Foundationalisms

On what should we base our beliefs? "Reason and evidence," some are inclined to reply. Sure. Fine. But what is reasonable, and what counts as evidence?

 

Biblical fundamentalists think that something being asserted somewhere in the Bible is a piece of evidence that the asserted proposition is true. Why do they treat such a thing as evidence? Because, we might say, they believe a certain story about the Bible and its origins, a story which, if true, implies that biblical assertions have enormous evidentiary weight. But why think this story about the Bible is true?

 

Most everybody thinks that sensory experiences can serve as evidence for the truth of claims about a world external to the mind, claims prompted by our sense experience. Why?  Maybe there's a story here, too, a story about our senses and their relation to the world that would have to be very different from the story told in the first part of the movie "the Matrix." But why believe that story? Or maybe there isn't a story here at all. Maybe we just believe the deliverances of our senses, period. There is no reason. We just can't help it.

 

Leibniz thought that the Principle of Sufficient Reason (PSR), much like the principle of non-contradiction, was a self-evident principle (self-evident to our intellect) which could reliably guide our reasoning. As such, he thought he could reason from some pretty uncontroversial propositions to the conclusion that a necessary being must exist. We might say that, based on his understanding of "reason," the existence of contingent things is evidence for the existence of a necessary thing. Why does Leibniz accept PSR? Why does Hume reject it?

 

In each of these cases we are led to think about foundations. Our reasoning has to have starting points from which we reason--things that are either immediately taken as having evidential value, or are taken to have evidential value on the basis of some broader system of beliefs--perhaps organized into a narrative framework. And our reasoning doesn't merely need evidential starting points. We also need to have standards of reasoning--principles which guide our inferences, leading us to take some body of evidence to be evidence for a conclusion.

 

In short, to base our beliefs on reason and evidence, we need rational and evidential starting points. Foundationalist epistemologies treat our starting points as that upon which our whole network of beliefs is ultimately built.  Following the metaphor of building construction, we need a solid foundation or the whole edifice becomes unsound.

 

In my last post, I suggested that Hegel could be viewed as a foundationalist, but of a special kind--namely, a fallibilistic foundationalist. In this post, I want to distinguish some different species of foundationalism, locate Hegel's dialectic within this taxonomy, and offer a case for the advantages of Hegel's approach.

 

I'll begin with a broad distinction between what I’ll call absolute foundationalism and fallibilistic foundationalism. Absolute foundationalism treats one’s foundations as beyond challenge, and might be further divided into two sub-species: what I’ll call Cartesian-style foundationalism, and what I’ll call dogmatic foundationalism. Cartesian-style foundationalism seeks to discover which foundations are, in fact, beyond dispute—through something like the methodological doubt pursued by Descartes in his Meditations—and then rely only on such foundations. Dogmatic foundationalism, by contrast, treats its starting points as beyond dispute but makes no attempt to offer a philosophical case for doing so.

 

In fact, dogmatic foundationalism might be viewed as arising out of the perceived failure of Cartesian-style foundationalism, based on a pair of prima facie compelling critiques. The first critique runs basically as follows. To rely on nothing other than those starting points which are indubitable is to rely on starting points that can’t get you anywhere. If you insist on believing only what can be grounded on such starting points, you are driven to a kind of solipsism: the only thing you can trust is the existence of your own thoughts, and you are unwarranted in believing that any of those thoughts correspond to any reality outside your own mind. This is a kind of extreme skeptical outcome that is intolerable—it makes living a human life impossible—and can only be overcome by allowing in foundations that don’t have the Cartesian stamp of indubitability.

 

The second critique should be familiar to followers of this blog: No attempt to prove that one’s foundations are beyond dispute can be successful, because no such attempt can be ungrounded. How, then, can the attempt itself avoid relying on foundational starting points? And these will be either the very ones one is attempting to establish, or different foundations which, therefore, have not themselves been proven to be beyond dispute.

 

In effect, dogmatic foundationists draw three lessons from these critiques of Cartesian-style foundationalism: (a) everyone has foundations, (b) everyone has more foundations than the class of indubitable ones (assuming this class has members at all), and (c) no set of foundations can be justified or shown to be the right ones, since all such efforts are either circular (and hence dogmatic) or appeal to deeper, unconsidered foundations that are held to dogmatically.

