1 Introduction

According to Burge (1988, 2011), cogito-like judgments (hereafter ‘cogito judgments’ for short), are paradigmatic examples of self-knowledge acquired in a direct, authoritative, and not merely empirical manner. Examples of this type of mental self-ascription include, I am now thinking, I [hereby] judge that Los Angeles is at the same latitude as North Africa, or, I [hereby] intend to go to the opera tonight.Footnote 1 Despite disagreements about their specific epistemic traits, it is widely accepted that, if we have privileged self-knowledge at all—i.e., knowledge of one’s own mental states that is epistemically different from and superior to the knowledge of others’ mental states—, cogito judgments are prime examples.Footnote 2

One model of self-knowledge that is extensively discussed in recent years is the transparency model. Transparency models are based on Evans’ (1982) remarks suggesting that an explanation of self-knowledge is to be found in relation to the so-called transparency procedure—i.e., answering the question whether we believe that p by answering the question whether p. Transparency models of self-knowledge hold that instances of privileged self-knowledge are formed (or achieved) by the application of the transparency procedure.

The guiding question of this paper is the following: granted that cogito judgments are paradigmatic cases of privileged self-knowledge, does the transparency procedure provide an explanation of why this is so?Footnote 3 The compatibilist debate between anti-individualism and self-knowledge during the late eighties and nineties discussed cogito judgments extensively. However, the subsequent debate that centered exclusively on self-knowledge has shifted its attention to other types of second-order judgments, such as self-ascriptions of standing beliefs. Whether transparency models explain how cogito judgments are instances of privileged self-knowledge remains an open question.

The paper develops as follows. Section 2 explains Burge’s notion of cogito judgments and identifies the main psychological characteristics of this type of thought. Section 3 explains the core claims of transparency accounts of self-knowledge and discusses the first set of criticisms of such accounts. Section 4 advances the main criticism of transparency models: namely, that the application of the transparency procedure does not produce cogito judgments. Since transparency models aim to explain privileged self-knowledge by explaining how the correspondent mental self-ascription is formed via the transparency procedure, I conclude that such models fail to explain how cogito judgments stand as privileged self-knowledge. Section 5 summarizes the paper’s arguments and briefly discusses their scope of application.

2 Cogito judgments

Burge has coined the term ‘cogito judgments’ after Descartes’ cogito (I am now thinking) to refer to a particular class of second-order judgments that represent what he then called ‘basic self-knowledge’. When he first discussed such a class of thoughts in his (1988), Burge’s objective was to argue that anti-individualism is compatible with privileged self-knowledge.Footnote 4 Burge has advanced an explanation of why we have privileged self-knowledge of cogito judgments in later works (see for example his 2011). For the purposes of this paper, it is not necessary to discuss whether Burge’s view on compatibilism has succeeded, nor is it required to agree with Burge’s explanation of self-knowledge.Footnote 5 What matters for this paper is the nature of those thoughts that Burge individuated when he termed the notion cogito judgments. I explore the nature of such thoughts in the remainder of this section.

Let us start with a few examples. Consider the following thoughts:

  1. (1):

    I am thinking.

  2. (2):

    I [hereby] judge that there will be no third world war.

Thought (1) is Descartes’ cogito. Thoughts like (2) have many similarities to thought (1), and thus can legitimately be called ‘cogito-like judgments’ (see Burge 1988). Both thoughts (1) and (2) present the following specific characteristics: (i) they are a type of judgment: they are occurrent thoughts with associated truth conditions; and (ii) they are a type of mental self-ascription: when making the judgment, the individual self-ascribes a mental predicate of a particular type, namely, a mental occurrence of the individual who makes the judgment. Trait (ii) is particularly important to distinguish proper cases of cogito judgments from other types of mental self-ascription that are not cogito judgments, such as the following thought:

  1. (3):

    I believe that there will be no third world war.

