scholarly journals Suspension, Higher-Order Evidence, and Defeat

Author(s):  
Errol Lord ◽  
Kurt Sylvan

This paper has two main goals. The first and most central goal is to develop a framework for understanding higher-order defeat. The framework rests on the idea that higher-order evidence provides direct reasons for suspending judgment which leave evidential support relations on the first order intact. Equally importantly, we also seek to explain how this sort of defeat is possible by showing how direct reasons for suspension of judgment flow from the functional profile of suspension of judgment. As a result, our framework is embedded within an account of the nature of suspension of judgment that shows how new insights about its nature lead to a different picture of its rational profile. A second and subsidiary goal of the paper is to show how our framework provides a compelling basis for more moderate positions about disagreement and epistemic akrasia. We show that the puzzles about these topics rest on more fundamental mistakes about suspension and the relationship between reasons for suspension, reasons for belief, and evidence.

2015 ◽  
Vol 5 (4) ◽  
pp. 296-314 ◽  
Author(s):  
Hamid Vahid

Epistemic akrasia refers to the possibility of forming an attitude that fails to conform to one’s best judgment. In this paper, I will be concerned with the question whether epistemic akrasia is rational and I will argue that it is not. Addressing this question, in turn, raises the question of the epistemic significance of higher-order evidence. After examining some of the views on this subject, I will present an argument to show why higher-order evidence is relevant to the epistemic status of the pertinent first-order beliefs. This helps to show why a standard argument for the rationality of epistemic akrasia does not work. Finally, I shall try to show how considerations involving Davidson’s theory of radical interpretation bear on the question of the rationality of epistemic akrasia.


2019 ◽  
pp. 35-61 ◽  
Author(s):  
Kevin Dorst

You have higher-order uncertainty iff you are uncertain of what opinions you should have. This chapter defends three claims about it. First, the higher-order evidence debate can be helpfully reframed in terms of higher-order uncertainty. The central question becomes how your first- and higher-order opinions should relate—a precise question that can be embedded within a general, tractable framework. Second, this question is nontrivial. Rational higher-order uncertainty is pervasive, and lies at the foundations of the epistemology of disagreement. Third, the answer is not obvious. The Enkratic Intuition—that your first-order opinions must “line up” with your higher-order opinions—is incorrect; epistemic akrasia can be rational. If all this is right, then it leaves us without answers—but with a clear picture of the question, and a fruitful strategy for pursuing it.


Author(s):  
Declan Smithies

Chapter 10 explores a puzzle about epistemic akrasia: if you can have misleading higher-order evidence about what your evidence supports, then your total evidence can make it rationally permissible to be epistemically akratic. Section 10.1 presents the puzzle and three options for solving it: Level Splitting, Downward Push, and Upward Push. Section 10.2 argues that we should opt for Upward Push: you cannot have misleading higher-order evidence about what your evidence is or what it supports. Sections 10.3 and 10.4 defend Upward Push against David Christensen’s objection that it licenses irrational forms of dogmatism in ideal and nonideal agents alike. Section 10.5 responds to his argument that misleading higher-order evidence generates rational dilemmas in which you’re guaranteed to violate one of the ideals of epistemic rationality. Section 10.6 concludes with some general reflections on the nature of epistemic rationality and the role of epistemic idealization.


2019 ◽  
pp. 298-316
Author(s):  
Alex Worsnip

It’s fairly uncontroversial that you can sometimes get misleading higher-order evidence about what your first-order evidence supports. What is more controversial is whether this can result in a situation where your total evidence is misleading about what your total evidence supports: that is, where your total evidence is misleading about itself. It’s hard to arbitrate on purely intuitive grounds whether any particular example of misleading higher-order evidence is an example of misleading total evidence. This chapter tries to make progress by offering a simple mathematical model that suggests that higher-order evidence will tend to bear more strongly on higher-order propositions about what one’s evidence supports than it does on the corresponding first-order propositions; and then by arguing that given this, it is plausible that there will be some cases of misleading total evidence.


