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Is Everything Relative?

A Debate on theUnity of Knowledge

Paul Gross's Address on Consilience

et me deal first with the issue of ulterior motives. One really needs to know why Wilson, given the richness of the honors that have been showered upon him in a long and fruitful life, wants to stick his neck out by doing this sort of thing regularly. I don't know the answer, but lots of other people think they do. For example, in the current New York Review of Books, Steve Jones lets slip his notion of what Wilson's motives are--political--obviously. He says: "When it comes to evolution, Wilson is a real crusader. He sees it as a seamless transition from the primeval slime to the Clinton administration, or one suspects from his last chapter to the Gingrich government that ought in any reasonable universe to succeed it." Now it is hard to tell here whether it's Steve Jones who thinks a Gingrich government should succeed the Clinton administration, or Wilson whom Jones is crediting with that thought. But no matter it is a sort of typical statement for the New York Review. It produces a frisson of political cultural recognition. The chapter Jones refers to is simply Wilson arguing that present threats to the Earth's ecosystems, hence ultimately to humanity, will be mitigated only when there is enough consilient knowledge among the planetary sciences, the biology of belief, the social policy disciplines and ethics, and enough knowers thereof to act on it. One needn't share Wilson's passion of environmentalism to agree on the value of such knowledge if it is available or if such knowers exist. My impression is that Wilson has politics like the rest of us, but certainly compared with most writers on human-social behavior, his arguments are uniquely fair-minded and none partisan (which hasn't stopped his accusers nor is it likely to).

But I want to summarize in the minutes I have what the serious or punitively serious quarrels with Wilson's thesis are. The current organization of the intellectual disciplines is not inevitable. It is a product of modern history, of the Enlightenment, of the forms of opposition to it, and that disposition, or fragmentation, as Wilson sees it, of the disciplines has a good side--it has contributed to the growth of knowledge--but a bad side in the sense that it stands in the way of explanatory interactions and collaborations. This is isn't a matter of mere fashionable inter-disciplinary. The issue is the extent to which phenomena at higher levels of complexity can and should be illuminated by knowledge of systems at lower levels. In the natural sciences, that kind of illumination has in the last 100 years catalyzed an explosion of knowledge about the physical world. Wilson is simply arguing that it is time for this same sort of explanatory interaction to be sought actively among the following: biology, especially the biologically based cognitive sciences, the social sciences, and the humanities. In particular it is time, I think he is arguing, for the human cognitive repertoire to be examined deeply in light of organic evolution which created it.

   So now lets see what sorts of claims can be urged and are being urged against this thesis moving from the ridiculous to at least the potentially sublime. One, evolution never happened; therefore it could not create human cognition. I dismiss it. You leave aside technical arguments about the mechanisms of evolution and the brute facts of it, and the creation of human cognition, in its course, are as firm a part of science as the role of gravity in the motions of the heavenly bodies. If you don't know that, you should read an honest elementary textbook on the subject of evolution. Finding an honest one is not so easy, because there are thousands of dishonest ones. But they are tracts and not textbooks. I should add that if anyone finds good evidence that evolution as biology now describes it didn't happen, he will be a world hero not just of theists but of science too.

Second argument: well, evolution happened more or less as biology says, but doesn't work the way biology thinks it does, through a materialist blind algorithmic process of natural selection. It works because the whole sha-bang was designed. Maybe also because the designer cares and intervenes regularly, now as in the past shaping the outcomes. Since there is intelligent design, human cognitive performances depend upon intelligence, something outside of the brute interaction over time of genes and environments. It may be that serious philosophers haven't thought this way for a long time. But lots of other people do. Lots of other people do think that mind is separate from body. I don't propose to use my few minutes to give a history of this ancient class of arguments. Suffice it to say that they go back before William Paley, before Descartes, before Thomas Aquinas, but as well straightforward to today in applauded promotions by, say, Phillip Johnson, Michael Behe, and others among the neo-creationists. But their arguments, like all preceding versions of the argument from design, are false. Please don't take my word for it, or even that of a normally careful scholar like Robert Bork, who believes the argument from design. Just point your web browser to "Beahy's empty box" for full text literature that dissects the swindles of experiment of intelligent design theory. So that one is dismissable too. I am sorry, it would have been nice to get everybody into the tent--religion and science, God, Wilson, Richard Dawkins, Ecstasy, and Darwin--poor old Darwin--but it doesn't work. There is nothing about the design of living things that isn't explained under any reasonable epistemology better by modern evolutionary biology, which Darwin would not recognize anyway, than by intelligent design. (Wait a bit for the end of these remarks. I am going to suggest that only Wilson's kind of proposal, rather than those of the creationist, rather than quantum mysticism, rather than therapeutic touch and angels, rather than social utopianism, has a real chance of realizing the noble desideratum, which is to get the best of religion and of science back together in the same thing.)