Thought (3) is a judgment by which the individual self-ascribes a mental predicate. However, assuming that thought (3) self-ascribes a standing belief, it does not display features (ii). The subject matter of (3) is a mental state of the individual who makes the judgment. However, according to feature (ii), a cogito judgment is about a mental occurrence taking place while the individual performs the judgment. Being about one’s own mental states is not sufficient to satisfy trait (ii). Cogito judgments concern present occurrences (Burge 2011, p. 209).Footnote 6

According to Sawyer (2002), failure to see why thought (3) is not a cogito judgment is the basis of many misplaced criticisms of Burge’s compatibilist thesis.Footnote 7 She presses on this issue in her defense of Burge’s views:

what distinguishes the cogito-like self-attributions from the non-cogito-like self-attributions is that in the latter case there are two distinct mental states—one standing, and the other occurrent. The cogito-like self-attributions, in contrast, are such that the first-order thought and the second-order judgment occur in the same mental act. (Sawyer 2002, p. 123)

As Sawyer highlights, the fact that a given mental self-attribution has two independent components shows that it is a not cogito judgment. Thought (3), for instance, is composed by both the mental act of judging that one believes p, and the belief state itself. However, a mental self-ascription composed by two occurrent mental states—as opposed to one occurrent and another standing—does not guarantee it to be a cogito judgment. Because both mental occurrences might be independently thought, they might not be part of the same mental act. Traits (i) and (ii) are insufficient to identify a cogito judgment. Consider the following case:

Imagine that someone, let’s say Paul, suddenly pays attention to his own reflection in the mirror. Based on the perception of his expressions of consternation, and knowing what such expressions mean in his case (but without introspecting on his feelings), Paul judges, I am thinking, again, of my pitiful life! If this is a possible case, it is a case in which a mental occurrence is correctly self-attributed (Paul is in fact thinking of his pitiful life), but such a mental occurrence is not thought within the same mental act that his mental self-ascription is thought. Paul’s self-ascriptive judgment is about one of his mental occurrences. However, the judgment and its subject matter are independent mental occurrences: they are merely simultaneously occurrent in Paul’s mind. His mental self-ascription is not a cogito judgment.

Therefore, if someone forms the following thought in a situation analogous to Paul’s, this person’s thought is not a cogito judgment:

  1. (4):

    I judge that there will be no third world war.

Thus, even if an individual were to self-ascribe an occurrent mental state, the thought would not be a cogito judgment if the individual were not thereby (as a result of having the thought) in the ascribed occurrent state. As Paul’s example shows, there are thoughts that might exhibit trait (ii)—be self-attributions of mental occurrences—but still be composed of independent mental occurrences. Thus, a further trait is required to identify cogito judgments. Cogito judgments:

iii. have a dual-level component: the second-order judgment and the ascribed mental occurrence both are part of a single thought. The self-ascribed mental occurrence is thought in and through the performance of the second-order judgment.

Trait (iii) is an essential feature of cogito judgments, which distinguishes them from other types of judgments containing self-ascription of mental occurrences. The term ‘in’ in the characterization of trait (iii) captures the relation of the first- and second-order thoughts to each other: the first-order thought is contained in the second-order thought. The term ‘through’ describes how first- and second-order thoughts are related by an individual’s act of thinking—that is, an individual thinks the first-order thought through the act of thinking the second-order one.Footnote 8 Both mental occurrences—of thinking and of judging that one is thinking— are part of the same mental act. In a cogito judgment, the individual both thinks the first-order mental occurrence and judges that she is thinking the thought in the same thought.

With trait (iii), we can distinguish between thoughts (2) and (4) more clearly. The former thought exhibits trait (iii); the latter, however, does not. Such a difference between the two thoughts is represented by the presence or absence of ‘[hereby]’ in the thought’s content. However, the inclusion of ‘[hereby]’ in the thought’s content does not mean that the individual herself employs the notion of ‘hereby’ when forming a cogito thought. The term ‘hereby’ represents the fact that in a cogito judgment, the subject matter and the judgment are part of the same thought.

Features (i)–(iii) identify cogito judgments as a distinctive type of thought by describing the psychological traits of such thoughts. Cogito judgments also present some distinctive epistemological traits, some of which are related to their psychological features. As mentioned previously, the epistemic thesis that cogito judgments count as privileged self-knowledge is widely accepted. According to a less prevalent but still relatively popular thesis, cogito judgments are self-verifying.Footnote 9 The latter thesis is central to Burge’s notion of cogito judgments. I will expand on it in the remainder of this section.

