•  1161
    According to the most popular theories of intentionality, a family of theories we will refer to as “functional intentionality,” a machine can have genuine intentional states so long as it has functionally characterizable mental states that are causally hooked up to the world in the right way. This paper considers a detailed description of a robot that seems to meet the conditions of functional intentionality, but which falls victim to what I call “the composition problem.” One obvious way to esc…Read more
  •  540
    What Is Realistic about Putnam’s Internal Realism?
    Philosophical Topics 20 (1): 49-83. 1992.
    Failure to recognize the "realistic" motivations for Putnam's commitment to internal realism has led to a widely shared misunderstanding of Putnam's arguments against metaphysical realism. Realist critics of these arguments frequently offer rebuttals that fail to confront his arguments. Simply put, Putnam's arguments --the brains in a vat argument as well as the model-theoretic argument -- are "reductios" that are intended to show that "metaphysical realism itself is not sufficiently realistic".…Read more
  •  499
    A Dogma of Metaphysical Realism
    American Philosophical Quarterly 32 (1): 1-11. 1995.
    There is a dogma about metaphysical realism that is well nigh universal: "If one is a metaphysical realist about the external world, then one ought to be a semantic realist about external- world statements". I argue that this dogma should be rejected. It is possible for a metaphysical realist to be a "semantic dualist", holding that some middle- sized object statements receive a realist interpretation, but that most such statements require an antirealist interpretation. To show that a semantical…Read more
  •  427
    A Semantics for Virtual Environments and the Ontological Status of Virtual Objects
    APA Newsletter on Philosophy and Computers 9 (1): 15-19. 2009.
    Virtual environments engage millions of people and billions of dollars each year. What is the ontological status of the virtual objects that populate those environments? An adequate answer to that question requires a developed semantics for virtual environments. The truth-conditions must be identified for “tree”-sentences when uttered by speakers immersed in a virtual environment (VE). It will be argued that statements about virtual objects have truth-conditions roughly comparable to the verific…Read more
  •  322
    Why God is not a semantic realist
    In William P. Alston (ed.), Realism & Antirealism, Cornell Up. pp. 131--48. 2002.
    Traditional theists are, with few exceptions, global semantic realists about the interpretation of external world statement. Realism of this kind is treated by many as a shibboleth of traditional Christianity, a sine qua non of theological orthodoxy. Yet, this love affair between theists and semantic realism is a poor match. I suggest that everyone (theist or no) has compelling evidence drawn from everyday linguistic practice to reject a realist interpretation of most external world statements…Read more
  •  302
    The Role of Valence in Intentionality
    Mind and Matter 15 (1): 71-90. 2017.
    Functional intentionality is the dominant theory about how mental states come to have the content that they do. Phenomenal intentionality is an increasingly popular alternative to that orthodoxy, claiming that intentionality cannot be functionalized and that nothing is a mental state with intentional content unless it is phenomenally conscious. There is a consensus among defenders of phenomenal intentionality that the kind of phenomenology that is both necessary and sufficient for having a belie…Read more
  •  213
    What is the model-theoretic argument?
    Journal of Philosophy 90 (6): 311-322. 1993.
    In a recent article, James Van Cleve joins a growing throng who have argued that Hilary Putnam's model-theoretic argument (and his "just more theory" response) begs the question against those who hold externalist theories of reference. Van Cleve has misinterpreted Putnam's argument. Putnam does not demand that the statements which make up the causal theory of reference must, themselves, do the reference-fixing. That would be question-begging. Rather, Putnam's argument is a "reductio", which can …Read more
  •  210
    Consciousness and realism
    Journal of Consciousness Studies 14 (1): 1-17. 2007.
    There is a long and storied history of debates over 'realism' that has touched literally every academic discipline. Yet realism- antirealism debates play a relatively minor role in the contemporary study of consciousness. In this paper four basic varieties of realism and antirealism are explored and their potential impact on the study of consciousness is considered. Reasons are offered to explain why there is not more debate over these issues, including a discussion of the powerful influence of …Read more
  •  144
    Causality-Dependent Consciousness and Consciousness-Dependent Causality
    Journal of Consciousness Studies 19 (5-6): 5-6. 2012.
    This paper has two main goals. First, it asks whether causality is an adequate foundation for those theories of cognition and consciousness that are built upon it. The externalist revolution has reconceived all three dimensions of cognition -- the semantic, the epistemological, and the mental -- upon a foundation of 'causal connections of the appropriate type'. Yet, these new theories almost completely ignore the long-standing controversies surrounding the very nature of causality, and the very …Read more
  • The Realism-Idealism Debate: Theoretical and Practical
    Dissertation, Harvard University. 1987.
    The thesis of this dissertation is that "the realism-idealism debate" is both a theoretical and a practical dispute. The practical dimension has been largely ignored because the deficiencies in the theoretical positions have gone unnoticed. As theoretical doctrines, realism and idealism are best interpreted as semantic theories specifying the conditions in virtue of which our statements are true and false. As semantic doctrines, however, both realism and idealism are false. Neither semantic theo…Read more