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Author Information: Michel Croce, University of Edinburgh,

Croce, Michel. “Objective Expertise and Functionalist Constraints.” Social Epistemology Review and Reply Collective 8, no. 5 (2019): 25-35.

The pdf of the article gives specific page references. This essay is published in two separate posts, the first of which is available at this link. Shortlink:

Pictured here, an artist’s rendering of Christian Quast and his uncle who can do plumbing. Some liberties in representation have been taken.
Image by Natalie Bowers via Flickr / Creative Commons


. . . . In a word, Quast cannot have his cake and eat it too.

On the Fundamental Ingredients of Expertise

The balanced account suffers from a second problem pertaining to the aforementioned ingredients of expertise, namely primary competence, secondary competence, and intellectual virtues (see also Hardwig 1994, 92). According to ExpertF-C-M, expertise requires an undefeated disposition to fulfill a particular service function adequately at the moment of assessment.

In turn, all three ingredients feature in the undefeated-disposition requirement, in that lacking any of them defeats the attribution of expertise. In this section, I demonstrate that this account is too strong, as it poses unduly restrictive requirements for one to be an expert. In particular, I worry about secondary competence and what Quast calls “intellectually virtuous character” as necessary components of expertise.

Let us consider secondary, or explanatory, competence first: the ability to give an account of one’s performances. We have already seen that on the balanced account, failing to display secondary competence defeats expertise because, as the wine-consultant case shows, we expect from experts that they can give us explanations regarding their services.

However, the plausibility of this understanding of expertise entirely rests on the specifics of the example Quast introduces. In the proposed case, a subject challenges the wine consultant’s evaluation because of its inconsistency with the subject’s expectations and the testimony of the former owner of the cellar. Notice, though, that the disposition to account for one’s performances—in particular, to laypeople—requires an entirely different set of abilities than the ones necessary to fulfill one’s service function successfully. The former set includes such intellectual virtues as a sensitivity to a layperson’s epistemic resources, communicative clarity, intellectual generosity, and possibly other abilities.[1]

A civil engineer could well possess primary competence in demolishing or rebuilding a bridge and the ability to discuss it with other experts yet lack the competence to provide effective explanations of their techniques, strategies, and related risks to a lay audience. Something similar happens in sports. A lot of amazing athletes can do extremely complicated things that are generally out of reach for most human beings, yet they may not be able properly to account for what they do.

They can show you these actions hundreds of times, but if you ask them to tell you how they do that, you might feel extremely disappointed or confused by their explanations. This is why not all the greatest sport heroes are good coaches and not all the best civil engineers can effectively account for what they do to a lay audience. For as I will stress in the final section, primary competence and secondary competence are, in a sense, different kinds of expertise.

A Private or People’s Expertise

The required combination of these competences for a proper understanding of expertise on Quast’s view is somewhat surprising if we bear in mind that he wants to confer objective expertise to “private experts,” who can offer us quite specific services such as fixing some leaky drain pipes. In Quast’s private-expert case, it seems odd to require that Christian’s father-in-law be able to give an account of how he is going to fix the pipe in order to fulfill the function of a private expert.

For, on the one hand, the relevant contrast class includes two individuals, namely Christian and his wife, who—as we are told—are both inexperienced in these kinds of handicraft matters. On the other, Christian’s father-in-law might even lack the necessary abilities properly to explain how he will repair the pipes.

These considerations make it hard to see why giving an appropriate account of the provided service should be necessary for Christian’s father-in-law to be an expert on a functionalist view that aims at being in a position to grant private experts objective expertise.

Consider now the other ingredient of expertise on Quast’s view, namely one’s intellectual character in the sense of their willingness to manifest primary and secondary competence when appropriate. The above considerations about the intellectual abilities required for one to deliver proper explanations of one’s service should provide sufficient reason to consider possession of an intellectually virtuous character as a relevant component of the competences required for one to be an expert rather than as mere willingness to manifest such competences.[2] Thus, in the remainder of this critical notice I shall simply tackle the willingness component and, in particular, the willingness to manifest secondary competence when appropriate.

Suppose a physicist, call him Ivory Tower, is completely reluctant to share anything related to his work with people, especially laypersons. Ivory’s social interactions are limited to what’s required for him to keep his position at his institution. Ivory works in optics, and, in particular, he is developing reliable ways to see through walls by using special cameras. More specifically, he is working on a project that would allow rescue teams to individuate people when the terrain is dangerous and would allow cars to avoid accidents by identifying obstacles or vehicles from around the corner.

