Showing posts with label Velleman. Show all posts
Showing posts with label Velleman. Show all posts

Monday, 9 May 2011

Velleman on the Aim of Desire

In his paper, “The Guise of the Good”, David Velleman argues that desires aim, not at the good, but at the attainable. Velleman begins by drawing two important distinctions. Firstly, he distinguishes between cognative attitudes (i.e., attitudes in which a proposition is grasped as patterned after the world), and conative attitudes (i.e, attitudes in which a proposition is grasped as a pattern for the world to follow). Examples of cognative attitudes include beliefs, assumptions, and imaginings. Examples of conative attitudes include desires, hopes, and wishes. Secondly, he distinguishes between the direction of fit of an attitude (i.e., that in virtue of which it is a cognative or conative attitude) and the constitutive aim of an attitude (i.e., that in virtue of which it is correct or incorrect).

With the preceding pair of distinctions in place, Velleman then advances the following three-stage argument: First, he argues that the constitutive aim of belief is what distinguishes it from all other states with a cognitive direction of fit; namely, the fact that beliefs are correct just in case they are true. Second, he argues that what distinguishes desire from all other states with a conative direction of fit is not the fact that it aims after the good, since this is something it shares with all other conative states. Third, he argues that what distinguishes desire from all other conative states is the fact that desire aims at the attainable. He therefore concludes that desires aim at the attainable.

Stage 1: Velleman on Constitutive Aims
Velleman takes as his starting point the stipulation that the constitutive aim of a psychological state-type is whatever sets it apart from all other psychological state-types; to wit, what makes a psychological state-type the state-type that it is. Hence, to say that belief aims at the true, according to Velleman, is to say that the truth-aim is what distinguishes belief from all other states with a cognitive direction of fit. Velleman motivates this claim by exploiting a comparison of believing that p, on the one hand, and fantasising that p and assuming that p, on the other. Velleman notes that all three psychological states have a cognitive direction of fit; all three, according to Velleman, involve a proposition being grasped as patterned after the world. However, while believing that p is deemed correct if and only if p is true, fantasising that p and assuming that p are not deemed correct if and only if p is true. Thus, by Velleman's lights, it is the fact that a psychological state-type has the correctness conditions that it does that makes it the psychological state-type that it is.

Stage 2: Velleman's Negative Thesis
Next, Velleman argues that the good cannot be the constitutive aim of desire since desires are not the only psychological states that aim at the good. Velleman takes as his point of departure the assumption, widely held by proponents of GG theory, that desires aim at the good in virtue of their direction fit. On this view, to say that desires aim at the good just is to say that desires have a conative direction of fit. However, Velleman points out that having a conative direction of fit is something that desires have in common with all other conative attitudes, including wishes and hopes. The upshot is that all conative attitudes may be said to aim at the good. Given that the constitutitive aim of desire is what makes it the psychological state-type that it is, it follows that the good cannot be the constitutive aim of desire. We may call this Velleman’s negative thesis.

Stage 3: Velleman's Positive Thesis
Finally, Velleman argues that the constitutive aim of desire is the attainable. By this, Velleman does not mean that one can desire that p only if p is attainable. Rather, he means that one can desire that p only if one believes that p is attainable. Thus, Velleman allows that I may desire something that is in fact unattainable, if I mistakenly believe it to be attainable. For example, I can desire that I arrive in the airport at 3pm, even though it is not physically possible for me to arrive in the airport at 3pm, so long as I believe (albeit mistakenly) that it is physically possible for me to do so. Velleman observes that one can wish for something that one believes to be unattainable. For example, I can wish I were never born even though I believe that undoing my own birth is not something that is attainable. However, according to Velleman, one cannot desire something that one believes to be unattainable. Hence, I could not desire that I were never born if I believed that undoing my own birth was not attainable. According to Velleman, this distinction between desires and wishes generalises to all other conative states; only desires aim at the attainable. Thus, Velleman concludes that desires stand to the attainable as belief stands to the true. We may call this Velleman's positive thesis.

Wednesday, 30 March 2011

A (Selective) Outline of Velleman's "The Guise of the Good"

Disclaimer: The following is a (selective) outline of what I take to be the central argument of David Velleman's paper, “The Guise of the Good”. A number of Velleman's specific arguments have been omitted, not because I believe they are unimportant or uninteresting, but for the sake of brevity.


SYNOPSIS OF PAPER: Velleman argues that the Guise of the Good theory (henceforth, “GG theory”) errs by either making an evaluative term (henceforth, “the good”) part of the propositional content of the attitude motivating an intentional action (henceforth, “a desire”) or by equating the good with the direction of fit of a desire. The first strategy fails because it entails that an agent can have a desire only if she possesses the concept of the good, and the second strategy fails because it conflates the constitutive aim of an attitude with its direction of fit. Velleman concludes by advancing the positive proposal that desire aims at the attainable.


BRIEF OUTLINE OF PAPER:
I Motivating cognitivism: The Primacy of Rational Guidance (pp. 3-7)
II Sophisticated Cognitivism: The Direction-of-Fit Approach (pp. 7-9)
III The Aim of Desire: Objections to Sophisticated Cognitivism (pp. 10-19)


DETAILED OUTLINE OF PAPER:
I Motivating cognitivism: The Primacy of Rational Guidance
Summary: Velleman defines GG theory as the claim that intentional action aims at the good. GG Theory is motivated by an attempt to reconcile two seemingly incompatible stories of the origin of human action; namely, the story of motivation and the story of rational guidance. Non-cognitivism emphasizes the story of motivation at the expense of the story of rational guidance, and cognitivism emphasizes the story of rational guidance at the expense of the story of motivation. The main motivation for rejecting non-cognitivism and adopting cognitivism, according to Velleman, is a desire to preserve the commonsense story of the origin of human action.

