Frank Hofmann

In a recent book (Tye 2017), Michael Tye argues that we have reason to attribute phenomenal consciousness to functionally similar robots like commander Data of Star Trek. He relies on a kind of inference to the best explanation – ‘Newton’s Rule’, as he calls it. I will argue that Tye’s liberal view of consciousness attribution fails for two reasons. First, it leads into an inconsistency in consciousness attributions. Second, and even more importantly, it fails because ceteris is not paribus. The big, categorical difference in history between Data-like robots on the one hand and human beings on the other hand defeats the ceteris paribus assumption, which can be seen by various considerations. So the inference rule cannot be applied. We should not attribute phenomenal consciousness to robots like Data.

I would like to propose a demonstrative transparency model of our immediate, introspective self-knowledge of experiences. It is a model entirely in line with transparency. It rests on three elements: mental demonstration, the capacity to apply concepts to what is given in experience, and ordinary inference. The model avoids inner sense, acquaintance, and any special kind of normativity or rationality. The crucial and new ingredient is mental demonstration. By mental demonstration we can refer indexically to the contents of our own experiences in a unique way. This allows for the application of ordinary, non-mental concepts in order to arrive at a judgment about what it is that one is experiencing. In a transparent way one can then move inferentially to the self-ascription of an experience with such a content. I compare the demonstrative model with other accounts of introspective self-knowledge.

This paper is concerned with the reconstruction of a core argument that can be extracted from Street’s ‘Darwinian Dilemma’ and that is intended to ‘debunk’ moral realism by appeal to evolution. The argument, which is best taken to have the form of an undermining defeater argument, fails, I argue. A simple, first formulation is rejected as a non sequitur, due to not distinguishing between the evolutionary process that influences moral attitudes and the cognitive system generating moral attitudes. Reformulations that respect the distinction and that could make the argument valid, however, bring in an implausible premise about an implication from evolutionary influence to unreliability. Crucially, perception provides a counterexample, and the fitness contribution of reliably accurate representation has to be taken into account. Then the moral realist can explain why and how evolution indirectly cares for the truth of moral attitudes. The one and only condition that has to be satisfied in order for this explanation to work is the sufficient epistemic accessibility of moral facts. As long as the moral facts are sufficiently reliably representable, one can see how evolution could favor getting it right about the moral facts. Interestingly, apart from this epistemic constraint no further constraint and, in particular, no objectivity constraint on what the moral facts have to be like can be derived. Thus, the only problem for the moral realist is to make good on epistemic access to moral facts—an old problem, not a new one.

Quite plausibly, epistemic justification and rationality is tied to possession of evidence. According to Williamson, one’s evidence is what one knows. This is not compatible with non-epistemic perception, however, since non-epistemic perception does not require belief in what one perceives and, thus, does not require knowledge of the evidence – and, standardly, knowledge does require belief. If one non-epistemically perceives a piece of evidence, this can be sufficient for possessing it as evidence. Williamson’s arguments for the necessity of belief will be discussed and rebutted. Interestingly, the view that non-epistemic perception is sufficient for possession of evidence can allow for conceptual or non-conceptual content of perception and it provides the framework for a neo-foundationalist account of epistemic justification.

In a recent book, Michael Tye argues that we have reason to attribute phenomenal consciousness to functionally similar robots like commander Data of Star Trek. He relies on a kind of inference to the best explanation – ‘Newton’s Rule’, as he calls it. I will argue that Tye’s liberal view of consciousness attribution fails for two reasons. First, it leads into an inconsistency in consciousness attributions. Second, and even more importantly, it fails because ceteris is not paribus. The big, categorical difference in history between Data-like robots on the one hand and human beings on the other hand defeats the ceteris paribus assumption, which can be seen by various considerations. So the inference rule cannot be applied. We should not attribute phenomenal consciousness to robots like Data.

Eine der neueren Herausforderungen in der Erkenntnistheorie, die die Frage nach der Struktur epistemischer Werte aufwirft, stellt die so genannte Mehrwert-Intuition dar: Wissen scheint mehr Wert zu haben als bloß wahre Meinung. Ein Wahrheitsmonist vertritt die Auffassung, dass wahre Meinung der einzige intrinsische epistemische Wert ist. Es soll gezeigt werden, dass und wie sich im Rahmen des Wahrheitsmonismus die Mehrwert-Intuition einfangen lässt. Wir können, wie Frege, BonJour, Beckermann und viele andere, an der Wahrheit als einzigem intrinsischem Wert in der Epistemologie festhalten. Und im Rahmen des Wahrheitsmonismus lässt sich eine klar verständliche Struktur der epistemischen Werte entwickeln

I would like to propose a demonstrative transparency model of our immediate, introspective self-knowledge of experiences. It is a model entirely in line with transparency. It rests on three elements: mental demonstration, the capacity to apply concepts to what is given in experience, and ordinary inference. The model avoids inner sense, acquaintance, and any special kind of normativity or rationality. The crucial and new ingredient is mental demonstration. By mental demonstration we can refer indexically to the contents of our own experiences in a unique way. This allows for the application of ordinary, non-mental concepts in order to arrive at a judgment about what it is that one is experiencing. In a transparent way one can then move inferentially to the self-ascription of an experience with such a content. I compare the demonstrative model with other accounts of introspective self-knowledge.