Burge holds that cogito judgments are special cases of privileged self-knowledge since they are self-verifying. However, Burge distinguishes between pure cogito judgments and impure cogito judgments based on their self-verifying aspect. According to Burge, only pure cogito judgments are logically self-verifying. Impure cogito judgments are performatively self-verifying.Footnote 10 Pure cogito judgments are self-verifying due to their self-referential form (Burge 1988, 2011; Sawyer 2002, p. 109). Take as examples of pure cogito judgments, thought (1) and the thought, I am thinking that writing takes time. It holds for both thoughts that:

by [their] reflexive, self-referential character, the content of the second-order judgment is logically locked (self-referentially) onto the first-order content which it both contains and takes as its subject matter. (Burge 1988, pp. 659–660).

The logic and meaning of the intentional thought content requires that if the content is thought, it is true (Burge 2011, p. 214).

Pure cogito judgments are thus infallible. ‘If one thinks a thought of that form, one thinks a truth’ (Burge 2011, p. 208).

Impure cogito judgments are not logically self-verifying due to their form. Instead, impure cogito judgments are performatively self-verifying (Burge 2003, p. 124). These are cogito judgments where ‘the intentional content does not strictly entail that a thinking of the thought [is] self-verifying, or even true’. We could conceive a case where an individual thinks, I [hereby] judge that there will be no third world war, but fails to judge that there will be no third world war. According to Burge, such cases are abnormal, but are possible. Although normal occurrences of cogito judgments are performatively self-verifying, they are not immune to error. In his words:

In cases of reflexive performatives that are not pure cogito cases—like I hereby judge that Socrates drank some hemlock or I hereby intend to give to Oxfam—the self-verification is not formally guaranteed merely by thinking the thought. But their truth is guaranteed, in normal circumstances, by the clearly understood performance of the act. (Burge 2003, pp. 135–136)

In impure cogito cases (e.g. I [hereby] judge that writing requires concentration), the indicated lower-level mode (e.g. judgment) is not entailed to be the mode of the content cited by the underlining. In such a cogito thought, one could judge that one is judging the lower-level content, and be mistaken about one’s making a judgment. [...]. Such cases are pathological misuses of the cogito form of thought. (Burge 2011, p. 208)

The thesis that cogito judgments are self-verifying, either logically or performatively, has been challenged during the compatibilist debate (see Gallois 1996; Bernecker 1996 and Goldberg 2000). Even so, nowadays many philosophers of self-knowledge seem to accept such a thesis.Footnote 11 In any case, what matters for this paper’s arguments is the idea that cogito judgments are a particular class of mental self-ascriptions that present certain specific psychological features and are epistemically special. So, for my purposes, Burge’s distinction between pure and impure cogito judgments can be understood in a schematic way as follows:

In pure cogito judgments, there is no specification of the type of mental occurrence that is the judgment’s subject matter. Neither thought (1) nor the thought, I am thinking that writing takes time, specifies the type of mental occurrence its thinker is in. In contrast, an impure cogito judgment specifies a mode of thinking as part of that judgment’s content. In thinking thought (2), the individual self-ascribes a judgment. But an impure cogito judgment could be about any other type of mental occurrence. Although cogito judgments concern present mental occurrences, such occurrences themselves need not be judgments (Burge 1996, 2003). The following is another example of an impure cogito judgment:

  1. (5)

    I [hereby] intend to go to the opera tonight.

This paper takes pure cogito judgment (1) and impure cogito judgments (2) and (5) as its primary working examples. Any unified model of self-knowledge that aims to explain privileged self-knowledge should be able to explain how an individual has the privileged self-knowledge expressed by these three thoughts.Footnote 12 I turn next to the question of whether a transparency model of self-knowledge can explain how cogito judgments (1), (2), and (5) stand as privileged self-knowledge by examining whether such thoughts can be generated by the transparency procedure.

3 Transparency models of self-knowledge

Transparency models are based on Evans’ (1982) remarks on self-knowledge, as exemplified by the following much-cited passage:

I get myself in a position to answer the question whether I believe that p by putting into operation whatever procedure I have for answering the question whether p. [...] If a judging subject applies this procedure [my emphasis], then necessarily he will gain knowledge of one of his own mental states (Evans 1982, p. 225).

