Showing posts with label philosophy of science. Show all posts
Showing posts with label philosophy of science. Show all posts

Monday, January 05, 2026

The Paradox of Intelligibility: Formal Systems, Transcendental Conditions, and the Logos

I. The Paradox of Conditions

Transcendental arguments occupy an uneasy place in contemporary philosophy. On the one hand, they seem unavoidable, for any serious account of knowledge, experience, or formal reasoning must, at some point, ask after the conditions under which such activities are possible at all. On the other hand, transcendental reasoning seems perpetually threatened by a familiar worry: how can one speak meaningfully about conditions of possibility without already presupposing what one claims to ground?

This worry is not merely rhetorical. It has a precise logical form. If the conditions of intelligibility are themselves intelligible only under further conditions, then a regress threatens: each appeal to grounding demands a higher-order ground. If, by contrast, the conditions are simply posited or declared self-evident, then the argument collapses into dogmatism. Either the transcendental recedes indefinitely, or it hardens into an unexplained given.

This dilemma was famously articulated by Schopenhauer in his criticism of the cosmological argument. He observed that the principle of sufficient reason is employed to generate an explanatory regress, only to be dismissed “like a hired cab” once it has carried the argument as far as it can go. The demand for explanation is invoked universally, and then silently suspended at the point where explanation becomes most difficult. Schopenhauer was right to regard such a maneuver as illicit. But his critique also reveals a deeper assumption shared by both the argument he rejects and the dilemma he exposes: namely, that any legitimate condition must itself be conditioned in the same way. Once this assumption is questioned, the apparent necessity of choosing between infinite regress and dogmatic arrest loses its force.

Much of modern philosophy can be read as an attempt to navigate between the horns of an infinite regress and the unexplained given. Empiricism resists transcendental claims by restricting legitimate inquiry to what is given, yet in doing so tacitly relies on norms of relevance, justification, and inference that are not themselves given. Rationalism seeks secure foundations, but risks mistaking formal consistency or conceptual clarity for sufficiency. Even deflationary approaches that aim to dissolve transcendental questions often do so by quietly presupposing the very intelligibility they decline to explain.

What complicates the matter further is the role of formal systems. Logic and mathematics seem, at first glance, to offer a way out. If the rules of inference, proof, and formalization can be made explicit, perhaps the conditions of intelligibility can be fully internalized within a system. On this view, what philosophy struggles to articulate, formal rigor might finally secure.

Yet the history of formal thought undermines this hope. The more powerful and expressive a formal system becomes, the more clearly it exhibits a distinction it cannot abolish: the distinction between what is derivable within the system and what counts as the system’s being correctly understood, applied, or taken as adequate. No formal calculus contains, as a theorem, the fact that it is the right calculus for the domain it is used to model. That recognition occurs, if at all, at a level not captured by the system’s own rules.

This is not a contingent limitation due to human finitude, nor merely a practical inconvenience. It is a structural feature of intelligibility. Any determination of rules, axioms, or inferential norms presupposes a prior space in which those determinations can be recognized as relevant, coherent, or successful. The question of conditions therefore cannot be eliminated by formalization; it is sharpened by it.

The paradox of transcendental inquiry can now be stated more precisely. The conditions of intelligibility cannot be objects within the same register as what they condition without ceasing to function as conditions. Yet they cannot be nothing, or merely subjective, without rendering intelligibility inexplicable. They must be real without being determinate in the same way that determined objects are real. They must ground without appearing as grounded.

The task, then, is not to escape this paradox, but to understand its structure. Only by doing so can we make sense of how intelligibility is possible at all—and why any attempt to fully objectify its conditions inevitably leaves something essential behind. 

II. Formal Systems and the Excess of Meaning

Formal systems appear, at first glance, to offer the clearest counterexample to the paradox of intelligibility. In logic and mathematics, rules are explicit, symbols are well-defined, and validity is determined by purely formal criteria. If intelligibility could be fully internalized anywhere, it would seem to be here. The meaning of a proof, on this view, is exhausted by its derivability from axioms according to specified rules.

Yet it is precisely within this domain of maximal rigor that the paradox reasserts itself with greatest force. The twentieth century’s foundational results did not merely reveal technical limitations; they exposed a structural feature of formal intelligibility itself. A sufficiently expressive formal system can represent statements about its own syntax and derivations, but it cannot, on pain of inconsistency or incompleteness, secure from within the distinction between what is provable and what is true.

The significance of this result is often misunderstood. It is not simply that there exist true statements that cannot be proven within a given system. More importantly, the recognition of such statements as true is not itself a formal achievement of the system in question. Even when meta-mathematical claims are themselves formalized in stronger systems, the judgment that such formalizations are adequate, faithful, or relevant is not thereby captured. The meta-level recedes as it is formalized. What is gained in expressive power is accompanied by a renewed excess.

This excess is not accidental. A formal system, considered purely as a set of symbols and transformation rules, is indifferent to its own application. It does not determine the domain it is meant to model, nor does it certify that it is the appropriate system for that domain. Those determinations require judgments of interpretation, relevance, and adequacy—judgments that are not reducible to formal derivation without presupposing precisely what is at issue.

To recognize a formal system as a system—rather than as an uninterpreted calculus—is already to stand outside it in a space of intelligibility that the system itself does not generate. This space is not an optional supplement added by human users; it is a condition of the possibility of formalization as such. Without it, there would be no fact of the matter as to whether a symbol counts as a formula, a derivation as a proof, or a model as appropriate.