 

This third lesson is what leads them straight to dogmatic foundationalism: we have no choice but to be dogmatic foundationalists, but we do have a choice about which dogma to embrace. On this view, the only difference between the empiricist and the biblical fundamentalist is which foundations are being held to dogmatically—"who" one has chosen to treat as one’s ultimate epistemic authority.

 

The problem with this argument, of course, is that it is a false dilemma. There are more options than the two versions of absolute foundationalism (Cartesian-style and dogmatic). There is fallibilistic foundationalism.

 

The fallibilistic foundationalist accepts (a) and (b), but isn’t prepared to embrace an unqualified form of (c). Instead of insisting that “no set of foundations can be justified or shown to be the right ones,” the fallibilistic foundationalist wants to say instead that “no set of foundations can be justified or shown to be the right ones prior to their adoption.” But once one has adopted a set of foundations, a critical stance becomes possible with respect to specific foundational beliefs.

 

Hegel's dialectic can be seen as falling into this class. I will concede that there are those who would resist using the term "foundationalism" to describe Hegel's method, but this is a linguistic quibble in which I'm not much invested. I recall that once, at a party in graduate school, I announced that Hegel "has a coherence theory of knowledge but a correspondence theory of truth." In so doing I classed him as a coherentist rather than as a foundationalist. But these are terms of art in the discipline--and there is something about Hegel's epistemology that strikes me as warranting the foundationalist label (as I noted in my last post).

In describing Hegel's approach as it relates specifically to philosophy, Michael Allen Fox notes in his surprisingly accessible book on Hegel (called, interestingly enough, The Accessible Hegel) that Hegel was largely indifferent to one's starting point in the philosophical journey. Wherever we start, "our philosophical journey will inevitably be a prolonged process of self-examination in which thought interrogates itself and remedies its deficiencies as it progresses." The end result of this process will be what "'justifies' the starting point we have chosen by proving its fruitfulness in yielding knowledge."

We have to start somewhere--to think at all requires us to have rational and evidential starting points that characterize what that thinking will look like. But as we engage in whatever style of thinking these starting points entail, we will inevitably encounter and transcend deficiencies. Whatever we think about, we will eventually be forced inward to thought itself, and called upon by its failures to revise our starting points.

In fact, Hegel thought this was true not just of philosophy. The same dialectical process plays out not just in the history of philosophy, but in human history. The efforts of human societies to engage with the world drive humanity towards "self-interrogation" in which deficiencies are discovered and remedied.

As a way of clarifying and defending this Hegelian approach, I want to consider a version of fallibilistic foundationalism out of which Hegel's species might be thought to arise. I’m inclined to give it a big mouthful of a name: defeasible-but-trustworthy doxastic practice foundationalism. After all, it’s important for academics to come up with pretentious-sounding names, or they wouldn’t be academics. But to save space, I’ll call it DTDP foundationalism for short.

 

To understand this species of foundationalism, we need to know what a “doxastic practice” is. The term is one I get from William Alston, and it basically refers to any belief-forming practice one might engage in. Here are some examples: 

Assign a set of contrary beliefs to heads and tails on a coin, flip the coin, and believe in accord with the outcome of the coin flip.

Use your senses to investigate your environment, and believe whatever propositions you find yourself immediately inclined to believe based on such sensory investigation.

In attempting to form beliefs about what happened to you in your past, consult your memory.

In forming beliefs about regularities in nature, make predictions about what one ought to observe under given conditions if the supposed regularity holds, then create or put oneself into the given conditions and determine if one observes what was predicted. Keep doing this. If the supposed regularity remains unfalsified after extensive testing, accept it as true.

In forming beliefs about what happened in Europe in the 19th Century, consult your old “History of Western Europe” textbook.

In forming beliefs about what happens after bodily death, consult the Upanishads and the Vedas and believe whatever is clearly stated on this matter in these texts.

 DTDP foundationalism attaches credibility to some but not all of the range of possible doxastic practices, in effect treating as foundational any belief that comes from this select list of “trustworthy” practices. But a belief coming from a “generally trusted” practice is not immune to criticism. Rather, any such belief, call it B, is believed unless and until it is confronted with “defeaters,” that is, other beliefs that arise out of trusted doxastic practices and which call B into question.

