Title Pages University Press Scholarship Online Oxford Scholarship Online Ad Infinitum: New Essays on Epistemological Infinitism John Turri and Peter D. Klein Print publication date: 2014 Print ISBN-13: 9780199609598 Published to Oxford Scholarship Online: August 2014 DOI: 10.1093/acprof:oso/9780199609598.001.0001 Title Pages Ad Infinitum Ad Infinitum (p.iv) Great Clarendon Street, Oxford, OX2 6DP, United Kingdom Oxford University Press is a department of the University of Oxford. It furthers the University's objective of excellence in research, scholarship, and education by publishing worldwide. Oxford is a registered trade mark of Oxford University Press in the UK and in certain other countries © The several contributors 2014 Page 1 of 3 Title Pages The moral rights of the authors have been asserted First Edition published in 2014 Impression: 1 All rights reserved. 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Oxford disclaims any responsibility for the materials contained in any third party website referenced in this work. Page 2 of 3 Contents Go to page: Front Matter Title Pages Preface List of Contributors Introduction John Turri, and Peter D. Klein 1 Knowing Better, Cognitive Command, and Epistemic Infinitism Scott F. Aikin 2 Klein and the Regress Argument Michael Bergmann 3 Reasons Require Reasons Andrew D. Cling 4 Infinitism Richard Fumerton 5 Virtue and Vice Among the Infinite Michael Huemer 6 Reasons, Reasoning, and Knowledge: A Proposed Rapprochement between Infinitism and Foundationalism1 Peter D. Klein 7 Infinitist Justification and Proper Basing Jonathan L. Kvanvig 8 Klein’s Case for Infinitism Ram Neta 9 Can an Infinite Regress Justify Everything? Jeanne Peijnenburg and David Atkinson 10 Can Perception Halt the Regress of Justifications? Michael Rescorla 11 Infinitism Ernest Sosa 12 Creative Reasoning John Turri 13 Avoiding the Regress Michael Williams 14 First Person and Third Person Reasons and the Regress Problem Linda Zagzebski End Matter Index Preface University Press Scholarship Online Oxford Scholarship Online Ad Infinitum: New Essays on Epistemological Infinitism John Turri and Peter D. Klein Print publication date: 2014 Print ISBN-13: 9780199609598 Published to Oxford Scholarship Online: August 2014 DOI: 10.1093/acprof:oso/9780199609598.001.0001 (p.v) Preface Infinitism is a family of views in epistemology about the structure of knowledge and epistemic justification. It contrasts naturally with coherentism and foundationalism. All three views agree that knowledge or justification requires an appropriately structured chain of reasons. What form may such a chain take? Foundationalists opt for non- repeating finite chains. Coherentists (at least linear coherentists) opt for repeating finite chains. Infinitists opt for non-repeating infinite chains. Appreciable interest in infinitism as a genuine competitor to coherentism and foundationalism has developed only recently. This volume comprises fourteen papers at the cutting edge of research on infinitism. We reckon that this volume is the most sustained, careful, and serious treatment of infinitism ever. It covers topics in the epistemology, metaphysics, and ethics of regresses and reasons. Our hope is that the volume will promote greater understanding of infinitism and inspire further excellent work on this rewarding and, at times, enigmatic topic. In addition to the fourteen papers, we also include an introduction. The introduction provides an overview of infinitism in epistemology, in three parts. First we introduce infinitism by explaining its intuitive motivations and the context they arise in. Next we discuss the history of infinitism, which is mostly one of neglect, punctuated by brief moments of hostile dismissal. Then we survey contemporary arguments for and against Page 1 of 3 Preface infinitism. The introduction provides a robust frame of reference for understanding and evaluating the papers that follow. The introduction does not summarize the papers. Each chapter includes an abstract of its contents and we don’t presume that we can do any better than our excellent team of contributors has done in summarizing their own work. But, in closing this Preface, it might be helpful for us to provide a one-sentence synopsis of each chapter. 1. Aikin: Infinitism is an important part of understanding comparative and ideal epistemic assessments. 2. Bergmann: Leading versions of infinitism are actually disguised versions of inferior forms of foundationalism, and standard forms of foundationalism are superior. 3. Cling: Infinitism is correct about a certain form of epistemic responsibility, but we should be skeptical that we’re capable of responsibility in that sense. 4. Fumerton: Infinitism is correct about dialectically defensible belief but incorrect about justified belief. (p.vi) 5. Huemer: A refutation of three common views about when an infinite series is impossible, along with a new account of when it is impossible. 6. Klein: A rapprochement between foundationalism and infinitism is desirable and possible. 7. Kvanvig: Infinitist accounts of epistemic justification face serious problems. 8. Neta: Standard objections to infinitism fail, but infinitism faces a deeper, previously unrecognized problem. 9. Peijnenburg and Atkinson: An infinite regress of probabilistic justifications overcomes familiar problems facing an infinite regress of deductive justifications. 10. Rescorla: Dogmatism is better than infinitism as a theory of perceptual justification. 11. Sosa: The most plausible form of infinitism (about one epistemic status) is compatible with the most plausible form of foundationalism (about another epistemic status). 12. Turri: One main objection to infinitism is that it implies that reasoning can create justification, but this objection fails because reasoning obviously can create justification. 13. Williams: Infinitism is primarily motivated as the best response to the regress problem’s skeptical potential, but this motivation is deeply flawed. 