Attempts to eliminate this excess by further formalization merely reproduce the structure at a higher level. A meta-system may codify inference rules about object-level proofs, but the recognition that the meta-system is doing so correctly again depends on criteria not contained within its formal syntax. The hierarchy does not terminate in a final, self-validating system. What persists is the need for a horizon within which formal relations can be taken as meaningful at all.

This horizon is often described, misleadingly, as external or informal. But this characterization obscures its status. It is not external in the sense of being arbitrary, subjective, or contingent. Nor is it informal in the sense of being vague or merely intuitive. Rather, it is pre-formal: the condition under which form can be recognized as form, and rule-governed activity as rule-governed.

Formal systems therefore do not abolish the question of intelligibility; they intensify it. By displaying, with maximal clarity, the distinction between derivation and meaning, they reveal that intelligibility is not itself a formal property. It is that by virtue of which formal properties can matter at all.

The lesson is not anti-formal. On the contrary, it is only through formal rigor that this structure becomes visible. Logic teaches, by its own internal limits, that intelligibility cannot be fully objectified without remainder. That remainder is not a defect in the system. It is the condition that allows the system to appear as intelligible in the first place.

III. Determinability and the Indeterminate

The preceding analysis suggests that intelligibility is not exhausted by any set of determinate forms. Formal systems, inferential norms, and conceptual frameworks all presuppose a space in which they can be taken as meaningful, adequate, or appropriate. The question now is how to characterize this space without collapsing it into another determination, thereby repeating the very problem it is meant to address.

A crucial distinction must therefore be introduced: the distinction between determination and determinability. Determination concerns what is fixed, articulated, and rule-governed. Determinability concerns the capacity for such fixing to occur at all. While determinations are many, revisable, and domain-specific, determinability is singular in structure: it is the condition under which anything can count as a determination.

This distinction allows us to clarify the status of the “excess” encountered in formal systems. What exceeds formal determination is not a further, as-yet-undiscovered form, nor an incomplete specification waiting to be filled in. It is not an indeterminate object standing alongside determinate ones. Rather, it is the indeterminate field that makes determination possible without itself being determinable in the same way.

The indeterminate, in this sense, should not be confused with the vague, the arbitrary, or the merely subjective. Vagueness is a deficiency of determination; arbitrariness is a failure of constraint. The indeterminate at issue here is neither. It is structured precisely as openness to form. It does not issue determinate rules, but it orients determination by making relevance, coherence, and success intelligible as norms in the first place.

This structure becomes visible whenever attempts are made to formalize the process of revision, interpretation, or theory change. To specify rules for revising a system presupposes judgments about what counts as an improvement, a correction, or a deeper explanation. Those judgments cannot be exhaustively encoded without already assuming a background sense of what the system is for. The purpose that guides revision is not itself derivable from the system under revision.

Here again, regress threatens if one misunderstands the situation. One might attempt to introduce higher-order rules governing relevance or adequacy. But these, too, would require criteria for their correct application. The ladder of determination cannot be retained within the structure it enables. What halts the regress is not a final rule, but the recognition that determinability itself is not something to be determined.

The indeterminate, therefore, is not opposed to form. It is what allows form to arise without necessity. It constrains without dictating. It orders without specifying. In this sense, it is teleological without being mechanical: it orients determinations toward intelligibility without prescribing in advance what form that intelligibility must take.

This orientation is real. It is not projected by individual subjects, nor reducible to social convention, though it is encountered only through determinate practices. Nor is it an abstract metaphysical substrate. It is encountered wherever sense is made, reasons are given, or understanding is achieved. It is what allows a determination to count as about something rather than merely occurring.

We are thus led to a striking conclusion. Intelligibility depends on something that cannot itself be fully rendered intelligible in determinate terms without undermining its role. The condition for the possibility of determination is an indeterminate that does not compete with determinate structures, but sustains them. This is not a failure of theory. It is the structural signature of intelligibility itself.

The task now is to show that this structure is not an ad hoc invention, but has already been articulated—albeit under a different name—within the critical tradition. To do so, we must turn to the distinction between determining and reflecting judgment.

IV. Reflective Judgment and the Teleological Space of Intelligibility

The structure of intelligibility that has emerged thus far—an indeterminate orientation that makes determinate form possible without prescribing it—finds its most precise articulation in Kant’s distinction between determining and reflecting judgment. This distinction does not introduce a new metaphysical posit. Rather, it renders explicit a condition already at work wherever intelligibility is achieved.

Determining judgment operates by subsuming particulars under given universals. Where the rule is known in advance, application consists in identifying what falls under it. This is the paradigm case for formal systems: axioms are fixed, rules are explicit, and correctness is a matter of conformity. Determining judgment is indispensable wherever rigorous articulation is required.

Reflecting judgment, by contrast, operates under fundamentally different conditions. Here, the universal is not given in advance. One is confronted with particulars that demand unification, coherence, or sense, but without a determinate rule that dictates how this is to be achieved. The task of reflecting judgment is not to apply a rule, but to seek one—to orient inquiry toward intelligibility without knowing in advance what form that intelligibility will take.