According to the mentioned procedure for gaining self-knowledge, one answers the question of whether one believes that p by answering the question, whether p. This procedure has been called the ‘transparency procedure’ (Byrne 2005, 2011a). Alternatively, the condition met by the procedure has been called ‘the transparency condition’ (Moran 2001).Footnote 13 A transparency model is built on the idea that there is an epistemically relevant relationship between the two questions and corresponding answers that compose the transparency procedure. The application of the transparency procedure, it is argued, yields self-knowledge.

Evans (1982) has explicitly given a very brief treatment of self-knowledge; he has not pursued a model based on transparency. However, many inspired by Evans—e.g., Moran (2001), Byrne (2005, (2011a), Boyle (2011), Fernández (2003, (2013), and others—have formulated proper models of self-knowledge. In what follows, I first explain Byrne’s transparency model and raise the first set of criticisms against it. After that, I discuss my main and general criticism of transparency models: namely, that the transparency procedure does not generate cogito judgments.

3.1 Byrne’s model and the first set of criticisms

Cassam (2015) suggests that the most natural and reasonable interpretation of the transparency procedure is one according to which its application generates indirect mental self-ascriptions. The transparency procedure regards a relation between answers to two different questions: a question about p and a question about whether one believes that p. Thus, it is natural to think that the transparency procedure encompasses a transition between an answer to the former question and an answer to the latter. If this is so, then applying the procedure generates indirect self-knowledge—and it is reasonable to suppose that the aforementioned transition is inferential. In Cassam’s words:

How can the self-knowledge acquired by putting into operation a procedure for answering a different question be anything other than indirect? There must be some kind of transition from answering the question whether p to answering the question whether you believe that p, but knowledge that is genuinely direct would involve no such mental transition. (Cassam 2015, p. 4)

Cassam (2014, (2015), who does not defend transparency models, holds that a lot of self-knowledge is indirect and inferential. What is puzzling, he seems to suggest, is the insistence that, nevertheless, a transparency model can generate direct, non-inferential self-knowledge.

However, though Byrne (2005, (2011a) supports a transparency model, he is not committed to such a puzzling position.Footnote 14 According to Byrne (2011a), the transparency procedure consists in inferential reasoning from a premise about the world to facts about one’s own mind. In reference to Evans’ famous example, Byrne suggests that an individual is able to self-ascribe the belief that there is not going to be a third world war via an inference from his own judgment that there is not going to be a third world war. Byrne specifies this procedure in terms of the ‘doxastic schema’ (2011a), a rule that we apply to gain self-knowledge:Footnote 15

figure a

According to Byrne, following the doxastic schema yields self-knowledge because the inference involved in the schema has certain qualities that warrant its conclusion. He defends the doxastic schema as strongly self-verifying: ‘if one reasons in accordance with the doxastic schema, and infers that one believes that p from the premise that p, then one’s second-order belief is true, because inference from a premise entails belief in that premise’ (Byrne 2011a, p. 206).

The special characteristics of the doxastic schema, according to Byrne, explain privileged access and peculiar access, two key elements to be explained by models of self-knowledge, cf. Byrne (2011a, p. 202). Byrne characterizes privileged access as the higher probability that first-personal beliefs have to amount to knowledge in comparison to beliefs about others’ mental states. If the doxastic schema is strongly self-verifying, its application has a high probability of generating knowledge. Peculiar access, according to Byrne, refers to the difference between the methods used to gain self-knowledge and those used to gain knowledge of other people’s minds. The doxastic schema only works in the first-person case: ‘Inferring that André believes that p from the premise that p will often lead one astray’ (Byrne 2011a, p. 207).

Several criticisms have been raised in response to Byrne’s model. Many of these criticisms target the quality of the inference employed in the doxastic schema. For example, Boyle (2011) points out that this inference is neither deductively valid nor inductively strong. Valaris (2011) objects that, in contrast to any other rule of inference, the doxastic schema’s inference cannot be deployed in hypothetical reasoning. In hypothetical reasoning, the individual need not believe in the premise in order to draw an inference. The individual only needs to suppose the premise to be true. However, the doxastic schema only works if the individual believes in the premise.Footnote 16

My first criticism of transparency models does not target the quality of the inference involved in the transparency procedure as conceived by Byrne. Instead, my criticism targets the very fact that the transparency procedure generates indirect or inferential self-knowledge. According to Burge, cogito judgments amount to non-inferential self-knowledge. They are non-inferentially formed and their epistemic warrant does not rely on inferences. Thus, given Byrne’s model (and possible variants of it), the transparency procedure cannot explain how an individual forms cogito judgments. In what follows, I expand on this argument. I refer to models that are based on transparency and that hold that a belief self-ascription involves an inference from the individual’s take on p as ‘Byrne-like transparency models’.

