Hilary Putnam, one of America’s most distinguished philosophers, surveys an astonishingly wide range of issues and proposes a new, clear-cut approach to philosophical questions—a renewal of philosophy. He contests the view that only science offers an appropriate model for philosophical inquiry. His discussion of topics from artificial intelligence to natural selection, and of reductive philosophical views derived from these models, identifies the insuperable problems encountered when philosophy ignores the normative or attempts to reduce it to something else.

First published in 1971, Professor Putnam's essay concerns itself with the ontological problem in the philosophy of logic and mathematics - that is, the issue of whether the abstract entities spoken of in logic and mathematics really exist. He also deals with the question of whether or not reference to these abstract entities is really indispensible in logic and whether it is necessary in physical science in general.

This collection of essays by Hilary Putnam, one of the very few contemporary grand masters of philosophy, presents the last development of Putnam's reflections regarding the core issue of his entire career: how to develop a form of philosophical realism able to account for both the scientific and the humanistic view of the world - that is, a conception in which the naturalistic view of the world can be reconciled with the acknowledgment that normative phenomena are a fundamental part (...) of our lives. Many great philosophers, from Hume to Kant, from Mill to Sellars, from Quine to Davidson, have faced this challenge."--Provided by publisher. (shrink)

This book brings together key players in the current debate on positive and normative science and philosophy and value judgements in economics. Both editors have engaged in these debates throughout their careers from its early foundations; Putnam as a doctorial student of Hans Reichenbach at UCLA and Walsh a junior member of Lord Robbinsâe(tm)s department at the London School of Economics, both in the early 1950s. This book collects recent contributions from Martha Nussbaum and Harvey Gram, as well as a (...) new chapter from the editors. (shrink)

This chapter contains section titled: Dummettian Antirealism The Error (and the Insight) in Verificationism Wittgenstein on Truth Suggested Reading.

In response to growing concerns of bias, discrimination, and unfairness perpetuated by algorithmic systems, the datasets used to train and evaluate machine learning models have come under increased scrutiny. Many of these examinations have focused on the contents of machine learning datasets, finding glaring underrepresentation of minoritized groups. In contrast, relatively little work has been done to examine the norms, values, and assumptions embedded in these datasets. In this work, we conceptualize machine learning datasets as a type of informational infrastructure, (...) and motivate a genealogy as method in examining the histories and modes of constitution at play in their creation. We present a critical history of ImageNet as an exemplar, utilizing critical discourse analysis of major texts around ImageNet’s creation and impact. We find that assumptions around ImageNet and other large computer vision datasets more generally rely on three themes: the aggregation and accumulation of more data, the computational construction of meaning, and making certain types of data labor invisible. By tracing the discourses that surround this influential benchmark, we contribute to the ongoing development of the standards and norms around data development in machine learning and artificial intelligence research. (shrink)

Can we reconcile the idea that we are free and responsible agents with the idea that what we do is determined according to natural laws? For centuries, philosophers have tried in different ways to show that we can. Hilary Bok takes a fresh approach here, as she seeks to show that the two ideas are compatible by drawing on the distinction between practical and theoretical reasoning.Bok argues that when we engage in practical reasoning--the kind that involves asking "what should (...) I do?" and sifting through alternatives to find the most justifiable course of action--we have reason to hold ourselves responsible for what we do. But when we engage in theoretical reasoning--searching for causal explanations of events--we have no reason to apply concepts like freedom and responsibility. Bok contends that libertarians' arguments against "compatibilist" justifications of moral responsibility fail because they describe human actions only from the standpoint of theoretical reasoning. To establish this claim, she examines which conceptions of freedom of the will and moral responsibility are relevant to practical reasoning and shows that these conceptions are not vulnerable to many objections that libertarians have directed against compatibilists. Bok concludes that the truth or falsity of the claim that we are free and responsible agents in the sense those conceptions spell out is ultimately independent of deterministic accounts of the causes of human actions.Clearly written and powerfully argued, Freedom and Responsibility is a major addition to current debate about some of philosophy's oldest and deepest questions. (shrink)

Can we reconcile the idea that we are free and responsible agents with the idea that what we do is determined according to natural laws? For centuries, philosophers have tried in different ways to show that we can. This text seeks to show that the two ideas are compatible by drawing on the distinction between practical and theoretical reasoning.

