain our ‘problem intuitions’ about consciousness —that our sensory states bear phenomenal properties that are qualitatively like something with which we are directly acquainted that is ineffable, atomic, intrinsic, private, and non-physical. I also address the illusion meta-problem, which is to explain why illusionism seems especially counterintuitive. (shrink)

Why do we tend to think that phenomenal consciousness poses a hard problem? The answer seems to lie in part in the fact that we have the impression that phenomenal experiences are presented to us in a particularly immediate and revelatory way: we have a sense of acquaintance with our experiences. Recent views have offered resources to explain such persisting impression, by hypothesizing that the very design of our cognitive systems inevitably leads us to hold beliefs about our own experiences (...) with certainty. I argue against this kind of “designed certainty” views. First, I claim that it is doubtful that we really hold beliefs about our own experiences with certainty—in any sense of certainty that would make our phenomenal beliefs special. Second, I claim that, even if it were the case that we hold beliefs about experiences with certainty, this would fall short of explaining our sense of acquaintance. (shrink)

In 'Ethics Without Sentience: Facing Up to the Probable Insignificance of Phenomenal Consciousness' (Kammerer, 2022), I argued that phenomenal consciousness is probably normatively insignificant, and does not play a significant normative role. In 'Preserving the Normative Significance of Sentience' (Dung, 2024), Leonard Dung challenges my reasoning and defends sentientism about value and moral status against my arguments. Here I respond to Dung's criticism, pointing out three flaws in his reply. My conclusion is that the view that phenomenal consciousness is distinctively (...) significant is still very much under threat. (shrink)