Trait (iii) is a distinctive aspect of cogito judgments (see Sect. 2). Cogito judgments are self-reflexive and have a dual-level component, in that the individual thinks the first-order mental occurrence in and through judging that she does so. According to Burge, this psychological aspect of cogito judgments suffices to make the self-ascription a non-inferential one, at both etiological and epistemic levels. Burge says:

The structure of these judgments [pure and impure cogito judgments] shows clearly that they are not inferential. When I judge I am thinking, or I [hereby] judge that Brahms is greater than Chabier, or I intend to take the metro, the judgment is reflective in a way that precludes individual-level inference. The judgment about the psychological state has, as a constituent part, the psychological state instance that the judgment is about. Judgment and subject matter are part of a single thought. (Burge 2011, p. 184).

According to Burge, the dual-level component aspect of cogito judgments evinces that the thought has not been inferentially formed. Since the first-order level thought—e.g., thinking or judging that p—is thought through its self-ascription, the first-order thought could not be used by the person as evidence, in an inferential reasoning, to conclude that she is thinking so. This is the reason why Burge says that the reflective aspect of a cogito judgment precludes individual-level inference.Footnote 17 In cases of cogito judgments, the individual does not first grasp that she is thinking, and then conclude that she is in such a mental state. Nor does the person think the first-order thought, and then judge that she is thinking such a thought. Both thoughts are part of the same mental act.

According to Burge, a cogito judgment is not inferentially warranted either. As briefly discussed in Section (2), Burge holds that cogito judgments are self-verifying. If someone thinks a pure cogito judgment, she thinks a truth. In cases of impure cogito judgments, there is some room for mistakes, if only very little (namely, only in cases of psychological abnormalities). Being self-verifying is arguably one epistemic aspect of cogito judgments due to their psychological form. Thus the nature of cogito judgments shows that they stand as non-inferential self-knowledge (whatever one’s epistemic explanation of this type of warrant might be).Footnote 18

Byrne-like transparency models generate inferential mental self-ascriptions that allegedly stand as self-knowledge. The mental self-ascriptions generated by the application of the transparency procedure are inferences from a premise about the world to a conclusion about one’s mind. However, the traits that identify the type of thought correspondent to a cogito judgment also imply that a cogito judgment is non-inferentially formed or warranted. Thus, Byrne-like transparency models cannot explain privileged instances of cogito judgments. And if Cassam’s suggestion is accurate—if the only reasonable way to make sense of the transparency procedure is by understanding it as generating indirect, inferential self-ascriptions—then the only conclusion is that transparency models in general cannot explain how cogito judgments stand as instances of privileged self-knowledge.

One way to reply to the above argument is by resisting Cassam’s suggestion (even if one accepts that Byrne’s model cannot explain how cogito judgments count as privileged self-knowledge). As a matter of fact, there are models of transparency intended to be non-inferential. Thus, the previous argument does not seem to hold as a general criticism of the explanatory power of transparency models regarding cogito judgments.Footnote 19 Pace Cassam, one could insist that the application of the transparency procedure does not generate inferential self-knowledge. Works by Moran (2001), Boyle (2011), and Fernández (2003, 2013) advance this conception of the transparency procedure.

