* A paper written for an epistemology class for Biola's MA in philosophy.
AN INDIRECT DEFENSE OF DIRECT REALISM BY A DIRECT CHALLENGE
TO LAURENCE BONJOUR’S INDIRECT REPRESENTATIONAL REALISM
Direct realism is motivated by pre-philosophical intuitions that seem to orient one’s beliefs in an external world with which one is in direct contact. However, direct realism has fallen on hard times. Since direct realism is seen as problematic, this sets up a search for other views which are more philosophically defensible. Laurence BonJour’s version of indirect representational realism is one influential version of representationalism. The following examination of BonJour’s views will proceed in two steps. First, I will provide a brief expositional outline of Bonjour’s views regarding indirect realism. These include, (i) realist intuitions that motivate a belief in an objective, external world, (ii) the denial of direct access to this objective, external world, and (iii) the belief that any such access to this objective, external world must be indirect access via mental representations. The second step will consist in an examination of some deep internal problems with BonJour’s views. This failure of indirect realism, coupled with the acknowledged realist intuitions, will motivate a renewed examination of direct realism. Although a full-fledged defense of direct realism is impossible in this short paper, the argumentation contained here will serve to clear away the option offered by BonJour, thus opening up avenues for a reconsideration of direct realism.
BonJour’s Indirect Representational Realism
BonJour is a realist in that he affirms a mind-independent external world which a subject can access. He acknowledges these realist intuitions when he speaks of “our
ingrained inclinations to describe the experiential content in physical-object terms.” Later he refers to “the approximately commonsensical idea that my sensory experiences are systematically caused by a realm of 3-dimensional objects” A recognition of these realist intuitions will be important when assessing BonJour’s views since it is precisely these realist inclinations that will work against BonJour’s overall position.
Although BonJour affirms realism, he denies the traditional notion of a direct realism. BonJour summarizes the representationalist view under two theses:
[F]irst, that what is perceived directly or immediately in sensory experience is not ‘external’ physical or material objects, but rather entities that are mental or subjective in character—sense data or sensa, according to the most standard versions of the view; and second, that the only available (reasonably cogent) reasons deriving from perception for thinking that perceptual beliefs about the physical world are true depend on inference from facts about these directly perceived mental or subjective entities, i.e., from facts about the character and contours of subjective sensory experience, to conclusions about physical or material objects.”
Thus, according to BonJour’s first thesis, what the subject has access to are representations of the world in one’s conscious states; there is no direct access to the external world. Bonjour does speak of “direct comparison or ‘confrontation’ between a conceptual description and the non-conceptual chunk of reality that it purports to describe,” but he is quick to add the important caveat: “Such a confrontation is only possible, to be sure, where the reality in question is itself a conscious state and where the description in question pertains to the conscious content of that very state.”
BonJour’s second thesis regarding the inference from sensory mental states to the conclusion of an external world is also important. Here BonJour must argue against Berkeleyan idealism. To engage the specter of idealism, BonJour makes a distinction between analog and digital explanations. As used by BonJour, an analog explanation attempts to explain the features of the world “by appeal directly to the basic features of the objects in the hypothesized world.” On the other hand, a digital explanation of the experience one is having is appeals,
“to the combination of (i) something like a representation of a world, together with (ii) some agent or mechanism that produces experience in perceivers like us in a way that mimics the experience that we would have if the represented world were actual and we were located in it, even though neither of these things is in fact the case.”
An analog explanation, in this context, would mean that the sensory experience in the subject is being produced by an objective, external world. Whereas the digital explanation would appeal to some distorting force or figure (i.e., a Cartesian demon or Berkeley’s God directly causing the sensory experiences without a corresponding external world).
From this distinction, BonJour argues that the digital explanation is less simple and by a principle “something like Ockham’s Razor” he argues that the analog explanation is the better one.
Problems with BonJour’s Indirect Representational Realism
BonJour’s position is fraught with two key internal tensions: (1) the problem of non-conceptual awareness and (2) no justified contact with the external world. To
understand (1) it will be important to understand a key dilemma that must be overcome. The dilemma has its roots with Wilfrid Sellars’ challenge regarding the “myth of the given” but its articulation can be found in BonJour himself. BonJour writes:
[T]he givenist is caught in a fundamental dilemma: if his intuitions or immediate apprehensions are construed as cognitive, then they will be both capable of giving justification and in need of it themselves; if they are non-cognitive, then they do not need justification but are also apparently incapable of providing it. This is at bottom why epistemological givenness is a myth.
With BonJour’s turn to foundationalism, he must answer this challenge. He seeks to overcome this dilemma in the following manner. Acknowledging the second horn of the dilemma, BonJour affirms that a non-conceptual (“non-cognitive”) phenomenon cannot stand in a logical relation, but it can be construed in a descriptive relation. He then argues that the non-conceptual phenomena in question here is of a special nature. BonJour’s key move is described in this manner:
But in the very special case we are concerned with, where the non-conceptual item being described is itself a conscious state, my suggestion is that one can be aware of its character via the constitutive or “built-in” awareness of content without the need for a further conceptual description and thereby be in a position to recognize that a belief about that state is correct without raising any further issue of justification.
This “built-in awareness” is, in his words, a “non-apperceptive awareness”—a non-cognitive awareness.
It is here that BonJour’s view runs into conceptual difficulty. What exactly is a non-cognitive awareness of a non-cognitive sensory content? As Steven Porter aptly notes,
It would seem that a non-conceptual grasp of the non-conceptual content of a non-conceptual state is a conceptually empty grasp of conceptually empty content of a conceptually empty state. This awareness is supposed to be conceptually described, but it is far from clear what the subject is aware of in a non-conceptual awareness of a non-conceptual state which can serve as the object of description.