Quast’s view commits us to conclude that Ivory lacks expertise in optics or whatever more specific subfield he is working in because he fails to display the required willingness to give an account of his performances when appropriate. This verdict is unsatisfying in general, as it strikes us as evident that Ivory’s extremely sophisticated work in optics should suffice to grant him the status of an expert.

Furthermore, the verdict is unsatisfying even from the perspective of a functionalist account of expertise, as Quast’s purports to be. For despite lacking willingness to explain his work to others, Ivory is surely serving laypeople’s needs. He does so by attempting to solve problems in optics and providing the community with new resources rather than by making himself accountable for his work to a lay audience, but this merely amounts to another relevant way an expert can serve their community, as I will argue in the next section. Thus, since there seem to be no good reasons to deny Ivory the expertise he has acquired through years of intense work, we can conclude that the willingness to manifest secondary competence is not a necessary condition for one to possess expertise.

Two allegedly key ingredients in Quast’s account of expertise, namely secondary competence and the willingness to manifest that competence when appropriate, are less fundamental than one might have initially thought. In fact, they should not be considered necessary requirements for one to be an expert in some domain. In the final section, I shall explore some implications of the considerations offered so far, with the aim of contributing to reaching a better understanding of the notion of, and the role of, an expert in the context of the society we currently live in.

Expertise Today: Toward an Objective Approach

Many reputable scholars characterize the age we live in as a post-truth era (Fuller 2018) in which the very idea of expertise is dead (Nichols 2017), as it has been replaced by a free market in information and self-attributed competences that takes place in the blogosphere (Coady 2012), the internet (Lynch 2016), and more recently social media, where fake news easily proliferates (Vosoughi et al. 2018). As Nichols thoroughly describes (see §7), we’re surrounded by a gigantic amount of news and by experts who are more and more specialized in any domain, and yet we know less than before and distrust expertise.

If there is one thing epistemologists can surely do—in fact, must do—to counteract the advance of post-truth thinking in our society, it is attempting to reach a better understanding of the notion of expertise. Such a service would not solve all the problems, yet it would at least contribute to indicating where genuine competence lies and who has it and therefore to marking a neater distinction between experts and charlatans. This is why I am largely sympathetic to Quast’s efforts, as it is clear that we need experts now more than ever.

It is for the same reasons, though, that I believe Quast’s balanced account of expertise is on the wrong track. In this final section, I make two points to suggest how we should redirect our search for a better account of expertise. First, I explain why we need a more objective account of expertise. Second, I suggest an alternative way to look at the service experts are supposed to fulfill in our communities.

The first consideration is called for by the peculiar situation we’re currently in. As I showed in §1, the functionalist spirit of the balanced account of expertise ends up undermining the very notion of objective expertise that Goldman has in mind when he argues that “being an expert is not simply a matter of veritistic superiority to most of the community. Some non-comparative threshold of veritistic attainment must be reached” (2001, 91).

Since Goldman admits that it might be difficult to determine where the bar has to be set, one might suspect the balanced account has a clear advantage over a purely objective approach to expertise, as on Quast’s view being suitably disposed and willing to serve the need of a relevant contrast class is all it takes for one to achieve the status of an expert.

This is a mistake though because it is far from obvious that a novice or group of novices can reliably ascribe expertise to someone who is supposed to be more competent than they are in a domain. In other words, the more context sensitive and subject sensitive is the process of expertise attribution, the higher is the risk of misplacing trust in non-experts. This is an unwelcome consequence of the balanced account—a consequence that makes the account lose its alleged positional advantage over objective approaches to expertise.

Against the Balanced Account

My proposed epistemic consideration against the balanced account of expertise can be supported by a further reason for favoring an objective account of expertise—namely, the fact that this latter account provides a community with robust criteria for assessing who is to be trusted to deliver a service in any field. This translates into a practical advantage for the entire community, which can create ways to signal who and where experts are[3] and therefore help lay members navigate the current ocean of self-attributed competences and epistemic egalitarian ideals. Needless to say, this consideration does not suffice as a remedy against the detrimental effects of post-truth thinking; yet it should at least offer motivation for directing our efforts toward an objective approach to expertise rather than a “balanced” one.

The second consideration brings the distinction between primary and secondary competence back on stage. In a realist, or objective, approach, the attribution of expertise cannot depend on the specific function one is required to fulfill relative to some contrast class in a particular context. Some handy craftsperson who has learned how to repair the very same leaky drain pipe at one’s home over the years does not count as an expert, because their competence is too limited and unreliable in similar situations in which a proficient plumber is expected to succeed.