Moran (2001), for example, advances a non-inferentialist picture of self-knowledge that incorporates transparency. He suggests that, ‘a statement of one’s belief about X is said to obey the Transparency Condition when the statement is made by consideration of the facts about X itself’ (Moran 2001, p. 101). Moran holds that such a condition relates to self-knowledge because in considering the reasons for X, one makes up one’s mind about X. Deliberation is a central element in Moran’s view of self-knowledge. Moran does not explicitly specify the nature of the transition between the two answers that compose the transparency procedure. But his proposed idea suggests that in deliberating whether p, and thereby making up one’s mind about p, one gains knowledge of one’s own thoughts regarding p.Footnote 20

Given the existence of models that, like Moran’s, aim to be non-inferential, the argument presented above cannot conclusively settle the question driving this paper: namely, whether a transparency account of self-knowledge can explain how cogito judgments amount to privileged self-knowledge. In what follows, I turn to a general criticism of the transparency model that targets both inferentialist and non-inferentialist interpretations of the transparency procedure. My criticism targets the idea shared by any transparency model: the idea that we self-ascribe a belief whether p by answering the question whether p. I argue that the application of the transparency procedure does not generate thoughts with the dual-level component trait (iii), and thus, does not generate cogito judgments.

4 Second set of criticisms

The core idea shared by any transparency model of self-knowledge is that privileged self-knowledge is achieved, or formed, by the application of the transparency procedure. The procedure says that we answer the question whether we believe that p (i.e., we self-ascribe beliefs) by answering the question whether p. Applying such a procedure, it is claimed, yields privileged self-knowledge. Let me first raise a series of worries for transparency accounts regarding their capability to generate cogito judgments via such a procedure.

One immediate difficulty for transparency models to generate a cogito judgment is that the transparency procedure traditionally concerns self-ascription of standing beliefs.Footnote 21 However, as discussed in Sect. 2, cogito judgments concern mental occurrences. Thoughts of the form (3) I believe that there will be no third world war are not cogito judgments. A cogito judgment needs to be about an occurrent mental thought: e.g., (2) I [hereby] judge that there will be no third world war. Thus, in its original form, the transparency procedure cannot generate cogito judgments—including the working examples (1), (2) or (5)—since each of them self-ascribes mental occurrences.

One could reply, however, that the transparency procedure can be easily modified to account for the self-attribution of occurrent mental states, like judgments, as well as of standing beliefs.Footnote 22 For example, one modified version of the transparency procedure might take the following form: we answer the question whether we judge whether p by answering the question whether p. In fact, some criticisms of the transparency procedure seem to support this kind of alternative. Such criticisms suggest that in answering the question whether p, one judges whether p; thus, when applying the transparency procedure, the individual does not gain knowledge of a standing belief (a belief that perhaps the individual wanted to know about in the first place). Rather, she gains knowledge of a newly formed state—a judgment, for example (see Gertler 2011b; Lawlor 2003). One could, thus, insist that if the transparency procedure explains anything at all, it only explains the kind of self-knowledge involved in self-ascription of judgments. And this is sufficient to generate self-knowledge involved in cogito judgments.

However, such a modification of the transparency procedure is insufficient to explain the formation of cogito judgments. Self-ascription of a judgment is sufficient only to generate thoughts like (4) I judge that there will be no third world war. However, if (4) does not have a dual-level component, then thought (4) is not a cogito judgment. (I explored the difference between thoughts (2) and (4) in Sect. 2.)Footnote 23 Moreover, a cogito judgment does not merely involve self-ascription of an occurrent judgment. Self-ascription of a judgment is necessary to generate thoughts like (2) I [hereby] judge that there will be no third world war, but it is not necessary to generate thoughts like (1) and (5).

Cogito judgments can be about many different types of mental occurrences. Thus, as discussed, the modification of the transparency procedure in terms of self-ascription of judgments clearly does not generate cogito judgments about other types of mental occurrences. Still, one could insist, further modifications of the transparency procedure are possible in order to generate more diverse kinds of thoughts. Before I turn to my general criticism of transparency, I briefly discuss some further worries related to such a maneuver. For that, let us recall the three working examples of cogito judgments:

  • (1) I am thinking.

  • (2) I [hereby] judge that there will be no third world war.

  • (5) I [hereby] intend to go to the opera tonight.

Consider thought (5). In order to generate such a thought, the transparency procedure would need to be such that it could prescribe the self-ascription of an intention merely via consideration of the intention’s subject matter. However, it is unclear how one could successfully do this. It is unclear what kinds of considerations about the intentions’ subject matter—other than intending to \(\upphi \) itself—could possibly generate a corresponding intention that is then self-ascribed by the individual.