This distinction is often misunderstood as merely epistemic or psychological, as though a reflecting judgment were a subjective heuristic supplementing genuine cognition. But this misreads its function. A reflecting judgment is not a matter of personal preference or aesthetic whim. It is the condition under which determinate judgments can be coordinated, revised, and meaningfully related to one another at all.

When multiple object domains, formal systems, or explanatory frameworks must be brought into relation, no higher-order determining rule can be presupposed without begging the question. The very act of coordination requires judgments of relevance, adequacy, and purposiveness that are not derivable from the systems being coordinated. Reflecting judgment names this irreducible function.

Kant characterizes reflecting judgment as teleological: it proceeds as if nature were ordered toward intelligibility. This “as if” is crucial. It does not assert that the order of nature is the product of an external designer, nor does it reduce purposiveness to subjective projection. Rather, it marks the structural necessity of orientation toward coherence in the absence of determinate rules. Teleology here is not a doctrine about ends, but a condition for the possibility of sense-making.

This teleological space is precisely what was earlier identified as determinability. It is the indeterminate orientation that allows determinate forms to be sought, evaluated, and revised without collapsing inquiry into arbitrariness or regress. Reflecting judgments do not generate determinate content, but they govern the movement by which determinate content becomes intelligible as content.

Crucially, this space cannot itself be formalized without distortion. To attempt to encode the rules of reflecting judgment would be to transform it into determining judgment, thereby presupposing the very orientation it is meant to explain. Reflecting judgments operate only where algorithmic closure is unavailable in principle. Their necessity is therefore structural, not provisional.

The structure at issue here bears a recognizable affinity to what has been described, within transcendental Thomism, as a pre-apprehension or anticipatory openness to being. But the affinity is limited and must not be overstated. Accounts that locate the horizon of intelligibility within the transcendental structure of the knowing subject, however refined, risk relocating an ontological condition into an epistemic register. The teleological space described here is not the result of any pre-grasp, implicit or explicit, on the part of a subject. It is the condition under which any grasp can count as intelligible at all. Subjects do not constitute this space, nor do they disclose it as its origin. They find themselves always already addressed by it.

Seen in this light, Kant’s Third Critique is not an appendix to critical philosophy, but its completion. Without reflecting judgments, the unity of reason fragments into isolated domains of determination with no principled way of relating them. With it, intelligibility is secured not by a final system, but by a regulated openness to form.

We are now in a position to draw a decisive conclusion. Intelligibility requires a real, irreducible, non-formal order that orients determinate structures toward meaning without determining their content. Philosophy can describe this order, and critique can delimit its function, but neither can generate it from within formal or empirical constraints. To name this order is not yet to explain it—but it is to acknowledge that intelligibility is grounded more deeply than any system can contain.

It is at this point that the question of Logos can no longer be deferred.

V. Logos and the Ground of Intelligibility

The preceding analysis has led, step by step, to a structure that philosophy cannot evade without loss. Intelligibility depends on a real, non-formal order that orients determinate structures toward meaning without itself being reducible to determination. This order is not an object among objects, nor a rule among rules, nor a projection of subjective preference. It grounds without being grounded in the same register. The question now is how such an order can be named without being misconstrued.

It is here that the concept of the Logos re-emerges with philosophical necessity rather than theological imposition. The Logos does not first designate a spoken word, a proposition, or a system of concepts. It names that by virtue of which articulation is possible at all. The Logos is the condition under which meaning can appear, without exhausting itself in any particular meaning that appears.

To invoke the Logos in this sense is not to posit a highest object or an explanatory mechanism. It is to acknowledge that intelligibility itself has a ground that is neither formal nor empirical, neither subjective nor arbitrary. The Logos is not a further determination added to the series of determinations; it is the order that allows determinations to count as meaningful rather than merely occurring.

This clarifies why the Logos cannot be captured within a system without contradiction. Any attempt to formalize the Logos would already presuppose the intelligibility it is meant to explain. The Logos is not what is said, but that by virtue of which anything can be said. It is not the content of meaning, but the source of its possibility. In this respect, the Logos stands in the same structural position as the indeterminate determinability earlier identified: real, irreducible, and non-competitive with determinate forms.

Philosophy can describe this structure and delimit its necessity, but it cannot generate it from within its own methods. While critique can show that intelligibility requires such a ground, it cannot provide the ground itself as an object of determination. This is not a failure of philosophy, but its fulfillment. Reason reaches its limit not in incoherence, but in recognition.

It is at this point that philosophical theology becomes unavoidable—not as a replacement for critique, but as its continuation under a different mode of discourse. Theology does not enter by adding new explanatory content, but by naming what philosophy has already uncovered but cannot finally articulate. The term Logos functions here not as dogma, but as a concept disciplined by metaphysical necessity.

The claim that “in the beginning was the Logos” is therefore not temporal, nor mythological. It is ontological. It affirms that intelligibility is not self-originating, that meaning is not an emergent accident of formal complexity, and that the space in which anything can be understood is itself grounded. Formal systems, scientific theories, languages, and even our most advanced machines do not create this space. They inhabit it. They respond to it.

This response is not compelled. Logos orders without coercion. It grants intelligibility without dictating form. It sustains the finite without abolishing finitude. Determinate structures are neither absorbed into an indeterminate abyss nor left to arbitrariness. They are upheld as meaningful precisely because the ground of meaning does not compete with what it grounds.