Yet, an objective account is in a position to distinguish at least two broad kinds of expertise, namely the expertise of those who can reliably provide some sort of service in a domain and those who can explain what’s going on in a domain to others, especially laypeople. Call the former domain-oriented expertise and the latter novice-oriented expertise.

The set of domain-oriented experts includes reliable plumbers, scuba divers, wine tasters, lawyers, doctors, musicians, and scholars, among others. Their expertise consists of an ability to serve the needs of a community in their respective domains—that is, what Quast calls primary competence. In particular, the function of domain-oriented experts encompasses two main roles:

(i) that of expert practitioners, who address specific needs of the community members—for example, repairing leaky drain pipes, maintaining or restoring health, and performing jazz music; and

(ii) that of expert innovators, whose job is to improve the community’s capacity to serve the needs of their members by developing new resources, advancing the techniques, or carrying out groundbreaking research in a domain—for example, creating more-robust drain pipes, developing new therapies against cancer, or composing jazz music.

As should be evident, both functions demand that the subject have intellectual or practical dispositions to reliably deliver the required services. However, these roles are quite different, and not all expert practitioners are also expert innovators, and vice versa. Thus, any individual who fulfills either role possesses domain-oriented expertise.

In contrast, the set of novice-oriented experts includes those individuals who have secondary competence, namely the capacity to help laypeople understand the services domain-oriented experts provide to the community. This set typically includes teachers and science popularizers, but all domain-oriented experts who possess a sufficient amount of secondary competence may have novice-oriented expertise too.

However, possessing domain-oriented expertise does not ensure that one also has novice-oriented expertise, as the wine-consultant and civil-engineer cases discussed in §2 demonstrate. For this service activates a different set of dispositions—namely, novice-oriented abilities, which are not strictly necessary for one to possess domain-oriented expertise.


The proposed categorization of the two main services experts fulfill in a community allows us to take into due consideration the functionalist element of expertise without giving up on an objective perspective that grants conceptual primacy to the dispositional component of expertise. We all wish to be surrounded by subjects who can offer clear explanations of how they are going to satisfy our needs, but we’d better also have an account that explains why some experts greatly serve the domain-oriented needs of our community without being able to serve the novice-oriented ones.

This is not only important for us to improve the explanatory power of our definition of expertise, but also for a community to evaluate how to deploy its resources to ensure that both kinds of experts are in a suitable position to fulfill their respective service function.

This reply to Quast’s insightful paper aimed at shedding light on some limits of his account and sketching a strategy to accept Quast’s suggestions about the necessary balance between a dispositional dimension and a functionalist dimension of expertise within an objective approach. Far from offering a comprehensive alternative account, I hope this reply can encourage others to address the important issues Quast has raised in his paper and can contribute to improving our understanding of the notion of expertise.

Contact details:


Coady, David. 2012. What to Believe Now: Applying Epistemology to Contemporary Issues. Malden (MA): Wiley-Blackwell.

Croce, Michel. 2019. “On What It Takes to Be An Expert.” The Philosophical Quarterly 69(274): 1-21.

Fuller, Steve. Post-Truth: Knowledge as A Power Game. London: Anthem Press.

Goldman, Alvin. 2001. “Experts: Which Ones Should You Trust?” Philosophy and Phenomenological Research 63: 85-110.

Lynch, Michael. 2016. The Internet of Us: Knowing More and Understanding Less in The Age of Big Data. New York: Liveright Publishing Corporation.

Nichols, Tom. 2017. The Death of Expertise: The Campaign against Established Knowledge and Why It Matters. New York: Oxford University Press.

Quast, Christian. 2018. “Towards A Balanced Account of Expertise.” Social Epistemology 32(6): 397-419.

Vosoughi, Soroush; Deb Roy, and Sinan Aral. (2018). “The Spread of True and False News Online.” Science 359 (6380): 1146-1151.

[1] These virtues are part of what I have elsewhere called novice-oriented abilities (see Croce 2019, 13).

[2] For the sake of completeness, it should also be noted that other intellectual virtues may be required for one to possess primary competence in a domain, especially in those fields in which competence involves some propositional knowledge and understanding. In particular, I have in mind virtues such as thoroughness, intellectual perseverance, creativity, open-mindedness, intellectual curiosity, and autonomy (see Croce 2019, 18).

[3] As Goldman points out, this is the role of academic certifications, professional accreditations, work experiences, and so on (2001, 97).