Discussion:
(i) Story of motivation = an agent acts intentionally when her action is caused by a desire for some outcome and a belief that the action will promote it. (p. 3)

(ii) Story of rational guidance = an agent acts intentionally when the action justifying character of a proposition prompts her action via her grasp of that proposition. (p. 4)

Noncognitivism = emphasises story of motivation at the expense of the story of rational guidance.

Weakness of non-cognitivism = it is at odds with the commonsense story. “In the commonsense story, the agent is moved toward action because his reasons justify it; whereas in the noncognitivist story, his reasons justify his action in virtue of moving him toward it.” (p. 5)

Cognitivism = emphasises story of rational guidance at the expense of the story or motivation.

Weakness of cognitivism = entails that an agent can have a desire only if she has evaluative concept. “If the cognitivist seriously means to characterise desire as an attitude toward an evaluative proposition, then he implies that the capacity to desire requires the possession of evaluative concepts. Yet a young child can want things long before it has acquired the concept of their being worth wanting or desirable.” (p. 7)

Upshot: Noncognitivism is unattractive because it fails to preserve the commonsense story of motivation and cognitivism is implausible because it entails that an agent can act intentionally only if it possesses certain evaluative concepts.


II Sophisticated Cognitivism: The Direction-of-Fit Approach
Summary: Sophisticated cognitivism unpacks the claim that the attitude motivating an intentional action (henceforth, I will simply speak of a desire) aims at the good in terms of the attitude's direction-of-fit. On this view, a cognitive attitude (like belief) may be said to aim after truth because its propositional object is regarded as a factum (something that is the case); while a conative attitude (like desire) may be said to aim after the good because its propositional object is regarded as a faciendum (something that is to be made the case). The upshot is that a propositional attitude is characterised, not only by the proposition that embodies its content, but also by the attitude's direction of fit (i.e., whether it represents its propositional object as a factum or faciendum).

Discussion:
cognitive attitude = a proposition is grasped as patterned after the world (or factum).
conative attitude = a proposition is grasped as a pattern for the world to follow (or faciendum).

(i) Simple cognitivism = involves action-justifying propositions.
According to simple cognitivism, desires aim at the good in virtue of their propositional content, which include the predicate “good”. (p. 6)

(ii) Sophisticated cognitivism = involves action-justifying attitudes.
According to sophisticated cognitivism, desires aim at the good in virtue of type of attitude it is—namely, that it is a conative attitude—rather than in terms of its propositional content. (pp. 8ff)

Upshot: According to sophisticated cognitivism, desires justify or provide reasons for action, not because of their propositional content, but because of the way the propositional content of a desire is grasped; namely, as something to be brought about. (p. 9)


III The Aim of Desire: Objections to Sophisticated Cognitivism
Summary: According to Velleman, desire aims, not at the good, but at the attainable. This follows from the following three theses. First, the constitutive aim of belief is whatever distinguishes it from all other states with a cognitive direction of fit; namely, the fact that beliefs are only correct when they are true. Second, what distinguishes desire from all other states with a conative direction of fit is not the fact that it aims after the good, since this is something it shares with all other conative states. Third, what distinguishes desire from all other conative states is the fact that desire aims at the attainable. The upshot is that the central thesis of sophisticated cognitivism—namely, that desire aims at the good—is mistaken.

Discussion:
Velleman exploits an analogy from belief to argue that desires do not aim at the good. He draws a distinction between the direction of fit of belief and the aim of belief (p. 12 ff):

(i) direction of fit of belief = that in virtue of which it is a cognitive state.
(ii) aim of belief = that in virtue of which it is correct just in case it is true

The following is a rough reconstruction of Velleman's argument. (Note: "given" indicates a theoretically motivated claim, and "observed" indicates an empirically motivated claim.)

(1) Belief is a cognitive state in virtue of its direction of fit. (given)

(2) Belief does not share the same aim as other cognitive states. (observed)

(3) Aim of belief = what sets belief apart from other cognitive states. (loosely from (1) and (2))

(4) Aim of desire = what sets desire apart from other conative states. (by analogy from (3))

(5) Sophisticated cognitivism entails that desire aims at the good in virtue of its direction of fit. (given)

(6) Sophisticated cognitivism entails that all conative states have the same direction of fit. (given)

(7) Sophisticated cognitivism entails that all conative states aim at the good. (loosely from (5) and (6))

(8) Sophisticated cognitivism entails that the good is not the aim of desire. (loosely from (4) and (7))

(8) What sets desire apart from all other conative states = being directed at the attainable. (observed)

(9) Aim of desire = being directed at the attainable. (loosely from (4) and (8))

Upshot: Velleman's negative thesis is that, contra sophisticated cognitivism, the constitutive aim of desire is not the good. Velleman's positive thesis is that the constitutive aim of desire is the attainable (p. 17). Given that the constitutive aim of belief is the truth, it follows from Velleman's positive thesis that desire stands to the attainable as belief stands to the truth.