 

There are different sorts of defeaters, but I won’t get into that now. What this rough characterization makes clear is that this species of foundationalism acknowledges the fallibility of our foundations, and builds a kind of checks-and-balances system into our belief-forming practices. The checks and balances cannot be implemented apart from embracing the presumptive trustworthiness of a set of doxastic practices, but insofar as the trustworthiness of their deliverances is only presumptive rather than absolute, it allows for specific foundational beliefs produced by the agreed set of doxastic practices to be rejected based on the total deliverances of the entire set.

 

But how do we arrive at which doxastic practices to trust in the first place? Here, there seem to be a range of alternatives. You could take an essentially social approach: identify those doxastic practices that enjoy both wide social use (they are widely relied on in the formation of beliefs) and a high degree of intersubjective corroboration (they typically lead most people to the same beliefs when used in the same circumstances).

 

Then there’s the introspective approach. You look to the “phenomenological features” of the doxastic practice and its deliverances—that is, those qualities or characteristics available to introspection. Perhaps the beliefs formed by the practice consistently just seem right to you, so much so that you essentially “cannot help but believe them.” Or maybe the practice itself has an inner “veridical feel”—a sense of putting you in touch with truth as you’re engaging in it.

Or maybe you identify those doxastic practices you pretty much have to trust if you want to live anything remotely like an ordinary human life, and you trust them and only them.

Alternatively, you might take the approach of someone like Alvin Plantinga, saying that those doxastic practices are trustworthy which involve the use of cognitive faculties under those conditions in which the faculties are generally reliable. The problem here, of course, is that there may be a difference between a doxastic practice being reliable and our being able to tell that it is reliable. Plantinga has famously proposed that we have a cognitive faculty dubbed "the sensus divinitatus" which is responsible for theistic belief and which produces that belief reliably. His critics instantly cry foul--but part of Plantinga's point is that we have no inner guarantee or non-circular proof that any of the things we treat as reliable cognitive faculties are reliable cognitive faculties. That a congitive faculty is trustworthy, in the sense of consistently delivering true beliefs, does not clearly entail that we have immediate access to this fact.  And that, of course, is part of the problem. How do you decide which doxastic practices to presumptively (not absolutely) trust?

 

However you decide, it appears at least initially as if you confront variants of the same troubles that plagued absolute foundationalism. The problems have simply shifted from the level of foundational beliefs to the level of foundational doxastic practices.

 

Consider: Suppose I adopt a social version of DTDP foundationalism—trusting my senses, the pronouncements of certain socially agreed-upon authorities, etc. Either I have grounds for believing that doxastic practices embodying the relevant social features are more likely to produce true beliefs than those that lack these features, or I don’t. If I do, what would those grounds be like? Wouldn’t they either be circular (relying for their support on beliefs that are ultimately derived from these very same doxastic practices) or based on different doxastic practices that then fall outside the scope of justification in terms of their social features? Aren’t we then driven to being dogmatic in our embrace of the doxastic practices we embrace, simply shifting the problem from unjustified trust in certain foundational beliefs to unjustified trust in certain foundational belief-forming practices?

 

Here is where we are, I think, pushed towards something more Hegelian. The reason why DTDP foundationalism offers a basis for critiquing foundational beliefs, even when they come from trusted doxastic practices, is because the whole set of trusted practices can generate defeaters for individual beliefs. But by the very same mechanism, DTDP foundationalism also provides a basis for critiquing the doxastic practices themselves.

 

Here’s what I have in mind. If a doxastic practice that was initially put into the “trustworthy” class keeps encountering defeaters for the beliefs it generates, it might eventually be bumped out of that class. Or if the doxastic practice encounters defeaters in a certain context, it might be judged untrustworthy in that context. We might find that it encounters fewer defeaters when certain refinements are made to the practice, and so the practice might evolve to embody these refinements. It is very easy to see the scientific method as emerging out of precisely this sort of refinement.

 

But keep in mind that all of this evolution is influenced by one’s starting points—that is, by which doxastic practices one has initially included in the generally trustworthy set. What set of doxastic practices one treats as trustworthy will shape what defeaters, if any, drive the evolution of the whole set. Start with too narrow a set, or get “unlucky” in your starting points, and you may be left with only a few refined doxastic practices that you trust—and can you really trust even them? Maybe their having escaped defeat is mostly a function of the shrinking set of possible sources of defeat.

 

The worry here is this: The smaller the set of trusted doxastic practices, the less likely any of them are to encounter defeaters—simply because of how few they are, rather than because of their intrinsic merits. And as the evolutionary process described above continues, you won’t be pumping out new doxastic practices. Defeaters destroy. They don't create. As the evolution continues and the number of trustworthy doxastic practices shrinks, we’ll thus be put into a position in which we should be increasingly less confident that continued-failure-to-be-defeated is a good gauge of trustworthiness.

