University of Colorado, Boulder
Department of Philosophy
PhD, 82
New Orleans, Louisiana, United States of America
Areas of Specialization
Epistemology
Metaphysics
Applied Ethics
  •  8814
    Cogito Ergo Sum
    Journal of Philosophy 90 (9): 462-468. 1993.
  •  3483
    Dreaming and certainty
    Philosophical Studies 45 (May): 353-368. 1984.
    I argue that being wide awake is an epistemic virtue which enables me to recognize immediately that I'm wide awake. Also I argue that dreams are imaginings and that the wide awake mind can immediately discern the difference between imaginings and vivid sense experience. Descartes need only pinch himself.
  •  2665
    Skepticism as a theory of knowledge
    Philosophy and Phenomenological Research 60 (3): 527-545. 2000.
    Skepticism about the external world may very well be correct, so the question is in order: what theory of knowledge flows from skepticism itself? The skeptic can give a relatively simple and intuitive account of knowledge by identifying it with indubitable certainty. Our everyday ‘I know that p’ claims, which typically are part of practical projects, deploy the ideal of knowledge to make assertions closely related to, but weaker than, knowledge claims. The truth of such claims is consistent with…Read more
  •  2499
    Games and Family Resemblances
    Philosophical Investigations 17 (No. 2). 1994.
    An account of the feature all games share in virtue of which they are games.
  •  1535
    A theory of religion revised
    Religious Studies 37 (2): 177-189. 2001.
    A (revised) account of what all and only religions have in common in virtue of which they are religions.
  •  1289
    Why there still are no people
    Philosophy and Phenomenological Research 70 (1): 174-191. 2005.
    This paper argues that there are no people. If identity isn't what matters in survival, psychological connectedness isn't what matters either. Further, fissioning cases do not support the claim that connectedness is what matters. I consider Peter Unger's view that what matters is a continuous physical realization of a core psychology. I conclude that if identity isn't what matters in survival, nothing matters. This conclusion is deployed to argue that there are no people. Objections to Eliminati…Read more
  •  1146
    A Theory of Religion
    Religious Studies 27 (3): 337-351. 1991.
    An account of what all and only religions share in virtue of which they are religions.
  •  1096
    I argue that a version of Pascal's Wager applies to the persistent vegetative state with sufficient force that it ought to part of advance directives.
  •  1057
    Advance directives typically have two defects. First, most advance directives fail to enable people to effectively avoid unwanted medical intervention. Second, most of them have the potential of ending your life in ways you never intended, years before you had to die.
  •  984
    Contextualism and warranted assertion
    Pacific Philosophical Quarterly 88 (1). 2007.
    Contextualists offer "high-low standards" practical cases to show that a variety of knowledge standards are in play in different ordinary contexts. These cases show nothing of the sort, I maintain. However Keith DeRose gives an ingenious argument that standards for knowledge do go up in high-stakes cases. According to the knowledge account of assertion (Kn), only knowledge warrants assertion. Kn combined with the context sensitivity of assertability yields contextualism about knowledge. But is K…Read more
  •  898
    Free will as a gift from God: A new compatibilism
    Philosophical Studies 92 (3): 257-281. 1998.
    I argue that God could give us the robust power to do other than we do in a deterministic universe.
  •  774
    Why there are still no people
    Philosophy and Phenomenological Research 70 (1): 174-192. 2005.
    This paper will argue that there are no people. Let me summarize the argument. In part II of what follows, I argue that if identity isn't what matters in survival, psychological connectedness isn't what matters either. Psychological connectedness, according to Derek Parfit, is the 'holding of particular direct psychological connections,' for example, when a belief, a desire, or some other psychological feature continues to be had ; psychological connectedness consists in two other relations—rese…Read more
  •  582
    On staying the same
    Analysis 63 (4): 288-291. 2003.
  •  262
    Parfit and the Buddha: Why there are no people
    Philosophy and Phenomenological Research 48 (March): 519-32. 1988.
  •  253
    Abortion as murder?: A response
    Journal of Social Philosophy 26 (1): 129-146. 1995.
    I argue that people who believe fetuses have the same moral right to life as the rest of us have sufficient reasons to refuse to classify abortion as legal murder and to refuse to punish abortion as severely as legal murder.
  •  211
    Counterpart theory v. the multiverse: reply to Watson
    Analysis 71 (1): 96-100. 2011.
    Suppose that reality consists of parallel universes of every variety imaginable. No path through space and time leads from one to another, and each universe is causally isolated from the rest. Some physicists believe a ‘multiverse’ hypothesis not terribly distant from this one simplifies quantum mechanics and provides an elegant explanation of why our universe has its particular laws. Suppose as science advances we come to accept the multiverse hypothesis, so construed.
  •  208
    I find a lost wallet containing the owner's address and a lot of cash. Shall I keep it or return it? Suppose I have the ‘liberty of indifference’: whatever I do, I could have done otherwise. Indeed, part of what is meant in saying I act freely is that either way what I do is up to me. And let's allow this liberty requires that my choice is not a logical consequence of the past and natural laws. If I return the wallet, I could have kept it without violating a law of nature or changing the past. L…Read more
  •  166
    Why Potentiality Matters
    Canadian Journal of Philosophy 17 (4): 815-829. 1987.
    Do fetuses have a right to life in virtue of the fact that they are potential adult human beings? I take the claim that the fetus is a potential adult human being to come to this: if the fetus grows normally there will be an adult human animal that was once the fetus. Does this fact ground a claim to our care and protection? A great deal hangs on the answer to this question. The actual mental and physical capacities of a human fetus are inferior to those of adult creatures generally thought to l…Read more
  •  163
    ‘Unlucky’ Gettier Cases
    Pacific Philosophical Quarterly 94 (3): 421-430. 2013.
    This article argues that justified true beliefs in Gettier cases often are not true due to luck. I offer two ‘unlucky’ Gettier cases, and it's easy enough to generate more. Hence even attaching a broad ‘anti‐luck’ codicil to the tripartite account of knowledge leaves the Gettier problem intact. Also, two related questions are addressed. First, if epistemic luck isn't distinctive of Gettier cases, what is? Second, what do Gettier cases reveal about knowledge?
  •  146
  •  144
    Trumping the causal influence account of causation
    Philosophical Studies 142 (2). 2009.
    Here is a simple counterexample to David Lewis’s causal influence account of causation, one that is especially illuminating due to its connection to what Lewis himself writes: it is a variant of his trumping example.
  •  135
    CORNEA, Scepticism and Evil
    Australasian Journal of Philosophy 89 (1): 59-70. 2011.


    The Principle of Credulity: 'It is basic to human knowledge of the world that we believe things are as they seem to be in the absence of positive evidence to the contrary' [Swinburne 1996: 133]. This underlies the Evidential Problem of Evil, which goes roughly like this: ‘There appears to be a lot of suffering, both animal and human, that does not result in an equal or greater utility. So there's probably some pointless suffering. As God's existence precludes pointless suffering, theism is impla…

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  •  131
    Evidential atheism
    Philosophical Studies 114 (3). 2003.
    Here is a new version of the Evidential Problem of Evil.