Third argument, but wait, maybe it isn't a noble desiderata maybe it's either a rotten idea, or impossible in principle what Wilson is proposing, or both. Maybe the unvarnished materialism of evolutionary psychology is just that science or advocacy of infanticide, as a normally circumspect Andrew Ferguson contends in his astonishingly snide account in the Weekly Standard of Stephen Pinkers' recent book, How the Mind Works. But let's stick with the claim that as a goal or a hope, unifying religious, aesthetic, or humanistic cognitive performances with scientific knowledge is vain; that to accomplish this, if it were possible, would be not an achievement but a loss. And among those who have argued this is my distinguished colleague Richard Rorty, who has stated his position very clearly that "although advances in biology may someday have greater relevance to the behavioral sciences, conceivably even to the policy sciences in the humanities than they do now. We should nevertheless not get on the bandwagon Wilson is trying to set in motion." Why not? Well, because for one thing, the disciplines are not fragmented, Rorty says. Their separateness is a good thing, not a bad thing. There are just different ways of doing things. The diversity is the great plus. To make the method and the language of science the core or the determining language of all knowledge would be a great loss, an impoverishment, because there are not barriers between the disciplines, only different folks doing different strokes. People like Wilson have shown neither that their hopes of unification are feasible, nor what sort of world would result from unification just in case it were feasible. And from the point of view of variety, or perhaps freedom too, there would be less of a world under Wilson's theme than the one we have. And so Rorty says in short: "I have no doubt that this hypotheses is true." (And he is referring to Wilson's hypothesis that every mental process has a physical basis and is consistent with biology.) "I have no doubt that this hypothesis is true, but it simply does not follow that knowledge or culture should become more unified than it is. That is like inferring from the fact that every workable piece of software has a hardware realization to the conclusion that we should aim for one big unified program." Well I hope we are going to talk about one big unified program in the discussion, but I must confess that this is a strong argument, as Rorty's arguments usually are. Passing for a moment on the computer analogy, he is asking for resistance to imperialism. Who could argue with that--to resist the imposition of scientific method on quite different forms of life and ways of knowing. They are concerned with other matters than just representing physical reality, if there is such a thing. But Rorty among others applauds the discoveries of Thomas Kuhn, that supposedly put an end to logical positivism by showing that there is no such thing as scientific method--no one style and language to be imposed on anybody. (Anyway, Kuhn showed no such thing. He showed that in the few cases he chose, drawn from physics, personal and social factors play a larger part in theory choice than had been assumed in mainline philosophy of science. And the rules Kuhn proposed for theory choice don't apply to most science as has been amply demonstrated since the structure of scientific revolution, least of all to evolutionary biology.) So the attempt to conciliate evolutionary psychology with the humanities would not impose a privileged language on the latter, delegitimating the native tongue. Nor would the latter give way to the former, anymore than embryology, my own field of research, gave way to molecular genetics, with which it had had nothing to do until the 1960s, when people in both disciplines began to work toward consilience. Both fields in fact were quickly and splendidly enriched, and the riches then spread upward to the budding discipline of neurobiology and downward to hard-nosed biochemistry. So in short, enrichment of formerly separate disciplines via conscious work toward consilience has caused no visible loss of diversity or substance or style, has done no colonizing in the cases that at least I know about. Maybe it wouldn't be so between biological cognitive science and aesthetics or ethics, but we don't know that.