From this perspective, the theological claim that the Logos enters history does not negate metaphysical rigor, but radicalizes it. If intelligibility is grounded, then it is not indifferent to the forms it sustains. The Word does not remain aloof from determination, nor does determination exhaust the Word. Meaning can be borne by what does not generate it from itself.

This is not sentiment, metaphor, or consolation. It is a metaphysical consequence of taking intelligibility seriously. Logic itself teaches that meaning cannot be fully objectified without remainder. That remainder is not an embarrassment to be eliminated, but the sign that intelligibility is grounded more deeply than any system can contain.

The paradox of intelligibility is therefore not resolved by closure, but by acknowledgment. Meaning is possible because it is given before it is grasped, ordered before it is determined, and grounded before it is known. To name this ground is not to end inquiry, but to recognize the condition under which inquiry is possible at all.

Postscript: Theory Change and the Limits of Algorithmic Rationality

The structure described in this essay is not confined to abstract metaphysics. It becomes visible with particular clarity in cases of theory change in the sciences. Scientific rationality is often described as rule-governed, cumulative, and corrigible. Yet moments of genuine theoretical transition resist full algorithmic reconstruction.

Consider the adoption of a successor theory in a mature science—one that is not merely an extension of its predecessor, but reorganizes its explanatory framework. Such transitions are not governed by determinate rules that necessitate the abandonment of one theory and the adoption of another. No finite set of criteria—empirical adequacy, simplicity, scope, coherence—functions as a decision procedure whose satisfaction compels assent. Each criterion admits of interpretation, weighting, and trade-off, and no algorithm determines their relative authority in advance.

This does not mean that theory change is arbitrary, irrational, or merely sociological. On the contrary, it is often experienced by practitioners as compelling. But the form of this compulsion is not logical necessity. It arises from a judgment that a new framework makes better sense of the domain as a whole—by unifying phenomena, resolving tensions, or opening new paths of inquiry—without being derivable from the prior framework’s rules of assessment.

Such judgments are paradigmatic instances of reflecting judgment. They operate within an open space of intelligibility in which theories are oriented toward meaning, coherence, and explanatory power without being selected by necessity. Competing theories may coexist within this space, each intelligible, each defensible, yet not equally compelling. The eventual adoption of one over another is lured by intelligibility rather than forced by rule.

What makes this possible is not a hidden algorithm awaiting discovery, but the very structure this essay has traced: an indeterminate, teleological orientation that allows determinate frameworks to be evaluated as frameworks at all. The rationality of theory change depends on this space, but cannot reduce it to formal criteria without loss.

Scientific reason, at its most rigorous moments, thus bears witness to the same paradox that governs intelligibility as such. Its progress presupposes an order that guides without dictating, that attracts without necessitating, and that grounds rational judgment without itself becoming an object of determination.

Appendix: Why This Is Not a Hegelian Account

Because the argument of this essay proceeds at the level of intelligibility as such, it may invite comparison with Hegelian accounts of reason, meaning, and their relation to reality. That comparison is understandable. It is also misleading. The present position differs from Hegel’s at precisely those points that are decisive for the structure of the argument.

First, the account offered here does not operate by dialectical sublation. Hegelian intelligibility advances through contradiction, negation, and Aufhebung, such that earlier moments are aufgehoben—both preserved and overcome—in progressively more adequate conceptual determinations. By contrast, the indeterminacy identified in this essay is not a provisional lack awaiting conceptual resolution. It is an irreducible condition of intelligibility itself. Teleological orientation does not culminate in synthesis or closure, but remains operative precisely insofar as no final determination is possible in principle.

Second, this account explicitly denies the identity of thought and being. For Hegel, the rational is ultimately identical with the real, and intelligibility achieves its fulfillment in the complete articulation of this identity. Here, intelligibility grounds thought without being exhausted by it. Thought responds to intelligibility; it does not complete or actualize it. The possibility of meaning is more fundamental than any conceptual system that articulates meaning.

Third, the teleology at issue is non-necessitating. Hegelian development is governed by logical necessity: given one moment, the next must follow. The teleological spaces described here, by contrast, orient without compelling. They lure without necessitating. They allow for plural, non-equivalent determinations without implying that history, theory, or thought is driven toward a single, comprehensive resolution.

Fourth, subjectivity is not the site of reconciliation. Although Hegel’s system ultimately situates the realization of intelligibility within the self-unfolding of spirit—whether subjective, objective, or absolute—the present account resists any subject-centered grounding. The conditions of intelligibility are ontological rather than anthropological. Subjects participate in intelligibility, but they neither generate nor consummate it.

Finally, and most decisively, this account affirms a permanent remainder. Intelligibility cannot be fully objectified, formalized, or systematized without loss. This remainder is not a defect to be eliminated by further conceptual development, but the very condition under which meaning, judgment, and rational progress remain possible. Any account that denies this remainder in principle, or treats it as destined for eventual absorption into a complete system, differs fundamentally from the position defended here.

For these reasons, while the present argument shares with Hegel a refusal of superficial empiricism and an insistence on first-principles rigor, it rejects the core commitments that define a Hegelian metaphysics. Intelligibility does not achieve closure in system, history, or spirit. It grounds without being aufgehoben.

