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Robert Hilary Kane
Robert Kane is the acknowledged dean of the libertarian philosophers writing actively on the free will problem. Before Kane, in the late twentieth century, Anglo-American philosophers had largely dismissed free will as a "pseudo-problem." Although, like the others, Kane does not find any libertarian position "intelligible," he developed the view that even if most of our actions are determined entirely by our character, these "self-formed actions" can be free if we at times in the past freely created our own character (and if we remain free to change it). This was Aristotle's view and agrees with Buddhist ideas of Karma.
In addition to his work to find some pathway through the "free will labyrinth" to an intelligible account of freedom, Kane has assembled in his massive 2002 sourcebook The Oxford Handbook of Free Will perhaps the best survey of modern positions on free will, from theology and fatalism to metaphysical libertarian perspectives.
The Handbook has contributions from over two dozen contemporary philosophers with strong ideas about free will. Sadly most continue to be wordy jargon-laden debates and attempts to logically refute one position or another. They reflect the fact that Peter Strawson changed the subject of the discussions from free will to moral responsibility and Harry Frankfurt changed the debate from free will to the existence of alternative possibilities.
Many of the writers tend to conflate free will and moral responsibility. They describe free will as the "control condition" of moral responsibility. This is a conceptual error. Free will is indeed a prerequisite for responsibility. But whether an action is moral is a question for ethicists, not for psychologists and neuroscientists who want to know the nature of the mind and its capacity for free actions.
That there is little new and that it is dismissive of freedom as unintelligible, makes the Oxford Handbook an accurate reflection of the current state of the free will problem. Kane insightfully remarks "One may legitimately wonder why worries about determinism persist at all in the twenty-first century, when the physical sciences - once the stronghold of determinist thinking - seem to have turned away from determinism."
In his 1985 book Free Will and Values, aware of earlier proposals by Eccles, Popper, and Dennett, but working independently, Kane proposed an ambitious amplifier model for a quantum randomizer in the brain - a spinning wheel of fortune with probability bubbles corresponding to alternative possibilities, in the massive switch amplifier (MSA) tradition of Compton and Gomes.
Kane's work is squarely in the tradition of several other brain mechanisms proposed to underlie freedom of the will.
Kane says (Free Will and Values, p.169): What I would like to do then, is to show how an MSA [massive switch amplifier] model, using Eccles' notion of critically poised neurons as a working hypothesis, might be adapted to the theory of practical, moral and prudential decision making. Keeping these points in mind, let us now suppose that there are neurons in the brain "critically poised" in Eccles' sense, whose probability of firing within a small interval of time is .5. (We shall tamper with this simplifying assumption in a moment.) For every n such neurons, there are 2n possible ordered combinations of firings and non-firings, which may be represented by sequences, such as (101... ), (01101... ), where the "1" 's indicate firings, the "0" 's non-firings, and the dots indicate that the sequences are continued with "0" 's up to n figures. A reasonably small number of such neurons, say a dozen, would yield ordered combinations, in the thousands, enough for the purposes of the theory. As indicated in 8.4, the exact number of possible alternatives or partitionings does not matter so long as it is large; it would likely depend on the exigencies of neurological programming rather than the demands of the theory. For practical choice, these ordered combinations of firings and non-firings of critically poised neurons would correspond to places on a spinning wheel, most of which would give rise to chance selected considerations, opening doors to consciousness of possibly relevant memories, triggering associations of ideas and/or images, focussing attention in various ways, etc. Some combinations of firings and non-firings might draw a blank. But the wheel would keep spinning until it hit something worth considering, so long as the practical reasoner or creative thinker were in a receptive, yet reflective, state of mind. Then the relevance of the consideration to deliberation would have to be assessed and the consideration either accepted or rejected.Kane introduces a probability bubble. Kane's model combines free will and values. Kane claimed his free choice is moral and made in accord with Kant's concept of duty versus one's self-interest or desires. This is the ethical fallacy. Freedom is merely a prerequisite for responsibility. And responsibility is a prerequisite for