Ever since the works of Alfred Tarski and Frank Ramsey, two views on truth have seemed very attractive to many people. On the one hand, the correspondence theory of truth seemed to be quite promising, mostly, perhaps, for its ability to accomodate a realistic attitude towards truth. On the other hand, a minimalist conception seemed appropriate since it made things so simple and unmysterious. So even though there are many more theories of truth around - the identity theory, the prosentential theory, etc. -, it is fair to say that these two views have acquired the status of the main contenders in the field. Most recently, John Searle and David Lewis have taken sides on the issue. Searle defends a new version of the correspondence theory which takes facts to be the correspondents of true statements, whereas Lewis wants to hold on to a minimalist conception of truth - allowing for an appendix of purely ontological claims that he extracts from the correspondence theory. What is new is that both have tried to see the correspondence theory not as a rival to the minimalist conception, but rather as essentially compatible with it. Still, in the end, Searle arrives at his version of the correspondence theory, and Lewis votes for minimalism. Both philosophers have sympathy with the spirit of the correspondence theory, to say the least. So one wonders why it is that they come to so different conclusions. Both start from the spirit of the correspondence theory, and both see it as essentially compatible with the heart of the minimalist conceptions, and still is there no agreement on what theory is to be accepted in the end.

The paper attempts to give an account of the introspective self-knowledge of our own experiences which is in line with representationalism about phenomenal consciousness and the transparency of experience. A two-step model is presented. First, a demonstrative thought of the form ‚I am experiencing this’ is formed which refers to what one experiences, by means of attention. Plausibly, this thought is knowledge, since safe. Second, a non-demonstrative thought of the form ‚I am experiencing a pain’ occurs. This second self-ascription is justified inferentially, on the basis of the first, demonstrative thought. Thus, an account of introspective experiential self-knowledge can be developed which is richer and more adequate to the phenomena than pure reliabilism and Dretske’s displaced perception model. There is really such a thing as introspection, but no inner sense.

Recently, a new movement of philosophers, called 'experimental philosophy', has suggested that the philosophers' favored armchair is in flames. In order to assess some of their claims, it is helpful to provide a theoretical background against which we can discuss whether certain facts are, or could be, evidence for or against a certain view about how philosophical intuitions work and how good they are. In this paper, I will be mostly concerned with providing such a theoretical background, and I will start discussing in which way experimental philosophy challenges the reliability of philosophical intuitions and how its challenge fits into some more theoretical considerations that also point towards a reliability problem for intuitions. The paper attempts to argue that a certain account of intuitions—the imaginationist account—is available which is well-suited for explicating the expertise reply to the challenge of experimental philosophy

Sydney Shoemaker has attempted to save mental causation by a new account of realization. As Brian McLaughlin argues convincingly, the account has to face two major problems. First, realization does not guarantee entailment. So even if mental properties are realized by physical properties, they need not be entailed by them. This is the first, rather general metaphysical problem. A second problem, which relates more directly to mental causation is that Shoemaker must appeal to some kind of proportionality as a constraint on causation in order to avoid redundant mental causation. I argue that, in addition, a “piling problem” arises, since causal powers seem to be bestowed twice. Then, I try to sketch an alternative view of the relation between causal powers and properties—a reductionist view—which fares better on some accounts. But it may have to face another and, perhaps, serious problem, the “problem of the natural unity of properties”. Finally, I will pose a question about the relation between causal powers and causation.

Recently, some philosophers have claimed that consciousness has an important epistemological role to play in the introspective self-ascription of one’s own mental states. This is the thesis of the epistemological role of consciousness for introspective self-knowledge. I will criticize BonJour’s account of the role of consciousness for introspection. He does not provide any reason for believing that conscious states are epistemically better off than non-conscious states. Then I will sketch a representationalist account of how the thesis could be true. Conscious states are available to the subject in a very special way in which non-conscious states are not available. This is the first part of the explanation. The crucial further element in the representationalist account is what I would like to call the ‘introspective mode of mind’. A mind can operate in certain ways or modes – modes of mind. Introspection normally takes place in the introspective mode of mind, judgments about one’s environment in the mode of ‘taking one’s appearances at face value’. And there probably are other modes of mind. The introspective mode of mind is characterized by the special way or framework in which cognitive capacities are employed

Plato’s Meno problem is the problem of why knowledge is better than true belief which is not knowledge. The paper studies the account of this surplus value of knowledge that recent reliabilist virtue epistemologists like John Greco and Ernest Sosa have proposed: knowledge is true belief from epistemic virtue. I reconstruct the master argument which subsumes the epistemic case under the general case of success from virtue. Five accounts of virtue are presented and discussed critically. The result is that only the fifth account – the refined dispositionalist account of virtue, based on an idea of J.J. Thomson – is viable, for the purposes of accounting for the surplus value of knowledge along the lines of the master argument. However, there is at least one remaining question, namely, of why success from virtue has surplus value in general

I distinguish between three kinds of reliabilism for epistemic justification, namely, pure reliabilism, evidential reliabilism, and reasons reliabilism, and I argue for reasons reliabilism. Pure reliabilism and evidential reliabilism are plagued, most importantly, by the generality problem, and they cannot deal adequately with defeater phenomena. One can avoid these problems only by jettisoning the idea of process reliability. The truth connection ? which is essential for any kind of reliabilism ? has to be provided in an altogether different way, namely, by means of facts in the world which serve as objective reasons (or evidence). So, as reasons reliabilism says, a justified belief has to be anchored in an objective reason which speaks in favor of its truth. Only in this way can intuitions about defeaters be preserved and explained. And reasons reliabilism can avoid the generality problem