One may go further. The teleological space of intelligibility described in this essay is not merely compatible with the formulation of a Hegelian system; it is a necessary condition for its possibility. The articulation of any comprehensive dialectical system presupposes a prior horizon within which conceptual development can count as intelligible, progressive, and relevant rather than merely successive. That horizon cannot itself be the product of dialectical closure without circularity. The present account therefore does not reject Hegelian system-building from the outside; it situates it within a more fundamental structure of intelligibility that no system—Hegel’s included—can finally exhaust.

Friday, January 19, 2024

The Contemporary Ethos of Congregational Life in North America: What to make of Science?

In a recent series of posts, I have been reflecting about congregational life in North America and have suggested that what happens in local congregations is quite extraordinary and anomalous with respect to other human activities and endeavors. Consider for a moment what it would be to come upon congregational life from the outside, as it were, with no pre-understanding of what congregational life is all about. What would one see? 

Bob walks into a building with people he does not know, and strangers come up to him exchanging greetings or engaging in conversation with him. He sits down on a chair or long bench and remains dutifully silent while a series of non-mundane events transpire. People speak from the front, sometimes in conversational voices and other times in a very solemn way. Sometimes they read from texts for long periods of time. Someone either in the front or elsewhere in the building starts singing and others join in. Finally, a person in the front addresses those listening for 15 minutes or longer speaking of events from long ago that he or she believes have significance for today. After this, an even stranger event occurs. After some serious words, people sitting on chairs or benches rise from their seats and walk forward, gathering at a rail in the front where they are given little wafers and a sip of wine and told that these things are the Body and Blood of Christ. At other times infants or adults are splashed with water with concomitant solemn pronouncements and prayers.  

After more singing, people finally leave their seats and congregate in the back where friendly discussion ensues about divers and sundry matters. Perhaps Bob is invited to go downstairs or into another part of the building to be part of a class, or maybe he is offered coffee and donuts. Bob's experience here might be like Rita's at another time or another place, or it could be quite different. Rita might be asked to help feed people who have limited funds, or to aid in cleaning the building itself, or to bring a dessert next week. Perhaps someone asks her as to what she thought of the address that someone had given.  

Christians have been meeting in communities like this from their earliest days in the catacombs. In those days men and women listened to readings from texts and speeches about those texts. They cared for each other and oftentimes pooled their resources to help each other. With people they knew and some they just met they worshipped Jesus of Nazareth as the fulfillment of God's messianic expectation. While contemporary church buildings do not look much like the early catacombs, there remain between those days and today common practices of congregational life. 

Congregational life happened then and happens now, and people involved in that life seem to know how to participate in that life. One might say that they have an unthematized pre-understanding of the possibilities and inevitabilities of their gathering together. Congregating to worship a God, hearing speeches, singing and murmuring prayers are all activities that are quite unlike what most people do in contemporary societies of the North Atlantic countries. It is so unlike what people generally do, that one naturally wonders whether these things would be done if there was no already operating social institution for doing these things. Already established is the practice of congregational activity and participation. Without this already established practice, would it ever happen that these activities would develop to be practiced again? In other words, if congregational life were not already occurring, would it happen that it would ever come to occur? Without the reality of an historical institutional of congregational practice and participation, would there be any cultural motivation to invent congregational life again? Is there something about us as social animals that would make the development of congregational life inevitable, or is the having of it fully contingent?

I fear that the answer to the question of inevitability is likely a resounding "no." The fact that there still exist Christian congregations goes against general cultural expectations. I believe that it is because of the unlikeliness of it developing again ars nova, that congregational life is so precious now. Speaking theologically, we might say that the utter contingency of congregational existence is entirely a matter of grace. The practices of congregational living are not something that can be facilely established upon the horizon of contemporary individual piety. One might say that Christian congregations have an ecstatic existence; they live not on their own but out of the life of the Incarnate One, Jesus Christ. They are creatures of grace first, and only secondarily of law.  

In the last post I began to explore facets of the intellectual and cultural ethos of those today participating in Christian congregational life. I spoke of the general cultural default of contemporary man and woman who judge God morally and find Him lacking. As pointed out then, I follow Charles Tylor in claiming that Christianity has not been slowed in its growth primarily because of the rise of science, but rather because the traditional God of Christianity appears arbitrary, capricious and decidedly old fashioned in His choices and judgments, and thus is either widely rejected or deemed irrelevant. Accordingly, it is God's putative morality that makes His existence suspect for millions of denizens of the North Atlantic countries in the early twenty-first century.  

While all of this is true, there is also little doubt that Christianity today is simply a non-starter for many because it appears to violate the very presuppositions of science itself. Many participating in contemporary congregational life carry with them both a sense that God is morally unreasonable or suspect and that the ultimate description of reality is physical, that what ultimately exists are those entities over which our fundamental theories of physics quantify. In other words, what ultimately exists are those entities to which our fundamental physical theories refer.  Accordingly, while people might enjoy participating in congregational life, there is a sense that they actually know better, that human existence is ultimately a physical matter and that congregational life is a living as if this were not the case.

It is unfortunately characteristic of our time that people generally know little about the practices and theories of science, particularly those of natural science. Most think that science simply deals with facts, not recognizing the deeply theoretical nature of scientific research. Accordingly, some review of what we claim when we make scientific claims is perhaps useful.

