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- Michael E. Bratman (1992). Planning and the Stability of Intention. Minds and Machines 2 (1).I sketch my general model of the roles of intentions in the planning of agents like us-agents with substantial resource limitations and with important needs for coordination. I then focus on the stability of prior intentions: their rational resistance to reconsideration. I emphasize the importance of cases in which one's nonreconsideration of a prior intention is nondeliberative and is grounded in relevant habits of reconsideration. Concerning such cases I argue for a limited form of two-tier consequentialism, one that is restricted in ways that aim at blocking an analogue of Smart's concerns about rule-worship. I contrast this with the unrestricted two-tier consequentialism suggested by McClennen. I argue that my restricted approach is superior for a theory of the practical rationality of reflective, planning agents like us. But I also conjecture that an unrestricted two-tier consequentialism may be more appropriate for the AI project of specifying a high level architecture for a resource-bounded planner.
Similar books and articles
We are planning agents and we are, or so we suppose, responsible agents. How are these two distinctive aspects of our agency related? In his "Freedom and Resentment" Peter Strawson understands responsible agency in terms of "reactive attitudes" like resentment and gratitude, attitudes which are normally embedded in "ordinary inter-personal relationships." I draw on Strawson''s account to sketch an answer to my question about responsibility and planning. First, the fact that an action is plan-embedded can influence the agent''s degree of culpability for that action; for such embeddings can constitute or indicate important facts about the quality of the agent''s will. Second, general planning incapacities can to some extent exempt an agent from normal judgments of responsibility. My argument for this second claim appeals to the normal roles of planning in "ordinary inter-personal relationships.".
This paper addresses a problem concerning the rational stability of intention. When you form an intention to ϕ at some future time t, you thereby make it subjectively rational for you to follow through and ϕ at t, even if – hypothetically – you would abandon the intention were you to redeliberate at t. It is hard to understand how this is possible. Shouldn’t the perspective of your acting self be what determines what is then subjectively rational for you? I aim to solve this problem by highlighting a role for narrative in intention. I’ll argue that committing yourself to a course of action by intending to pursue it crucially involves the expectation that your acting self will be ‘swept along’ by its participation in a distinctively narrative form of self-understanding. I’ll motivate my approach by criticizing Richard Holton’s recent treatment of the stability of intention. Then I’ll extend the criticism to Michael Bratman’s treatment, though my account also borrows from his work. I’ll likewise criticize and borrow from David Velleman’s work on narrative and self-intelligibility. When the pieces fall into place, we’ll see how intending is akin to telling your future self a kind of story. My thesis is not that you address your acting self but that your acting self figures as a ‘character’ in the ‘story’ that you address to a still later self. Unlike other appeals to narrative in agency, mine will explain how as narrator you address a specifically intrapersonal audience.
Abstract I challenge the view that, in cases where time for deliberation is not an issue, instrumental rationality precludes myopic planning. I show where there is room for instrumentally rational myopic planning, and then argue that such planning is possible not only in theory, it is something human beings can and do engage in. The possibility of such planning has, however, been disregarded, and this disregard has skewed related debates concerning instrumental rationality.
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What happens to our conception of mind and rational agency when we take seriously future-directed intentions and plans and their roles as inputs into further practical reasoning? The author's initial efforts in responding to this question resulted in a series of papers that he wrote during the early 1980s. In this book, Bratman develops further some of the main themes of these essays and also explores a variety of related ideas and issues. He develops a planning theory of intention. Intentions are treated as elements of partial plans of action. These plans play basic roles in practical reasoning, roles that support the organization of our activities over time and socially. Bratman explores the impact of this approach on a wide range of issues, including the relation between intention and intentional action, and the distinction between intended and expected effects of what one intends.
The practical thought of planning agents is subject to distinctive rationality norms. In particular, there are norms of intention consistency and of means-end coherence. I discuss the normative significance of these norms and their relation to practical reasons. I seek a path between views that see these norms as, at bottom, norms of theoretical rationality, and views that see the idea that these norms have distinctive normative significance as a 'myth'. And I seek to distinguish these norms from principles about the transmission of practical reasons. In the end, my view draws on claims about what is involved in being a self-governing planning agent.
This paper defends a cognitive-motivational account of intending against recent criticism by J. Garcia, connects intending with a number of other concepts important in the theory of action — including decison, volition, and planning — and explores some principles of intention transfer construed as counterparts of epistemic principles governing closure for belief and justification. Several routes to intention formation are described; the role of intentions in planning is examined; and a holistic conception of intention formation and change is stressed. The proposed conception of intending as embodying at once a cognitive and a motivational commitment to action is thus shown to help in understanding both the explanation of action and the rationality of agents.
In my 1987 book I tried to understand intentions as, in the basic case, elements of larger and typically partial plans whose primary roles in our lives are ones of coordination and organization, both cross-temporal and social.1 I called this the planning theory of intention. Central to the planning theory is the idea that intentions – in contrast with ordinary desires -- are both embedded in characteristic regularities and are subject to distinctive rational pressures for consistency and coherence. There is, in particular, a rational demand that one’s intentions, taken together with one’s beliefs, fit together into a consistent model of one’s future. There is, further, a rational demand that one’s intentions be means-end coherent in the sense, roughly, that it not be true that one intends E, believes that E requires that one intend means M, and yet not intend M.3 And these norms of consistency and coherence are operative in a planning agent’s practical reasoning.
In this article, I first elaborate and refine the Principle of Intention Agglomeration (PIA), which was introduced by Michael Bratman as “a natural constraint on intention”. According to the PIA, the intentions of a rational agent should be agglomerative. The proposed refinement of the PIA is not only in accordance with the spirit of Bratman’s planning theory of intention as well as consistency constraints for intentions rooted in the theory, but also reveals some deep rationales of practical rationality regarding resource-limited agents. Then I defend the PIA against various objections and counterexamples, showing that the refined PIA survives attacks based on both conceptual analyses and psychological considerations.
This comment on Michael Bratman's Planning and the Stability of Intention focuses on sources of the rational stability of intentions which are not related to the presence of reflectively overrideable non-deliberative habits of (non)reconsideration. It is true that intentions have a rational resistance to reconsideration, but this stability can be understood as a by-product of the scheduling of cognitive tasks. This scheduling effect is intrinsic to all actual systems, that is, systems whose reasoning is not instantaneous or otherwise costless. Additionally, rules governing practical reasoning, including rules governing reasoning with intentions, will not uniformly be subject to overrides resulting from reflective operations. Hence there is no basis for distinguishing human reasoners from artificial reasoners by reference to an alleged human capacity to reflectivity evaluate its own reasoning operations.
Michael Bratman''s restricted two-tier approach to rationalizing the stability of intentions contrasts with an alternative view of planning, for which all of the following claims are made: (a) it shares with Bratman''s restricted two-tier approach the virtue of reducing the magnitude of Smart''s problem; (2) it, rather than the unrestricted two-tier approach, is what is argued for in McClennen (1990); (3) there does not appear to be anything in the central analysis that Bratman has provided of plans and intentions (both in his book,Intention, Plans, and Practical Reason, and in the article Planning and the Stability of Intention) that precludes his adopting this alternative approach; and (4) it is an approach that neither requires nor encourages any distinction between the standards appropriate to artificial and to human intelligence.
Discussion of Michael E. Bratman, Planning and the stability of intention
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