According to Bayesian epistemology, the epistemically rational agent updates her beliefs by conditionalization: that is, her posterior subjective probability after taking account of evidence X, pnew, is to be set equal to her prior conditional probability pold(·|X). Bayesians can be challenged to provide a justification for their claim that conditionalization is recommended by rationality—whence the normative force of the injunction to conditionalize? There are several existing justifications for conditionalization, but none directly addresses the idea that conditionalization will be epistemically rational (...) if and only if it can reasonably be expected to lead to epistemically good outcomes. We apply the approach of cognitive decision theory to provide a justification for conditionalization using precisely that idea. We assign epistemic utility functions to epistemically rational agents; an agent’s epistemic utility is to depend both upon the actual state of the world and on the agent’s credence distribution over possible states. We prove that, under independently motivated conditions, conditionalization is the unique updating rule that maximizes expected epistemic utility. (shrink)

Hilary Kornblith argues for a naturalistic approach to investigating knowledge. Knowledge, he explains, is a feature of the natural world, and so should be investigated using scientific methods. He offers an account of knowledge derived from the science of animal behavior, and defends this against its philosophical rivals. This controversial and refreshingly original book offers philosophers a new way to do epistemology.

Population axiology is the study of the conditions under which one state of affairs is better than another, when the states of affairs in ques- tion may differ over the numbers and the identities of the persons who ever live. Extant theories include totalism, averagism, variable value theories, critical level theories, and “person-affecting” theories. Each of these the- ories is open to objections that are at least prima facie serious. A series of impossibility theorems shows that this is no coincidence: (...) it can be proved, for various sets of prima facie intuitively compelling desiderata, that no axiology can simultaneously satisfy all the desiderata on the list. One’s choice of population axiology appears to be a choice of which intuition one is least unwilling to give up. (shrink)

I explore the prospects for modelling epistemic rationality (in the probabilist setting) via an epistemic decision theory, in a consequentialist spirit. Previous work has focused on cases in which the truth-values of the propositions in which the agent is selecting credences do not depend, either causally or merely evidentially, on the agent’s choice of credences. Relaxing that restriction leads to a proliferation of puzzle cases and theories to deal with them, including epistemic analogues of evidential and causal decision theory, and (...) of the Newcomb Problem and ‘Psychopath Button’ Problem. A variant of causal epistemic decision theory deals well with most cases. However, there is a recalcitrant class of problem cases for which no epistemic decision theory seems able to match our intuitive judgements of epistemic rationality. This lends both precision and credence to the view that there is a fundamental mismatch between epistemic consequentialism and the intuitive notion of epistemic rationality; the implications for understanding the latter are briefly discussed. (shrink)

It is widely agreed that first-person testimony is a good source of evidence, including testimony about the contents of mental states unobservable to others. Thus we generally think that an individual’s testimony is a good source of evidence about her wellbeing—after all, she experiences her quality of life and we don’t. However, some have argued that the first-person testimony of disabled individuals regarding their wellbeing is defeated: regardless of someone’s claim about how disability affects her overall wellbeing, other evidence about (...) disability undermines the force of her testimony with respect to our justified beliefs. In this paper, I argue that at least some cases of first-person testimony about disability is not defeated. Particularly, neither the existence of conflicting testimony nor evidence about disabilities’ associated harms or challenges successfully undermine either the content of the testimony or the reliability of the testifiers. While I do not claim that first-person testimony is the only evidence relevant to characterizing disability, I argue that it is not always blocked by other evidence about disability. At least some first-person testimony from disabled individuals is, therefore, undefeated evidence relevant to evaluating disability and overall wellbeing. (shrink)