moral responsibility. Kane even relates equiprobability to a basis for human equality. "the succession of random selections among equiprobable alternatives is meant to be a continuing reminder (a mental or neurological representation) of the fact that the reason sets of other persons are to be treated equally."Kane's model is also "restrictive," a term coined by John Martin Fischer to describe Peter van Inwagen's claim that only a tiny fraction of our decisions and actions could be free actions. For van Inwagen, it is those which have closely balanced alternatives (the ancient problem of the liberty of indifference. For Kane, it is those rare and difficult decisions that are deeply moral. They are those moments in which are character is formed. Later decisions made consistent with our character and values can then be traced back to these "self-forming actions." This provides us with what Kane calls ultimate responsibility or UR. The first step in this rethinking is to note that indeterminism does not have to be involved in all acts done "of our own free wills" for which we are ultimately responsible. Not all acts done of our own free wills have to be undetermined, only those acts by which we made ourselves into the kinds of persons we are—namely, the "will-setting" or "self-forming actions" (SFAs) that are required for ultimate responsibility. Now I believe that these undetermined self-forming actions, or SFAs, occur at those difficult times of life when we are torn between competing visions of what we should do or become. Perhaps we are torn between doing the moral thing or acting from ambition, or between powerful present desires and long-term goals; or we may be faced with difficult tasks for which we have aversions. In all such cases of difficult self-forming choices in our lives, we are faced with competing motivations and have to make an effort to overcome the temptation to do something else we also strongly want. There is tension and uncertainty in our minds about what to do at such times, let us suppose, that is reflected in appropriate regions of our brains by movement away from thermodynamic equilibrium—in short, a kind of "stirring up of chaos" in the brain that makes it sensitive to micro-indeterminacies at the neuronal level. The uncertainty and inner tension we feel at such soul-searching moments of self-formation would thus be reflected in the indeterminacy of our neural processes themselves. What we experience internally as uncertainty about what to do on such occasions would correspond physically to the opening of a window of opportunity that temporarily screens off complete determination by influences of the past.Kane is not satisfied with his solution. He explains that the main reason for failure is "locating the master switch and the mechanism of amplification...We do not know if something similar goes on in the brains of cortically developed creatures like ourselves, but I suspect it must if libertarian theories are to succeed." (p.168)Kane admits his basic failure is his location of indeterminism in the decision process itself. This makes chance the direct cause of action. But Kane claims that the major criticism of all indeterminist libertarian models is explaining the power to choose or do otherwise in "exactly the same conditions," something he calls "dual rational self-control." Given that A was the rational choice, how can one defend doing B under exactly the same circumstances?" (p.59) Kane is concerned that such a "dual power" is arbitrary, capricious, and irrational. Apart from the fact that information-rich systems with a history are never in the exact same conditions, and ignoring the fact that random alternative possibilities are unlikely to repeat, an adequately determined will would very likely make the same choice, for the same reasons, from the same set of alternative possibilities. But it might on the other hand exercise its irrational prerogative! We humans are unpredictable, which makes us occasionally capricious and arbitrary. So why the problem? In his 1995 book The Significance of Free Will Kane again invokes quantum events in the brain at the moment of decision. : We now turn to the second part of an answer to the question of how prior reasons or motives can explain the effort to resist temptation without also explaining the choice that terminates the effort. We must now look at this "effort of will" (to resist moral of prudential temptation) that intervenes between prior reasons or motives, on the one hand, and the resulting choice, on the other.Kane's mistake here is the same as Arthur Stanley Eddington's error in 1928 - making an analogy between human freedom and "free" electrons. He then adds chaos to amplify the microscopic quantum indeterminacy up to the macroscopic neruons.T24 (on FW): Let its suppose that the effort of will (to resist temptation) in moral and prudential choice situations of T22 and T23 is (an) indeterminate (event or process), thereby making the choice that terminates it undetermined. But this quantum analogy is merely that — an