In seeking to avoid the dilemma described above, BonJour has attempted to use a philosophical notion which appears epistemically vacuous. As Porter argues, “non-conceptual awareness is a contradiction in terms.” It would appear that conceptualized perceptual awareness cannot so easily be dismissed.
The second major problem for BonJour is that his view does not end up justifying belief in an external world. It is important to remember that BonJour is motivated by realist intuitions; internal sensory states are indicative of an external world of three-dimensional objects. The basic move here is that one can inferentially move from internal representational states to an objective external world. BonJour dispenses with alternative hypotheses (e.g., Berkeleyan idealism) by his use of analog explanations versus digital explanations. The analog explanation of an objective external world is preferred to the digital explanations since digital explanations are arbitrary and not as simple of explanations. In his critical analysis of BonJour, Steven Porter acknowledges that it is true that there is no reason to prefer digital explanation over another digital explanation and that it is true that is arbitrary to prefer a digital explanation over an analog explanation.
But Porter accurately assesses the situation when he notes the following:
But it does not follow from these two facts that we now possess a non-arbitrary reason to prefer the quasi-commonsensical hypothesis. Unless there is something in sense experience that calls for the quasi-commonsensical hypothesis over the others, the same arbitrariness would equally attach itself to the quasi-commonsensical hypothesis.
BonJour is seeking to argue that the reason to prefer the analogical explanation of an external world as the cause of one’s sensory states is that the phenomenology of one’s internal sensory states suggests an objective external world. But it is precisely here that BonJour’s representationalism cuts one off from the external world. What reason, given only one’s internal representational states, can there be given to prefer one explanation (analog) over another (digital)? Steven Porter uses a helpful example to show the philosophical problem inherent in BonJour’s view.
Let us suppose that we are watching a film and an image resembling the Golden Gate Bridge appears on the screen. Some philosophically attuned, inconsiderate movie whisperer poses the question as to whether the image is actual footage of the Golden Gate Bridge or whether it is a computer-generated image. In other words, did the Golden Gate Bridge itself cause the image on the film (i.e., an analog explanation) or did a computer cause the image (i.e., a digital explanation)? Of course, the image itself bears features which closely align with the features of the actual Golden Gate Bridge and which do not closely align with the features of a computer. But this fact does not give us any reason to prefer the explanation that the image we are seeing was caused by filming the actual Golden Gate Bridge over and against the explanation that the image was caused by a computer which was used to digitally represent the bridge. Indeed, there is nothing about the image of the Golden Gate Bridge which would lead us to prefer one explanation or the other if all that we have access to is the image and both explanations are in all other respects equal in their ability to account for the image. If, of course, we had independent access to the actual Golden Gate Bridge, we could compare the actual features to the features of the image on the screen, and perhaps determine whether the image is an analog or digital production. But if we only have access to the feature of the image, any preference for the analog or digital explanation based on those features alone would be arbitrary.
According to BonJour’s representational indirect realism there is no possibility of having direct access to reality by which to compare the features of the actual world with the features of one’s internal sensory states. All one has are mental representations of the external world and analog and digital explanations can equally account for this mental representation. Even if BonJour attempts to argue that his analog explanation is superior to the digital explanation of Berkeley due to simplicity, this argument can be overcome by noting that according to Berkeleyan idealism only one causal entity is postulated “while BonJour must postulate a multitude of physical objects, their properties, and the causal powers and relations essential to the quasi-commonsensical view.” Thus, BonJour is left without any rational preference for his analogical explanation. In the end, “BonJour’s position leaves us with justified beliefs about appearances but without justified beliefs about the external world.”
BonJour’s Caveat and Rejoinder
Granting realist intuitions and recognizing the internal tensions inherent in BonJour’s view of indirect representational realism, one might think that a reconsideration of direct realism would be in order. However, BonJour argues against such a move in the following manner:
No matter how difficult or even seemingly impossible the representationalist’s attempted inference from subjective experience to the material world may turn out to be, this is not enough by itself to show that direct realism provides a better epistemological alternative or indeed that it provides one at all.
BonJour argues that unless the direct realist can give a positive account of how perceptual beliefs are justified then the door is open for the representationalist view “as the only apparent contender in the field (phenomenalism aside), however allegedly problematic it may be.”
BonJour’s thought can be captured in the following manner:
(1) Realist intuitions motivate a belief in an objective external world composed of three-dimensional objects.
(2) Direct realism cannot provide a positive account for justified perceptual beliefs.
(3) No matter the difficulties, indirect representational realism is the only apparent contender in line with the realist intuitions of (1) above.
But the defender of direct realism could mirror this reasoning in the following manner:
(1) Realist intuitions motivate a belief in an objective external world composed of three-dimensional objects.
(4) Indirect representational realism cannot provide a positive account for justified perceptual beliefs.
(5) No matter the difficulties, direct realism is the only apparent contender in line with the realist intuitions of (1) above.
The defender of direct realism defends (4) by an appeal to the analysis offered above about the inherent contradictions and tensions in BonJour’s defense of his views. Thus, (5) follows and provides the impetus to reexamine the details in defense of direct realism.
Steven Porter accurately captures this dialectic. After summarizing the key problems with BonJour’s views, he writes, “These problems seem to offer insuperable difficulties for representationalism. But many have come at things the other way around. Starting with the natural view of direct realism they find defeaters of it, which lead them to the next best thing from the realist point of view—that is, representationalism.” But this dialectic, as set up by BonJour, should be challenged. Granting the realist intuitions of (1), which are affirmed by BonJour, and considering the deeply problematic tensions within BonJour’s indirect representational realism, this should motivate a reconsideration of direct realism. It is beyond the purview of this paper to attempt to this larger project; it has been the more modest project to clear the field of BonJour’s defense of representationalism.