2011 ◽  
Vol 2011 ◽  
pp. 1-18 ◽  
Author(s):  
Mohamed Bin Suleiman ◽  
Zarina Bibi Binti Ibrahim ◽  
Ahmad Fadly Nurullah Bin Rasedee

The current numerical technique for solving a system of higher-order ordinary differential equations (ODEs) is to reduce it to a system of first-order equations then solving it using first-order ODE methods. Here, we propose a method to solve higher-order ODEs directly. The formulae will be derived in terms of backward difference in a constant stepsize formulation. The method developed will be validated by solving some higher-order ODEs directly with constant stepsize. To simplify the evaluations of the integration coefficients, we find the relationship between various orders. The result presented confirmed our hypothesis.


Author(s):  
David Owens

In a case of practical akrasia, we freely do something even though we judge that we ought not to do it. This chapter discusses the possibility of epistemic akrasia. Epistemic akrasia is possible only if (a) a person’s (first-order) beliefs can diverge from their higher-order judgements about what it would be reasonable for them to believe, and (b) these divergent (first-order) beliefs are freely and deliberately formed. Several recent authors deny the possibility of epistemic akrasia because they doubt that (a) can be true. I argue that though (a) can indeed be true, (b) cannot. On this point, believing is contrasted with guessing.


2019 ◽  
pp. 226-245 ◽  
Author(s):  
Michael G. Titelbaum

This chapter discusses responses to the author’s “Rationality’s Fixed Point (or: In Defense of Right Reason).” Among other things, the chapter: explains how the author understands rationality; explains why akrasia is irrational; intuitively overviews the argument from the Akratic Principle to the Fixed Point Thesis; explains why you can’t avoid this argument by distinguishing the rational from the reasonable, ideal rationality from everyday rationality, or substantive from structural norms; responds to the suggestion that misleading higher-order evidence creates rational dilemmas; explains why the Fixed Point Thesis doesn’t assume objectivist or externalist notions of rationality; dismisses complaints about agents who aren’t able to “figure out” what’s rational; then responds to an objection that peer disagreement undermines doxastic justification. Finally, the chapter modifies the author’s steadfast position on peer disagreement to take into account cases in which peer disagreement rationally affects an agent’s first-order opinions without affecting higher-order ones.


2019 ◽  
pp. 130-145
Author(s):  
Brian Weatherson

This chapter discusses higher-order evidence, i.e. evidence directly about the propriety of having some first-order belief. The mainstream position on higher-order evidence is that it can rationally require changes to first-order beliefs. In particular, it is irrational to both believe something, and think that belief is improper in some or other way. The usual argument for this rests on intuitions about cases. I argue that we haven’t considered enough cases, and that there are cases where level-crossing principles give the wrong answer. In particular, the literature has ignored cases where level-crossing principles implausibly imply we should increase our confidence in target propositions. I reconsider the cases that motivated level-crossing principles, and argue that a careful version of evidentialism can explain them.


Author(s):  
Clayton Littlejohn

This chapter explores the relationship between reasons and epistemic rationality. In recent debates about rationality and evidence, internalist evidentialism is quite popular. Using this theory as our stalking horse, we examine debates about the ontology of evidence and reasons, a puzzle about rationality and evidential support relations, work on the relationship between reasons and rationality, and some underexplored issues concerning the relationship between knowledge, evidence, and normative reasons. We shall see that there are good grounds for thinking that the normative reasons that matter in epistemology are not always pieces of evidence, that there is no simple story about the relationship between believing rationally and responding correctly to the evidence or the reasons, that there are problems with formal accounts of evidential support, and that attractive views about the ontology of reasons suggest that it can be rational to believe without having a belief based on reasons.


2019 ◽  
pp. 246-264 ◽  
Author(s):  
Daniel Whiting

A widespread view is that higher-order evidence makes a difference to whether it is rational for a person to believe a proposition. This chapter considers in what way higher-order evidence might do this. More specifically, it considers whether and how higher-order evidence plays a role in determining what it is rational to believe distinct from that which first-order evidence plays. To do this, it turns to the theory of reasons, and tries to situate higher-order evidence within it. The only place for it there, distinct from that which first-order evidence already occupies, is as a practical reason, that is, as a reason for desire or action. One might take this to show either that the theory of reasons is inadequate as it stands or that higher-order evidence makes no distinctive difference to what it is rational to believe. The chapter tentatively endorses the second option.


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