Yujin Nagasawa

Peter Millican (2004) provides a novel and elaborate objection to Anselm's ontological argument. Millican thinks that his objection is more powerful than any other because it does not dispute contentious 'deep philosophical theories' that underlie the argument. Instead, it tries to reveal the 'fatal flaw' of the argument by considering its 'shallow logical details'. Millican's objection is based on his interpretation of the argument, according to which Anselm relies on what I call the 'principle of the superiority of existence' (PSE). I argue that (i) the textual evidence Millican cites does not provide a convincing case that Anselm relies on PSE and that, moreover, (ii) Anselm does not even need PSE for the ontological argument. I introduce a plausible interpretation of the ontological argument that is not vulnerable to Millican's objection and conclude that even if the ontological argument fails, it does not fail in the way Millican thinks it does

Skeptical theists purport to undermine evidential arguments from evil by appealing to the fact that our knowledge of goods, evils, and their interconnections is significantly limited. Michael J. Almeida and Graham Oppy have recently argued that skeptical theism is unacceptable because it results in a form of moral skepticism which rejects inferences that play an important role in our ordinary moral reasoning. In this reply to Almeida and Oppy’s argument we offer some reasons for thinking that skeptical theism need not lead to any such objectionable form of moral skepticism

When patients are in vegetative states and their lives are maintained by medical devices, their surrogates might offer proxy consents on their behalf in order to terminate the use of the devices. The so-called ’substituted judgment thesis’ has been adopted by the courts regularly in order to determine the validity of such proxy consents. The thesis purports to evaluate proxy consents by appealing to putative counterfactual truths about what the patients would choose, were they to be competent. The aim of this paper is to reveal a significant limitation of the thesis, which has hitherto been recognised only vaguely and intuitively. By appealing to the metaphysics of counterfactuals I explain how the thesis fails to determine the validity of proxy consents in a number of actual cases.

The knowledge argument is an argument against physicalism that was first formulated by Frank Jackson in 1982. While Jackson no longer endorses it, it is still regarded as one of the most important arguments in the philosophy of mind. Physicalism is the metaphysical thesis that, roughly speaking, everything in this world—including tables, galaxies, cheese cakes, cars, atoms, and even our sensations— are ultimately physical. The knowledge argument attempts to undermine this thesis by appealing to the following simple imaginary scenario: Mary is confined to a black-and-white room, is educated through black-and-white books and through lectures relayed on black-and white television. In this way she learns everything there is to know about the physical nature of the world. She knows all the physical facts about us and our environment, in a wide sense of ‘physical’ which includes everything in completed physics, chemistry, and neurophysiology, and all there is to know about the causal and relational facts consequent upon all this, including of course functional roles. (Jackson 1986, p. 291) The knowledge argument says that if physicalism is true, Mary knows everything in this world. However, it seems obvious that her knowledge is not yet complete. Suppose that..

In God and Phenomenal Consciousness, Yujin Nagasawa bridges debates in two distinct areas of philosophy: the philosophy of mind and the philosophy of religion. First, he introduces some of the most powerful arguments against the existence of God and provides objections to them. He then presents a parallel structure between these arguments and influential arguments offered by Thomas Nagel and Frank Jackson against the physicalist approach to phenomenal consciousness. By appealing to this structure, Nagasawa constructs novel objections to Jackson's and Nagel's arguments. Finally, he derives, from the failure of these arguments, a unique metaphysical thesis, which he calls 'non-theoretical physicalism'. Through this thesis, he shows that although this world is entirely physical, there are physical facts that cannot be captured even by complete theories of the physical sciences.