Perhaps this worry isn't decisive, but a different worry looms nearby. Even if one's remaining doxastic practices are deemed trustworthy based on their success in producing undefeated beliefs, we might worry that the subset of beliefs generated by these practices is far too narrow to be representative of reality, or that it is too narrow to help us live our lives in a way that meaningfully embodies the truth about ourselves and our world. We may have evolved certain practices to a point of high refinement but left ourselves with a set of practices that is nevertheless deficient, because the boundaries of the knowable that they establish are too narrow.

 

But once one treats doxastic practices as mutually evolving in the light of each others’ deliverances, one can begin to ask whether this fixation on nothing but doxastic practices might not itself speak to a set of unconsidered presuppositions—some hidden starting points that shape our ideas about what should be our starting points. Why should we make doxastic practices the sole underpinnings of our belief system? Why not, instead, begin with an interpretation of the whole of experience, embrace a set of doxastic practices based on that interpretation, and then critically live out this whole?

In other words, starting with doxastic practices as the foundation for all our beliefs is not the only way to start, nor is it the only thing that can lead to an evolutionary process. So, why not allow as a legitimate starting point a perspective which treats a narrative picture of reality as foundational, and doxastic practices as derivative?

 

A process that treats only doxastic processes as foundational, and then evolves by successively refining and discarding doxastic practices in the light of experience, is in danger of ultimately leaving one with too small a set of foundational beliefs on which to build. As noted above, while experience with the failures of doxastic practices can refine and rule out ones that were already part of your epistemic arsenal, it doesn’t generally introduce into your arsenal wholly new doxastic practices that you’ve never thought to try.

 

Consider the analogy of natural selection: to take advantage of all the "niches" available in the environment, it’s not enough to have a mechanism that kills off unsuccessful species. You also need some creative wellspring from which new species arise. Storytelling, speculative philosophy and theology, mythological narrative—these things are the creative side of the human endeavor, and it is in part from them that new ways of engaging with the world, of wrestling with what to believe and what not to believe, come about. Perhaps, then, we shouldn't just allow holistic interpretations and narratives as potential starting points, but should allow a place in our epistemological lives for the creative process by which such interpretations and narratives arise. In other words, we should treat storytelling and speculative thinking as not just an entertaining diversion but as helping us in the quest for truth.

This is not to say, of course, that every story we tell should be immediately embraced as true or anything like that. But some stories resonate in such a way that people are moved to live them out as if they were true. And in some cases these initial experiments don't immediately come crashing down by virtue of a volley of defeaters. Instead, the experiments knock down some parts of the story but not others. And some elements in the narrative motivate new doxastic practices which themselves prove extremely fruitful, in the sense of pumping out beliefs that resist defeat. Many see the birth of the scientific method in these terms: the Christian conviction that the universe is essentially orderly, that there must be a regularity and structure beneath even the most chaotic-seeming dimensions of our experience, set the stage for science.

 

And of course there’s more to life than telling stories and engaging in doxastic practices. We have artistic and athletic activities, cultural and religious rituals, spiritual practices, ways of life that embody value systems and moral codes. Engaging in the business of living impacts, in all sorts of ways, our beliefs and our ways of forming beliefs.

 

The point is that doxastic practices are not isolated from human life in all its richness and diversity. To allow them to evolve in isolation from the rest is to presuppose that there isn’t anything in the rest that has the power to promote the quest for coming into alignment with the Truth. And I would say that the fallibilism implicit in DTDP foundationalism calls one to be suspicious of any such presupposition. So, not only does DTDP foundationalism move beyond criticism of the deliverances of one’s adopted doxastic practices and towards lived-out criticism of the practices themselves; it also moves towards allowing for more than just doxastic practices into the class of legitimate starting points one might legitimately live out critically.

And so we've made our way towards something that looks more like the Hegelian approach. But how does it work, you may ask? How does one framework give rise to another? What sorts of deficiencies motivate a change in one's system?

 

Here I must confess to an attempt to be clever. In case no one’s noticed yet, this post has not merely been an attempt to make a case for the Hegelian dialectic. It’s also been laid out, however imperfectly, to serve as an example of the Hegelian dialectic at work.