Decisions, whether moral or prudential, should be guided at least in part by considerations of the consequences that would result from the various available actions. For any given action, however, the majority of its consequences are unpredictable at the time of decision. Many have worried that this leaves us, in some important sense, clueless. In this paper, I distinguish between ‘simple’ and ‘complex’ possible sources of cluelessness. In terms of this taxonomy, the majority of the existing literature on cluelessness focusses (...) on the simple sources. I argue, contra James Lenman in particular, that these would-be sources of cluelessness are unproblematic, on the grounds that indifference-based reasoning is far less problematic than Lenman (along with many others) supposes. However, there does seem to be a genuine phenomenon of cluelessness associated with the ‘complex’ sources; here, indifference-based reasoning is inapplicable by anyone’s lights. This ‘complex problem of cluelessness’ is vivid and pressing, in particular, in the context of Effective Altruism. This motivates a more thorough examination of the precise nature of cluelessness, and the precise source of the associated phenomenology of discomfort in forced-choice situations. The latter parts of the paper make some initial explorations in those directions. (shrink)

Hilary Kornblith presents a new account of mental reflection, and its importance for knowledge, reasoning, freedom, and normativity. He argues that reflection cannot solve the philosophical problems it has traditionally been thought to, and offers a more realistic, demystified view of its nature which draws on dual process approaches to cognition.

True benevolence is, most fundamentally, a desire that the world be better. It is natural and common, however, to frame thinking about benevolence indirectly, in terms of a desire to make a difference to how good the world is. This would be an innocuous shift if desires to make a difference were extensionally equivalent to desires that the world be better. This paper shows that at least on some common ways of making a “desire to make a difference” precise, this (...) extensional equivalence fails. Where it fails, “difference-making preferences” run counter to the ideals of benevolence. In particular, in the context of decision making under uncertainty, coupling a “difference-making” framing in a natural way with risk aversion leads to preferences that violate stochastic dominance, and that lead to a strong form of collective defeat, from the point of view of betterness. Difference-making framings and true benevolence are not strictly mutually inconsistent, but agents seeking to implement true benevolence must take care to avoid the various pitfalls that we outline. GPI Working Paper No. 16-2022. (shrink)

This article is a critical survey of the debate over the value of the social discount rate, with a particular focus on climate change. The ma- jority of the material surveyed is from the economics rather than from the philosophy literature, but the emphasis of the survey itself is on founda- tions in ethical and other normative theory rather than highly technical details. I begin by locating the standard approach to discounting within the overall landscape of ethical theory, and explaining (...) the assumptions and simplifications that are needed in order to arrive at the model that is standard in the discounting literature. The article then covers the general theory of the Ramsey equation and its relationship to observed interest rates, arguments for and against a positive rate of pure time preference, the consumption elasticity of utility, and the effect of various sorts of uncertainty on the discount rate. Finally, it turns specifically to the ap- plication of this debate to the case of climate change, focussing on the recent controversy over the low discount rate used in the Stern Review of the Economics of Climate Change. (shrink)

Difficulties over probability have often been considered fatal to the Everett interpretation of quantum mechanics. Here I argue that the Everettian can have everything she needs from `probability' without recourse to indeterminism, ignorance, primitive identity over time or subjective uncertainty: all she needs is a particular *rationality principle*. The decision-theoretic approach recently developed by Deutsch and Wallace claims to provide just such a principle. But, according to Wallace, decision theory is itself applicable only if the correct attitude to a future (...) Everettian measurement outcome is subjective uncertainty. I argue that subjective uncertainty is not to be had, but I offer an alternative interpretation that enables the Everettian to live without uncertainty: we can justify Everettian decision theory on the basis that an Everettian should *care about* all her future branches. The probabilities appearing in the decision-theoretic representation theorem can then be interpreted as the degrees to which the rational agent cares about each future branch. This reinterpretation, however, reduces the intuitive plausibility of one of the Deutsch -Wallace axioms. (shrink)

In “The Brokenness of Being,” Mari Ruti investigates the impact that trauma can have on being. Informed by her own experience of breast cancer, Ruti argues that there are some traumatic experiences that entirely change one’s symbolic coordinates. She calls these types of experiences benchmark traumas. Diagnosed with terminal cancer, Ruti boldly explores how encountering a benchmark trauma forced her to recognize the brokenness of her being. She theorizes that this recognition reveals the split in the subject. Encountering this brokenness, (...) as she calls it, at the heart of being can be completely debilitating. However, Ruti argues, there is a way to engage rather than repress this impossible reality. She theorizes that creativity is the one human expression that can grapple authentically with the split in the subject. To explore this idea, she collaborates with painter Dwight Smith. Smith’s twenty-two paintings respond to the benchmark trauma of the death of his twenty-two-year-old daughter. The twenty-two paintings are positioned throughout the manuscript and are in conversation with Ruti’s theory. Ruti is fascinated by both the paintings and Smith’s process, which is similar to her own. For Ruti and Smith, their creativity is how existential engagement takes shape. (shrink)