analogy. Our efforts of will most likely correspond to complex processes in our brains that are macro processes involving many neuron firings and connections. Since we know that the effects of quantum level fluctuations are usually negligible at the macro level, how can these efforts be indeterminate? One way to begin thinking about this issue is to imagine that the neural processes occurring when the efforts are being made are chaotic processes, in the sense of what is nowadays called "chaos theory." In chaotic systems, very minute changes in initial conditions grow exponentially into large differences in final outcome, a phenomenon called "sensitivity to initial conditions." The ubiquity of chaotic systems in nature is now widely recognized, and there is growing interest in the chaotic behavior of the brain at many levels, from the transmission of impulses along individual nerve fibers, to the functioning of neural networks, to general patterns of brain waves. But chaotic behavior, though unpredictable, is not necessarily indeterministic. In fact, chaos theory has shown that one can have determinism without predictability. Yet chaos theory may nonetheless be significant for discussions of human freedom, if quantum indeterminacy is also brought into the picture.Kane describes the tension during "torn" decisions as stirring up deterministic chaos. He makes the deterministic chaos sensitive to quantum indeterminacy at the neuronal level (in a way similar to John Eccles's ideas). In 2005, Kane wrote perhaps the most significant analysis of a two-stage solution like our Cogito mind model and the suggestions of William James, Henri Poincaré, Arthur Holly Compton, A.O. Gomes, Karl Popper, Henry Margenau, Daniel Dennett, and Alfred Mele.T25 (on FW): Imagine that the indeterminate efforts of will of T24 are complex chaotic processes in the brain, involving neural networks that are globally sensitive to quantum indeterminacies at the neuronal level. Persons experience these complex processes phenomenologically as "efforts of will" they are making to resist temptation in moral and prudential situations. The efforts are provoked by the competing motives and conflicts within the wills of the persons described in T22 and T23. These conflicts create tensions that are reflected in appropriate regions of the brain by movement further from thermodynamic equilibrium, which increases the sensitivity to micro indeterminacies at tin neuronal level and magnifies the indeterminacies throughout the complex macro process which, taken as a whole, is the agent's effort of will. T26 (on FW): In effect, conflicts of will of the kinds described in T22 and 23 stir up chaos in the brain and make the agents' thought processes more sensitive to undetermined influences. The result is that, in soul-searching moments moral and prudential struggle, when agents are torn between conflicting visions of what they should become (that is, on the occasions of self-forming willings, or SFWs), the outcomes are influenced by, but not determined by, past motives and character. The uncertainty and inner tension that agents feel at such ments are reflected in the indeterminacy Of their neural processes. The final libertarian theory I want to consider in this chapter takes a very different approach to explaining libertarian free choices. This view rejects both simple indeterminism and agent-causation. Instead it focuses on the process of deliberation. When we deliberate, for example, about where to vacation or which law firm to join, many different thoughts, images, feelings, memories, imagined scenarios, and other considerations pass through our minds. Deliberation can be quite a complex process. When Mike thinks about Hawaii, he pictures himself surfing, walking on sunny beaches, eating in his favorite Hawaiian restaurants; and these various thoughts incline him to choose Hawaii. But he also thinks about skiing, sitting by a fireplace after a long day on the slopes, and visiting with friends he knows in Colorado; and he leans toward Colorado. Back and forth he goes, until after a period of time considerations on one side outweigh the others and he finally chooses one option. (Unless, of course he is one of those indecisive types who finds it hard to make up his mind.)It is unfortunate that Kane did not accept Dennett's ideas for "giving libertarians what they want." He might have reconciled many libertarians and compatibilists. Instead, Kane wants something more - indeterminism in the decision itself - so that our actions are not determined by our prior deliberations and alternative possibilities, however much these are our own creations. Yet, as Dennett and Mele also admit, a causal indeterminist view of this deliberative kind does not give us everything libertarians have wanted from free will. For Mike does not have complete control over what chance images and other thoughts enter his mind or influence his deliberation. They simply come as they please. Mike does have some control after the chance considerations have occurred.Kane seems to want his freedom