14. Zagzebski: The structure of theoretical reasons is infinite, and the ultimate solution for this is neither infinitism nor foundationalism, but rather an epistemology of self-trust. Page 2 of 3 List of Contributors University Press Scholarship Online Oxford Scholarship Online Ad Infinitum: New Essays on Epistemological Infinitism John Turri and Peter D. Klein Print publication date: 2014 Print ISBN-13: 9780199609598 Published to Oxford Scholarship Online: August 2014 DOI: 10.1093/acprof:oso/9780199609598.001.0001 (p.viii) List of Contributors SCOTT F. AIKIN, Vanderbilt University DAVID ATKINSON, University of Groningen MICHAEL BERGMANN, Purdue University ANDREW D. CLING, University of Alabama, Huntsville RICHARD FUMERTON, University of Iowa MICHAEL HUEMER, University of Colorado PETER D. KLEIN, Rutgers University JONATHAN L. KVANVIG, Baylor University RAM NETA, University of North Carolina, Chapel Hill Page 1 of 2 List of Contributors JEANNE PEIJNENBURG, University of Groningen MICHAEL RESCORLA, University of California, Santa Barbara ERNEST SOSA, Rutgers University JOHN TURRI, University of Waterloo MICHAEL WILLIAMS, Johns Hopkins University LINDA ZAGZEBSKI, University of Oklahoma Page 2 of 2 Introduction University Press Scholarship Online Oxford Scholarship Online Ad Infinitum: New Essays on Epistemological Infinitism John Turri and Peter D. Klein Print publication date: 2014 Print ISBN-13: 9780199609598 Published to Oxford Scholarship Online: August 2014 DOI: 10.1093/acprof:oso/9780199609598.001.0001 Introduction John Turri Peter D. Klein We often provide reasons for the things we believe in order to justify holding the beliefs. But what about the reasons? Do we need reasons for holding those reasons? And if so, do we need reasons for holding those reasons that were offered as reasons for our beliefs? We’re left to wonder: Does this regress ever end? Infinitism is designed to answer that question. Given that one of the goals of reasoning is to enhance the justification of a belief, Q, infinitism holds that there are two necessary (but not jointly sufficient) conditions for a reason in a chain to be capable of enhancing the justification of Q: (1) No reason can be Q itself, or equivalent to a conjunction containing Q as a conjunct. That is, circular reasoning is excluded. (2) No reason is sufficiently justified in the absence of a further reason. That is, there are no foundational reasons. Page 1 of 19 Introduction If both (1) and (2) are true, then the chain of reasons for any belief is potentially unlimited. The reason for accepting (1), and thereby rejecting circular reasoning as probative, is that reasoning ought to be able to improve the justificatory status of a belief. But if the propositional content of a belief is offered as a reason for holding the belief, then no additional justification could arise. Put more bluntly, circular reasoning begs the question by positing the very propositional content of the belief whose justificatory status the reasoning is designed to enhance. Condition (1) is generally accepted, although some coherentists seem to condone the sort of circular reasoning that it proscribes (e.g. Lehrer 1997). However, these coherentists might not actually be denying (1). Rather, they might instead be claiming that it is epistemically permissible to offer a deliverance of a cognitive faculty as a reason for believing that the faculty produces justified beliefs. On this alternative reading, these coherentists don’t deny (1), because (1) concerns the structure, not the source, of probative reasons. For example, suppose you employ beliefs produced by perception as reasons for believing that perception is reliable. This need not involve employing the proposition “perception is reliable” as one of the reasons. (p.2) Condition (2) is much more controversial. Indeed, denying (2) is a component of the dominant view in epistemology: foundationalism. Many foundationalists claim that there are beliefs, so-called “basic beliefs” or “foundational beliefs,” which do not require further reasons in order to function effectively as reasons for “non-basic” or “non- foundational” beliefs. Basic beliefs are taken to be sufficiently justified to serve as, at least, prima facie reasons for further beliefs in virtue of possessing some property that doesn’t arise from, or depend on, being supported by further reasons. For example, the relevant foundationalist property could be that the belief merely reports the contents of sensations or memories; or it could be that the belief is produced by a reliable cognitive faculty. The general foundationalist picture of epistemic justification is that foundational beliefs are justified to such an extent that they can be used as reasons for further beliefs, and that no reasons for the foundational beliefs are needed in order for the foundational beliefs to be justified. Infinitists accept (2) and so deny that there are foundational beliefs of the sort that foundationalists champion. The motivation for accepting (2) is the specter of arbitrariness. Infinitists, of course, grant that in fact every actually cited chain of reasons ends; but infinitists deny that there is any reason which is immune to further legitimate challenge. And once a reason is challenged, then on pain of arbitrariness, a further reason must be produced in order for the challenged reason to serve as a good reason for a belief. In addition to denying the existence of so-called basic beliefs, infinitism takes reasoning to be a process that generates an important type of justification—call it “reason-enhanced justification.” In opposition to foundationalism, reasoning is not depicted as merely a tool for transferring justification from the reasons to the beliefs. Instead, a belief’s justification is enhanced when sufficiently good reasons are offered on its behalf. Such enhancement Page 2 of 19