One might insist that considerations on the desirability of doing p constitute a good candidate for reformulating the transparency procedure regarding intentions. However, deciding whether a given course of action is desirable does not clearly generate an intention towards p. Deliberating whether it is desirable to take a break now does not need to generate an intention to take a break now. Thus, settling this issue would not shed any light on whether I intend to take a break now, since it is possible that no intention has been formed in the first place. Although not impossible, modifications to the transparency procedure do not seem to apply very well to self-knowledge involved in cogito judgments about occurrent intentions.

Next, consider thought (1). A possible modification to the transparency procedure in order for it to generate the mental self-ascription involved in (1) might have the following form: we answer the question whether we are thinking by answering the question whether p.Footnote 24 Such a procedure might generate self-knowledge; an individual who is answering the question whether p is thinking. However, this is a rare and unlikely version of the procedure: after all, our knowledge of our mental activity is more fine-grained than merely knowing that we are thinking when we are carrying on different mental activities. Furthermore, it is not obvious that the generated self-ascriptions are in fact cogito judgments. In what follows, I raise my general criticism and argue that such self-ascriptions are not examples of cogito judgments. The application of the transparency procedure, independent of its various versions, does not clearly generate thoughts with a dual-level component feature.

A cogito judgment is a thought that the individual thinks in the following way: she thinks the ascribed thought (e.g., an occurrent judgment, an occurrent intention, or the mere activity of thinking) in and through judging that she does so. This is a specific aspect of cogito judgments captured by trait (iii). The transparency procedure, however, does not predict that the thought produced by the application of the procedure has such a characteristic, nor does the procedure seem to have resources to do it.

In Sect. 3.1, based on Cassam’s observations, it was suggested that the most plausible understanding of the transparency procedure is the one that conceives it as generating indirect, inferential mental self-ascriptions. However, if this is so, such a mental self-ascription is not a cogito judgment (see also Sect. 3.1). The form of a cogito judgment precludes it from being inferentially formed. The self-reflexive character of a cogito judgment, captured by trait (iii), precludes individual-level inference. The individual thinks the first-order thought by performing the judgment about that thought.Footnote 25 In contrast, the inferential reading of the transparency procedure seems to suggest that an individual first thinks the first-order thought and only later ascribes that thought to herself. However, in a cogito judgment, the individual thinks both thoughts in the same mental act. The inferentialist version of the transparency procedure fails to produce cogito judgments.

On the non-inferentialist version of the transparency procedure, the generated mental self-ascription does not seem to present trait (iii) either. The application of the transparency procedure seems to indicate that in self-ascribing a given mental predicate, the individual thinks only about the subject matter of her first-order thought. If there is no transition between the two answers involved in the transparency procedure, the individual thinks about p when self-ascribing mental state S.Footnote 26 But thinking only about the subject matter of one’s ascribed thoughts (i.e., only thinking about p) is insufficient for a thought to be a cogito judgment. A cogito judgment is a thought that involves thinking also about the self-ascribed mental occurrence.Footnote 27

This interpretation of the type of thought generated by the application of the transparency procedure, if understood non-inferentially, seems to be in line with Evans’ remarks. When Evans briefly discusses self-knowledge, his main motivation is to conceive an alternate picture of self-knowledge to the so-called Cartesian picture. He explicitly aims to avoid the inner observation picture of self-knowledge. He then suggests that, ‘in making a self-ascription of belief, one’s eyes are, so to speak, or occasionally literally, directed outward—upon the world’ (Evans 1982, p. 225). This much-cited passage has fed many intuitions underlying transparency models.

However, ‘directing one’s eyes outward’ does not seem to be enough to give us the type of thoughts that consist in cogito judgments. Cogito judgments require that the individual’s eyes are, so to speak, directed both outwards and inwards simultaneously. In a cogito judgment, one not only thinks the thought that is ascribed; one also thinks the very self-ascription. In this sense, in the attempt to avoid the inner observation view of self-knowledge, Evans has apparently left us without resources to understand cogito judgments. Denying that knowing one’s own thoughts is a type of inner perception does not require the denial that one can direct one’s eyes inwards. This is so precisely because one can conceive self-knowledge outside the (inner-outer) sensory approach to self-knowledge. Directing one’s eyes inwards or outwards is just a metaphor. But if one wants to insist on the metaphor, one needs to appeal to both inward and outward directions in order to accommodate the dual-level component presented by cogito judgments. Non-perceptual models of self-knowledge can be compatible with the idea that we can form cogito judgments and that they stand as privileged self-knowledge.Footnote 28