Every scientific claim is theoretical. To claim that the earth revolves around the sun is to have a theory in which the terms 'sun', 'earth', and 'revolves' occur. The meaning of a set of theoretical statements is found in the models which make these statements true. 'Sun' refers to a particular entity, 'earth' refers to a particular entity as well, while 'revolves' refers to a complex set of duples or ordered pairs. Theories, no matter how simple or complex, state the way the world might be. At the risk of gross oversimplification, true theories state how the world actually is -- or alternately what is reasonable to believe about how the world is -- and false theories how the world is not -- or what is reasonable not to believe about the world. 

Theoretical claims of how the world is are tentative and provisional because we are never certain that the theory we are assuming won't finally be shown to be false by how the world ultimately turns out to be. It could take hundreds of years to disconfirm statements of scientific theory. For instance, our theory of the early universe makes theoretical statements about states of the universe in its initial nanoseconds, and these statements are presently untestable because we don't have requisite energy to recreate conditions of the early universe to confirm or disconfirm the statements.  Maybe 500 years from now we would have the technology to accelerate particles to velocities characteristic of the very early universe, and we can then claim that the theory then regnant is consistent with observations or that it has been falsified by them. 

When we construct scientific theories, we bring certain values with us as to what a good scientific theory might be. We want our theories to be simple if possible. They should be applicable to our observational experiences and adequate to them. Adequacy means that the theories can deal in principle with all the kinds of experience we have. Theories should be internally consistent and coherent. Coherency means that we should not have in them arbitrarily disconnected assumptions or that we should not appeal to different kinds of entities if explanation is possible by appeal to only one kind of entity. Simple theories that appeal to one principle are often thought to be more beautiful than those making appeal to differing fundamental principles. While there is nothing necessarily in nature that would disallow it from operating upon many different ultimate principles rather than one, human theory-making always attempts to explain experience in terms of one rather than many. Theories doing this are simply assumed by most to be more beautiful than others. Another value we want theories to have is fecundity. Can a theory sustain a hearty research program? Is it properly relatable to other theories? Theories which do not sustain interest or research are simply irrelevant, and science in general does not develop its views of the world on the basis of irrelevant and/or isolated theories. 

Scientific theory formation happens by adopting likely stories of explanation, stories which fit our already theoretical views of the world. We establish theories that try to give natural explanations for natural events. Because we assume in the practice of science a methodological naturalism, God cannot be a theoretical entity within scientific theory. It is not that science ultimately excludes God from the universe, but it is rather that the humble practice of scientific theory-building limits itself to explanation in terms of natural processes, events and laws. By its very nature, science does not and cannot appeal to non-natural explanations for natural events. Despite the final metaphysical implausibility of a particular physicalist explanation, natural science must attempt to explain why something is the case by appealing to only those natural entities and processes that can be in principle referred to by standard scientific theory.  

One can see this clearly in the way that explanation often occurs in macro-evolutionary theory. Since 'natural adaptation' is a theoretical notion it can be appealed to in explaining why this particular life form developed in this way and not another. Oftentimes 'natural adaptation' is a notion that can't be profoundly specified. One appeals to it in a way that mimics perhaps the appeal that earlier generations made to God's will. Why did x develop in a P way and not in Q way? God willed it!  

But while all would agree that God willing nature to develop in a P way rather than a Q way is not a persuasive explanation in our time, many nonetheless believe that a simple appeal to natural adaptation can explain P development rather than Q development. But when it comes to the really big issues of macro-evolutionary theory, the devil is clearly in the details. Oftentimes, mechanisms by which putative natural adaptation selects for P development rather than Q development cannot yet be specified, and one is left with a direction and a trust that someday a mature theory will be able to explain this P development. While appealing to the general direction of "nature selects it" rather than "God wills it" has greater plausibility in our time, the logic of the argument remains the same. Unless particular natural explanations can be given that explain the particulars of macro-evolutionary development plausibly no true explanation has been given. Simply put, just because "natural adaptation" is a more popular explanation today than "God wills it," does not mean that the former explanation is, or ultimately will be, more successful. 

My point here is simply to say that natural science is a deeply theoretical human activity. In casting about for a natural theory to explain some set of natural events, one must select a theory that "fits in" with the theories that one already has, and that is supported by the observational data. Scientific theory, we now know, is always underdetermined by observation and the acceptance of other theories. It is always logically possible to explain events by appealing to other sets of natural events than those assumed in one's theory, or by explaining things in terms of non-natural events. The point is, that explanation in terms of non-natural events is not the way that the institution and practice of scientific theory formation and confirmation/disconfirmation proceeds. Moreover, there is no scientific decision procedure, no algorithm, on the basis of which "correct" scientific theory is selected and "incorrect" theory rejected. Natural science, like all human activity, is messy. 

All of this is simply to say that the best explanation for why the universe bears the marks of design can be the fact that God was at work designing the universe. One can reasonably hold this while still holding that such an explanation is not scientific, for it violates the rules by which scientific theory-formation proceeds. It is not a scientific explanation because it appeals to non-natural agency, something clearly disallowed in the doing of natural science. But why think that all rational explanation must be natural scientific explanation?  

My point is that few people participating in the life of Christian congregations in these days know how theoretical and rule-governed is the activity of scientific explanation. So again, how can it be that God was involved in creation when our natural scientific models show the universe to be a broken symmetry flowing out of an infinitely dense point without extension? 

The answer is not difficult because, in truth, in any explanation we cannot avoid metaphysical models. Ought we explain the universe by making no appeal to non-natural agency? If so, why? The point is that there is nothing in the observational data that disallows a metaphysics of divine action in creation. The choice is ours: Do we want to adopt a materialist/physicalistic metaphysics or not? If so, why, and if not, why not? 