Author Information: Michel Croce, University of Edinburgh,

Croce, Michel. “Objective Expertise and Functionalist Constraints.” Social Epistemology Review and Reply Collective 8, no. 5 (2019): 25-35.

The pdf of the article gives specific page references. This essay is published in two separate posts, the second of which is available at this link. Shortlink:

Image by Bill Kerr via Flickr / Creative Commons


Christian Quast has recently embarked on the project of systematizing the debate about the notion of expertise, an extremely fascinating and important issue addressed by scholars of many disciplines yet still in need of an interdisciplinary take. He sheds light on a number of relevant features of this notion and defends what he calls a “balanced” account of expertise, namely one that defines this concept in light of an expert’s dispositions, manifestations of their dispositions, and social role or function.

In doing so, Quast argues against three versions of reductionism about expertise: ReductionismF, which reduces expertise to the function an expert fulfills in a community; ReductionismM, which confuses expertise with the manifestation of an expert’s competence; and ReductionismD, in which expertise boils down to possessing suitable dispositions in a specific domain—that is, practical abilities or epistemic properties such as knowledge, true beliefs, or understanding.

As an attempt at bringing together interdisciplinary discussions of a specific topic, Quast’s project is ambitious and provides a genuine contribution to the ongoing discussions around the topic of expertise in philosophy, psychology, and the social sciences. Inevitably, Quast’s rich analysis and original proposal raise a number of worries that deserve to be further inspected.

In this critical reply, I offer some considerations that put pressure on Quast’s balanced account and hopefully help anyone interested in this debate take a step forward toward explaining what it takes for one to be an expert. The reply is structured as follows. First, I argue that his allegedly balanced view is liable to a potentially compromising tension between its function component and the ingredients of objective expertise (§1).

Then, I show that Quast’s threefold characterization of an objective expert is too strong, as it imposes conditions that several individuals whom we would consider experts are unable to fulfill (§2). Finally, I provide reasons in favor of endorsing an objective account of expertise in light of some specific features of our society, and show how this account can take into due consideration the different services experts ordinarily perform (§3).

Against a Balanced Account of Expertise

The first consideration I want to offer in response to Quast is that, to put it simply, he cannot have his cake and eat it too. Quast devotes a good amount of his paper to convincing us that the aforementioned reductionist accounts of expertise are flawed and that a more plausible story of what it takes for one to be an expert has to rely upon “an entangled interrelationship” between an expert’s dispositions and the contextual service function they perform in a community (2019, 412). In this section, I purport to show that such an entangled relationship of dispositions and functions on his balanced approach is largely problematic.

Let us recall Quast’s comprehensive definition of an expert, which is offered right at the end of his article:

(ExpertF-C-M) Someone e is an objective expert in contrast to some client c within a certain domain d only if e is undefeatedly disposed to fulfill a particular service function in d for c adequately at the moment of assessment (412).

At first glance, Quast’s move is attractive. In the end, we usually think of experts as subjects who are more competent than most people in a domain,[1] but, at the same time, we grant one the status of an expert (i) based on their social role and (ii) against a relevant contrast class of individuals who are unable to provide a similar service. In contrast, both ReductionismF and ReductionismD are liable to counterexamples.

The former is wrongly committed to granting the status of an expert translator to a subject who manages a translation-services company by delegating any job to unknown freelancers and lacks any translating skills (402). The latter is wrongly committed to grant the status of a wine expert to an individual who can correctly estimate the value of a wine cellar without having the ability or the willingness to provide an explanation of their evaluation (407).

In contrast, neither the manager nor the wine consultant satisfies the requirements of expertise on the balanced account. The former is not an expert, because he lacks the dispositions required to provide translating services—that is, knowledge of at least two languages, translating skills, and the like. The latter is not an expert, because her competence to assess the value of wine cellars gets defeated by her inability or unwillingness to give an account of her services at the moment of assessment (407).[2]

Dispositions and Functions in Tension

However, a closer inspection of Quast’s proposed view of expertise reveals a tension between the disposition component and the function component. Consider the disposition component first and, in particular, his analysis of objective expertise.

He conceives of objective expertise as encompassing the following three elements: (i) primary competence, which relates to an expert’s reliability in delivering the services they are supposed to provide; (ii) secondary competence, which relates to an expert’s ability to explain their services to a client, thereby establishing and fostering mutual trust; and (iii) intellectually virtuous character, which ensures that an expert is willing to manifest both the above competences when appropriate.