5 Concluding remarks

This paper has argued that transparency models of self-knowledge cannot explain how cogito judgments stand as instances of privileged self-knowledge. Transparency models predict that mental self-ascriptions that amount to privileged self-knowledge are produced by the application of the transparency procedure. However, the transparency procedure cannot generate cogito judgments. On an inferentialist understanding of transparency, mental self-ascriptions are inferentially generated. However, the form of cogito judgments precludes them from being inferential. Moreover, the inferential model seems to predict that the individual first thinks the first-order level thought and only later thinks the self-ascription, which does not match the dual-level component feature of cogito judgments. On the other hand, in a non-inferentialist picture of transparency, the transparency procedure does not seem to generate thoughts with a dual-level component either. In self-ascribing a mental state via the application of the transparency procedure, the individual thinks only the ascribed state. However, it is part of what identifies cogito judgments that they have a dual-level component. In a cogito judgment, the individual thinks the first-order thought in and through thinking that she thinks the ascribed thought.

The conclusion of this paper’s argument raises a criticism of transparency models of self-knowledge that targets their explanatory power. It concludes that such models cannot explain the formation of cogito judgments, and thus cannot explain one particular class of privileged self-knowledge. One might raise doubts, however, about the importance of such results. One might insist that this conclusion is too narrow to deserve attention: cogito judgments just add to the long list of mental states that do not succumb to transparency, which is not particularly surprising. One might even insist that transparency theorists would emphasize that they did not intend their theory to cover all self-knowledge. Thus, it should not be a problem that cogito judgments are excluded from their models.

Such attempts to resist the results achieved by this work, however, are misguided. On the one hand, showing the explanatory limits of a given model is a relevant result, no matter if the model has other limitations that have already been pointed out. If transparency models are unable to explain the self-knowledge involved in cogito judgments, this result per se deserves attention. Such models are still very influential. On the other hand, if one insists on the idea that transparency models have never intended to give a unified model of self-knowledge that includes cogito judgments (see ft. 12), then we should be provided with some evidence that this is in fact the case. However, there is no explicit delimitation of transparency models in relation to cogito judgments. Furthermore, there are some transparency models, which do aim at a broad explanation of self-knowledge such as the models developed by Byrne (2005, (2011a, (2011b) and Fernández (2003, (2013).

Additionally, there is an independent (and perhaps stronger) reason to include cogito judgments within the items to be explained within our theories of self-knowledge. As I mentioned earlier, cogito judgments are accepted to be paradigmatic cases of privileged self-knowledge.Footnote 29 Moreover, for many philosophers, understanding the type of self-knowledge involved in cogito judgments is crucial for our understanding of the general phenomenon of self-knowledge. Descartes, whose reflections were based on the cogito, is among such philosophers. Burge is another example. According to Burge (2013), understanding the traits of cogito judgments and the cognitive capacities required for and employed in the formation of such judgments is part of the general explanation of our capacity for self-knowledge. This picture is reflected in Burge’s earlier writings when he calls this class of judgments ‘basic self-knowledge’. And more recently, it is elaborated as follows:

Although cogito cases are very special cases, they contain, in germ, many of the key features that are central to and constitutive of all types of authoritative self-knowledge. Cogito instances are special and peculiar in their self-evidence, self-justification, and self-verification. But they point beyond themselves in other respects: their non-inferential immediacy; their first-person character; their use of canonical specification of contents that requires understanding of the referred-to contents as well as the specification; their use of a betokening understanding of the attitude mode; their reliance on inter-level representational relations that are routes for preserving warrant; their immunity to brute error; their being warranted through understanding. (Burge 2013, p. 25).

This paper concludes that transparency models of self-knowledge do not have the resources to explain how we have basic self-knowledge, to employ Burge’s terminology. It thus raises some serious doubts as to whether transparency models can survive without being able to explain such a paradigmatic class of self-knowledge.