both ways. He wants the agent to "control which of the chance events occur" and he also wants chance to be involved at the decision stage to prevent its being "determined." Kane describes the need to have what he calls "dual (or plural) rational control" over our actions. When we wonder about whether agents have freedom of will (rather than merely freedom of action), what interests us is not merely whether they could have done otherwise, even if the doing otherwise is undetermined, but whether they could have done otherwise voluntarily (or willingly), intentionally, and rationally. Or, more generally, we are interested in whether they could have acted in more than one way voluntarily, intentionally, and rationally, rather than only in one way voluntarily, and so on, and in other ways merely by accident or mistake, unintentionally or irrationally. (p. 128)Kane does notice that our thoughts "come to us" and that control, if we have it, insures that our actions "come from us." Our willed actions "depend on us," as Aristotle required. Kane has an attractive version of the standard argument against free will. He describes the usual determinism and randomness objections (the two horns of the Libertarian Dilemma) as the ascent and descent of what he calls "Incompatibilism Mountain." (A Contemporary Introduction to Free Will, p.34)
The ascent problem is to show free will is incompatible with determinism. The descent problem is to show that free will is compatible with indeterminism. In earlier works Kane described ascent as "the compatibility question" and descent as "the intelligibility problem."
This is exactly what we do in our two-stage model, in a critical analysis of the standard argument, and in our requirements for free will.
Free will is incompatible with strict causal determinism, but it actually requires an adequate determinism for moral responsibility.
And free will is compatible with an indeterminism that generates alternative possibilities without making chance the direct cause of actions.
In a recent work (Four Views on Free Will, 2007), Kane defends Libertarianism and
again suggests that his occasional self-forming actions might involve a tension and uncertainty in our minds that stirs up a "chaos" which is sensitive to micro-indeterminacies at the neuronal level.
All free acts do not have to be undetermined on the libertarian view, but only those acts by which we made ourselves into the kinds of persons we are, namely the "will-setting" or "self-forming actions" (SFAs) that are required for ultimate responsibility. (Four Views on Free Will, p.26) Now I believe these undetermined self-forming actions or SFAs occur at those difficult times of life when we are torn between competing visions of what we should do or become. Perhaps we are torn between doing the moral thing or acting from ambition, or between powerful present desires and long-term goals, or we are faced with difficult tasks for which we have aversions.Kane says the indeterminism arising from a tension-creating conflict in the will "would be reflected in appropriate regions of the brain by movement away from thermodynamic equilibrium. The result would be a stirring up of chaos in the neural networks involved. Chaos in physical systems is a phenomenon in which very small changes in initial conditions are magnified so that they lead to large and unpredictable changes in the subsequent behavior of a system. (p.27) "Now determinists are quick to point out that chaos, or chaotic behavior, in physical systems, though unpredictable, is usually deterministic and does not itself imply genuine indeterminism in nature. But some scientists have suggested that a combination of chaos and quantum physics might provide the genuine indeterminism one needs. If the processing of the brain does "make chaos in order to make sense of the world" (as one recent research paper puts it), then the resulting chaos might magnify quantum indeterminacies in the firings of individual neurons so that they would have large-scale indeterministic effects on the activity of neural networks in the brain as a whole. If chaotic behavior were thus enhanced in these neural networks by tension-creating conflict in the will, the result would be some significant indeterminism in the cognitive processing of each of the competing neural networks." (p.28)Kane insightfully suggests that information theory may help understanding the problem of will. He proposes that the role of indeterminism is as an ingredient in the teleological process of will. But rather than making it the generator of possibilities and a creative force, Kane considers it a hindrance or obstacle to the attainment of the goal which raises the "level of effort." For Kane, this is actually beneficial because "noise or static" in information transmission might garble messages and thus raise the level of effort needed for a moral decision. It is odd that he does not consider the random noise as a generator of alternative possibilities in a two-stage model For Teachers
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