The Everett (many-worlds) interpretation of quantum mechanics faces a prima facie problem concerning quantum probabilities. Research in this area has been fast-paced over the last few years, following a controversial suggestion by David Deutsch that decision theory can solve the problem. This article provides a non-technical introduction to the decision-theoretic program, and a sketch of the current state of the debate.

explores the interaction between psychology and epistemology and addresses empirical questions about how we should arrive at our beliefs, and whether the processes by which we arrive at our beliefs are the ones by which we ought to arrive at our beliefs.

Nick Bostrom and others have suggested treating decision-making under moral uncertainty as analogous to parliamentary decision-making. The core suggestion of this “parliamentary approach” is that the competing moral theories function like delegates to the parliament, and that these delegates then make decisions by some combination of bargaining and voting. There seems some reason to hope that such an approach might avoid standard objections to existing approaches (for example, the “maximise expected choiceworthiness” (MEC) and “my favourite theory” approaches). However, the parliamentary (...) approach is so far extremely underspecified, making it largely indeterminate how such a model will in fact behave in the respects that those concerned with moral uncertainty care about. This paper explores one way of making it precise. We treat predicaments of moral uncertainty as analogous to bargaining situations alone (setting aside voting), and apply a version of the Nash solution that is standard in bargaining theory. The resulting model does indeed perform in many of the hoped-for ways. However, so also does a version of MEC that employs a structural approach to intertheoretic comparisons. It seems to us an open question which, regarding this version of MEC and the bargaining-theoretic approach, is superior to the other. We identify the key points on which the two differ. (shrink)

Given the deep disagreement surrounding population axiology, one should remain uncertain about which theory is best. However, this uncertainty need not leave one neutral about which acts are better or worse. We show that, as the number of lives at stake grows, the Expected Moral Value approach to axiological uncertainty systematically pushes one toward choosing the option preferred by the Total View and critical-level views, even if one’s credence in those theories is low.

We often find that beliefs we hold are in conflict with the beliefs of epistemic peers, individuals who are just as intelligent, just as well-informed, and just as scrupulous in forming their beliefs as we are. Is it permissible to maintain our beliefs in the face of such disagreement? It is argued here that continued belief in these circumstances is not epistemically permissible, and that this has striking consequences for the practice of philosophy: we cannot reasonably hold on to our (...) philosophical views. (shrink)

Much of the evidence for quantum mechanics is statistical in nature. The Everett interpretation, if it is to be a candidate for serious consideration, must be capable of doing justice to reasoning on which statistical evidence in which observed relative frequencies that closely match calculated probabilities counts as evidence in favour of a theory from which the probabilities are calculated. Since, on the Everett interpretation, all outcomes with nonzero amplitude are actualized on different branches, it is not obvious that sense (...) can be made of ascribing probabilities to outcomes of experiments, and this poses a prima facie problem for statistical inference. It is incumbent on the Everettian either to make sense of ascribing probabilities to outcomes of experiments in the Everett interpretation, or to find a substitute on which the usual statistical analysis of experimental results continues to count as evidence for quantum mechanics, and, since it is the very evidence for quantum mechanics that is at stake, this must be done in a way that does not presuppose the correctness of Everettian quantum mechanics. This requires an account of theory confirmation that applies to branching-universe theories but does not presuppose the correctness of any such theory. In this paper, we supply and defend such an account. The account has the consequence that statistical evidence can confirm a branching-universe theory such as Everettian quantum mechanics in the same way in which it can confirm a probabilistic theory. (shrink)

Prioritarianism is supposed to be a theory of the overall good that captures the common intuition of . But it is difficult to give precise content to the prioritarian claim. Over the past few decades, prioritarians have increasingly responded to this by formulating prioritarianism not in terms of an alleged primitive notion of quantity of well-being, but instead in terms of von NeumannPrimitivistTechnicalpriority to the worse offMorgenstern utility is a retrograde step.