But the horizon of most in congregations is that science does explain things, and that this explanation finally does not rest in human freedom as to the adoption of a metaphysics of physicalism or that of theism. However, just because we can give physicalist explanations of most physical events does not mean that we should always do so, or even that it is rational to do so.  

In summary, the horizon of many within congregations now is that the morality of God is problematic, and that there is something in the nature of the world or natural science itself that calls for natural scientific explanations for things. I acknowledge that the first problem has no easy and quick solution, but want to point out that it is a certain misunderstanding and ignorance of the scientific process itself which makes many simply assume that science is in conflict with religious faith.  Reinvigorating congregational life in North America must deal with the fundamental assumptions of people in the pews today. Of these, two are very important: Can the nature of God be deemed consistent with Christian congregational experience and practice, and can our understanding of the divine escape from the easy physicalisms that dominate much of popular culture today?  

Monday, May 17, 2021

Theology and the Philosophy of Science: The Syntactic and Semantic Views

The Received View in the [hilosophy of science is the syntactic view.  Accordingly, scientific theory is construed as a set of sentences with the laws of the scientific theory being its axioms. By inputting initial conditions and conjoining these conditions to the laws (axioms) of the theory, one deduces future states of the system as theorems.  This is the theory's predictions. The syntactic conception of scientific theory is clearly in the tradition of Euclid, Aristotle, Newton, Carnap and the Logical Positivists. But as we pointed out in the last post, there are problems with the account. 

One problem is that the syntactic view presupposes the so-called analytic/synthetic distinction, that is, the distinction between what is true by definition versus what is true because of the way that the world is. The distinction is rooted in the work of Immanuel Kant (1724-1804). Kant famously claimed that an analytical statement or proposition is true because the meaning of the predicate is included in the meaning of the subject.  A synthetic statement, on the other hand is ampliative in that the meaning of the predicate is not included in the meaning of the subject.  The first effectively decomposes the meaning of the subject, finding that what makes the subject true also makes the predicate true. The second amplifies the meaning of the subject; it asserts of the subject that something is true that is not included within the very meaning of the subject. 

While this semantic distinction in Kant must be distinguished from the epistemological distinction between what is known "prior to" experience (the a priori) and what is known "after" or on the basis of experience (the a posteriori), we often today simply identify the a priori with analytical judgments and the a posteriori with synthetic judgments.  For instance, "a bachelor is unmarried" is a true analytic statement because one cannot think of married bachelors, but "a bachelor is happy," if it is true, would be a true synthetic statement.  We would know the second on the basis of experience, e.g., surveys, personal observations, controlled experiments, etc. 

W. V. O. Quine famously criticized the analytic-synthetic distinction about seven decades ago, calling it one of the "dogmas" of empiricism.  He claimed that the analytic-synthetic distinction is not a matter of meaning over and against experience, that it is not a matter of the necessary truth of the former over and against the contingent truth of the latter. The distinction is not absolute at all, he avers, but it is merely a matter of degree, of what statements we will give up last.  In our "webs of belief," we hold onto some statements longer than others.  We might say, "water is H20" and "water is odorless," and dutifully subject each statement to our "tribunal of experience."  It is clear that confronted with experience, we would hold onto the truth that water is H20 much longer than water is odorless.  In fact, I can imagine some experience which would compel us to claim that water is not in fact odorless.  Of course, the latter statement could be "saved" from repudiation by declaring that it is not water itself that is not being odorless, but something in the water that is smelling foul.  

Problems with the analytic/synthetic distinction were a profound challenge for the syntactic view of scientific theory because the "bridge rules" of the theory coordinating the theoretical and observational terms were supposed to be a matter of meaning alone.  This theoretical term just means this observational term. In fact, the higher level terms and propositions of the theory could be in principle reduced to phenomenal experience. The classic text of this approach is Carnap's The Logical Construction of the World.  Clearly, if analyticity does not hold by meaning alone, then the very notion of bridge rules is undermined. 

There were, of course, other difficulties with the syntactic approach. It turned out that rigorous axiomatic laws were too cumbersome to be used by actual scientists. Also, because scientific theory was construed in terms of sentences, endless debates in the philosophy of language ensued.  Finally, there were Goedel problems.  As it turns out, no axiom set and system of proof within a theory could prove all of the sentences regarded as true within the theory. The result was the overturning of the syntactic view of scientific theory.  The new approach was called the semantic view of scientific theory.

Emerging in the 1970s and 80s, the semantic view of scientific theory generally identified theories with classes of models or model-types along with hypotheses of how these models relate to nature. A theory thus could thus be cast as a "class of fully articulated mathematical structure-types" using set-theoretical predicates.  (See Demetris Portides, "Scientific Models and the Semantic View of Scientific Theories" in Philosophy of Science, December 2005, pp. 1287-98.)  

Models are thus included in the the theory structure, and are themselves constructed on the basis of data within a context of experimental design and auxiliary theories.  On the semantic view model A is equivalent to Model B if and only if there is a correspondence of the elements and relations of A and B.  (Some advocates claims there must be an isomorphism, some a partial isomorphism and some merely a similarity.) 