 The fourth big argument of five is sneering at evolutionary epistemology. The Cambridge Dictionary of Philosophy has a short but thoughtful entry on evolutionary epistemology of which Wilson's new book is an example, although its very long on evolution and very short on epistemology. In fact, the dictionary antedates consilience by a couple of years, but it does name as adherents, more or less, in the effort toward consilience some philosophers like W.V. Kwan. But the dictionary goes on to report: "Critiques of this position, evolutionary epistemology, for example Phillip Kitcher, usually strike at the soft scientific underbelly. They argue that the belief that the mind is constructed according to various innate adaptive channels is without warrant. It is but one more manifestation of today's Darwinians illicitly seeking adaptation everywhere. It is better and more reasonable to think knowledge is rooted in culture." And that really does encapsulate the argument, but the dictionary article goes on to excoriate this position of Kitcher and the critiques. Kitcher has, moreover since this early rejection of sociobiology as vaulting ambition, softened his stand very considerably, if not quite reversed it. I suspect that the timing was taking too seriously the critiques of pan-adaptationists, first offered by Richard Lewontin and Stephen Jay Gould, and then by others. But over time these critiques have failed to show substance, indeed they too seem to be empty as Daniel Dennett goes to some pain to demonstrate in Darwin's dangerous idea.
 Let me thatch on the last one now. Anyway, the last genre of anti-Wilsonism, I have brought forth here. This one comes close to being the most serious. I'll state it this way. Okay, it's fair enough to assume as a working hypothesis that characteristic human cognitive performances like ethical norms arose biologically and became fixed because they conferred selective advantage; that moral codes, for example (and here I am quoting from a manuscript in press of a colleague Susan Haack), "are to be judged by their conduciveness to human flourishing." But in fact moral codes vary enormously from one place in the world to the next. There are maybe some universals or near universals, but more commonly there are differences in moral codes and in ethical norms. Then it must be the case that the common biological and genetic contribution to the fixation of moral beliefs and behaviors is very small. Or, if large, the contribution is deeply obscure and will be impossible to dredge up out of a history that is unwritten and perhaps unrepresented even for archaeologists. Now to me, this argument in its broad form, and to some extent Rorty's argument, as well, have merit. What it says is not that the bandwagon he referred to is a danger, that it might lead the world to a world worse than the one we have, but rather that it is unlikely to go anywhere. It is a difficult argument to upset. To some of us the achievements to date of sociobiology are already exhilarating and prognostic of enormous success. And 'some of us' means, not just me and a few of my friends, but 15 or 20 very distinguished cognitive scientists all the way from the biological end to the humanities end. But to others, some of them as well qualified in the relative science, the achievements to date are not much, consisting more of plausibilities than of proofs. This latter judgment I see as profoundly wrong, but I cannot prove it wrong. Not yet. But I say Wilson's making the case is quite aside from its brilliance as scholarship and writing a major contribution to intellectual work. It lays out a program that I believe is not only eminently worth trying, but that will be tried, is indeed being tried. Opportunists there are plenty on the science side, and as Richard Rorty himself has written: "Wilson's book did nothing to change my antecedent belief that any humanist artist or social scientist who comes up with a plausible idea about how to get biology into her act is in an excellent position to get a grant and make a name for herself." And I agree, there are currently strong prejudices in the humanities and social sciences against giving in to science, to scientism, to socio-biology, to other words that have to be surrounded with sneer quotes. I know those prejudices exist; after all I was a provost. They will vanish in due course, because it will become apparent even in English departments that there are better ways to deal with beauty than to decide that it is either ineffable or doesn't exist. It will become obvious that since religion, for example, isn't going away and some of its consequences are of enormous value for civilized life since, and since evolutionary science isn't packing it in and its reach into the origins and mechanisms of mind grows longer and stronger everyday, that we have two choices. One is for the two to continue at war in the vain hope that on each side that the other side can be defeated. The other is for religion to be understood, not only for its current values but also for the mechanisms of its origin and fixation in human behavior, so that the good parts of it can be honored and reinforced. In the latter, the two parties come in from the cold under the big top of humanity, under the aegis of inquiry, which is to be found as the Enlightenment indeed expected, not just in natural science but everywhere that honest investigation is conducted.

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