Advocates of the semantic view claim that a physical system is represented by a class of model types. Semantic theorists generally hold that data alone does not falsify a theory, but that  data, design and auxiliary theory are important in the construction of data structures. These data structures must be sharply distinguished from the theoretical model, in that the latter is a construction out of the data structure.  But the question arises: What exactly is a data structure? 

It seems that the models in question can be either more abstract, e.g., mathematical structures, or more concrete, e.g., visual models of molecules. Proponents of the semantic view often claims a superiority over the syntactic conception in that scientific theory now is understood as actually focussing on the actual things that scientists treat within their theories.  Moreover, they claim that the semantic view allows that scientific theories can be clearly seen as not simply related to actual chunks of the world, but rather to mathematical objects as idealizations that are connectable to the world. Such idealizations, they claim, are the true objects of science. Accordingly, abstract mathematical structures come to be understood as that which the theory is about. Thus, semantic theories privilege mathematics -- especially "set-theoretical" entities -- over first-order predicate logic.

Rasmus Groenfeldt Winther's article in the Stanford Encyclopedia of Philosophy distinguishes two general strategies within the semantic view generally.  The state-state approach focuses upon the mathematical models of actual science such that the scientific theory just is a class of mathematical models. Alternatively, the set-model theoretic approach emphasizes that the axioms, theorems and laws of a theory are satisfied, or made true by, certain mathematical structures or models of the theory.  The second approach is often deemed the more fruitful. 

I find Michael McEwan's 2006 article "The Semantic View of Theories: Models and Misconceptions," helpful in understanding what the semantic view is and is not.  McEwan points to the following slogan of the semantic view: A theory is a collection of models (1).  On what he calls the naive semantic view, the "is" here is the "is" of identity. Tarski famously connects models to semantic concepts through the notion of satisfaction.  He uses model-theoretic models in accomplishing this. A model-theoretic model is an interpretation which satisfies a class of statements by specifying a domain of individuals and defining the predicate symbols, relations and functions on this set of individuals.  Accordingly, a theory is a collection of model-theoretic models (2).  

On the model-theoretic model the theory is a set of sentences and the models are interpretations in which the set of sentences turn out to be true. A model-theoretic theory is true for a given model just in case the sentences are true on that model. The class of model-theoretic models make true the model-theoretic theory.  McEwan calls the identification of the model-theoretic theory with the class of its models a naive semantic view.  If, however, the class of models satisfies the sentences of the model-theoretic theory, McEwan no longer dubs this a simple naive semantic view.  He specifies the naive semantic view as having the following conditions (3).

  •  It is identified with M, the class of model-theoretic models,
  • The models in M are directly defined, 
  • The naive-theory is true for model n just in case n is an element in M
One problem with the naive theory is that it is difficult to see how any of it touches the world.  As it turns out, no n need represent the world at all! Another problem is that since the theory itself is just the class of models, it is what it is only when each model is true. This means that no model really instances the theory, for the theory would not be that theory if it had other instances!  As McEwan points out, the question of whether the solar system instances Newtonian mechanics is not a non-trivial one, but on the naive theory, it would be true just in case we stipulate that it is so (5).  Simply put, if the naive theory were true, then one could not axiomatize in model-theoretic theory without knowing in advance which interpretations would satisfy the model-theoretic theory.  But we do not always know in advance which interpretations satisfy our theory; there are sometimes unintended models. (Consider the non-trivial question of whether a newly discovered solar system obeys Newtonian laws.) Thus, by modus tollens, naive theory is not true.  McEwan puts the matter bluntly: "There is nothing above and beyond the models themselves to decide whether a theory is applicable to some model or not" (7). 

Fortunately, the semantic view is not identified with the naive theory.  Indeed, the semantic view realizes that the models of M must represent the world in some way.  Clearly, realists and many empiricists would want this to be so. Why not then simply identify n with a physical model?  But how can a physical system be an interpretation of a formal language?  This seems to have the matter backward.  

As it turns out, semantic views are plagued by the representation problem. Consider the claim that one of the models of M (say n) is the faithful representation of the physical world. But on what basis is n the representation? If the theory is the class of models, one of which is the real world, then why identify the theory with the class of models in the first place (8)?

It seems that the semantic view must somehow deal with the representation problem.  However, Bas von Fraasen a theory's models is identified with a class of structures.  He writes: 
The syntactic picture of a theory identifies it with a body of theorems, stated in one particular language chosen for the expression of that theory.  This should be contrasted with the alternative of presenting a theory in the first instance by identifying a class of structures as its models.  In this second, semantic, approach the language used to express the theory is neither basic nor unique; the same class of structures could well be described in radically different ways, each with its own limitations.  The models occupy center stage.  

So what of these model that occupy center stage? What becomes of realism on the semantic view?  If the models are mathematical structures, then are the objects in these models "real enough" for one to claim that one's scientific theory is true of the real world?  Is the wave function a mathematical object and thus real in the sense that a scientific realist wants?  What would distinguish a real physical object from other pretenders?  What about unobservables -- are they real?  What would distinguish an unobservable mathematical object from an on observable "real" one?  The representation problem is clearly a problem for realism. 

While one might claim that the semantic view is the new "received view" in the philosophy of science, there are very strong voices that have emerged which have pointed to the "extra-scientific" or "extra-rational" factors at work in science, factors that seem as almost as deadly to the semantic view as they are to the syntactic view. We shall attend to these in the next post.