For the time being, let’s set aside a reasonable concern one might have about Quast’s unduly narrow characterization of the role intellectual-character virtues play in his account of objective expertise.[3]

The balanced account is quite demanding, as according to it someone is an objective expert insofar as they are competent in a given domain, able to provide their clients with tailored explanations of their services, and willing to do so in the appropriate circumstances. Going back to the wine-consultant case, it should be evident that the reason why the consultant might fail to be an expert is that she lacks secondary competence, intellectual virtues, or both, as her inability or unwillingness to share any considerations about her estimate of the wine cellar with the client demonstrates.

As anticipated, on the balanced account these considerations about objective expertise need to be balanced, or implemented, with further remarks on the service function of experts. Here Quast takes quite a concessive route and offers the case of a “private expert”: in the example, Christian Quast’s wife asks him to find someone who can fix or replace a leaky drain pipe; he approaches the issue by relying on his father-in-law, whose craft hobby enables him to solve the problem (410).

Quast is ready to admit that his father-in-law is more of an expert than himself and his wife, yet he goes so far as to concede that the man satisfies the requirements of a function-based account of expertise.

The function component plays a key role in this account, in that the service his father-in-law fulfills determines

(i) a relevant contrast class of individuals who lack the disposition to perform a specific function—that is, the class composed of Christian and his wife;

(ii) a proper characterization of the domain of expertise, namely that of replacing leaky drain pipes;

(iii) the degree of reliability required for Christian’s father-in-law to fulfill the function—that is, Christian’s own standards for replacement of leaky drain pipes;

(iv) a range of similar situations in which the man is supposed to be able to deliver his services; and

(v) minimum conditions for him to fulfill the individual requirements of objective expertise, which in this case require relative competence to repair the leaky drain pipe at the Quasts’ place.

Thus, on Quast’s balanced account, possession of expertise depends on contextual factors, such as the specifics of the contrast class of laypeople and the situation in which expertise is ascribed, as well as on practical factors, such as the needs of the relevant clients and the urgency of the required service. These elements determine whether a hobbyist-craftsperson is an expert in repairing leaky drain pipes or a wine consultant is an expert in value assessment of wine cellars.

Problems of Balance in Expertise

Unfortunately, the “balanced” account emerging from these components is less tenable than one might have initially thought. The first problem is that it is hard to make sense of the notion of objective expertise on such a functionalist account. For possession of objective expertise in a domain becomes hostage to two inherently relative elements, namely (i) the service someone is disposed and willing to fulfill for (ii) a community—or contrast class, to stick with Quast’s vocabulary.

On standard comparative accounts of expertise, (ii) obviously plays a major role, as possession of expertise merely amounts to being more of an expert in a (broader or narrower) domain than some group of people and therefore expertise reduces to an entirely comparative notion.

In such a perspective, both Christian’s father-in-law and a plumbing engineer are experts in repairing leaky drain pipes although the latter’s competence is much broader than the former’s. For each of them is more of an expert than the respective contrast class, which includes Christian and his wife in the former case versus, say, most people in the engineer’s town, district, or state in the latter case. Clearly, though, this diagnosis comes at the cost of giving up on the inquiry into the objective requirements of expertise.

Despite including (ii) in his account of expertise, Quast purports to endorse a view that makes room for objective expertise. Thus, he has to prevent this relative condition from delivering the standard comparative diagnosis in situations such as the leaky-drain-pipes one.

He does so through the service-function element—that is, (i)—by arguing that one is an objective expert insofar as they are undefeatedly disposed to serve a relevant need of the respective community or contrast class. Thus, on the balanced account we can still attribute objective expertise to both Christian’s father-in-law and a plumbing engineer as long as they can fix leaky drain pipes in the respective community or contrast class.

I am unpersuaded by this move for two reasons. The first is that introducing a relative element such as (i) does not neutralize the anti-objective effect of (ii); rather, it is likely to intensify such an effect by adding a further relative variable to the account. The second is that the only way for Quast to grant expertise to his father-in-law and a plumbing engineer is to impose odd restrictions on domains of expertise.

Specifically, he has to concede that his father-in-law is an expert because he serves the community composed of Christian and his wife by doing something like “repairing leaky drain pipes at the Quasts’ place” or “repairing leaky drain pipes of some kind.” In contrast, the plumbing engineer is an expert because he serves a wider community by, say, “repairing leaky drain pipes of any kind.”

This move would thus generate an unnecessary proliferation of domains of expertise depending on the specific needs of any relevant contrast class. For example, my auntie Renata, who helps most inhabitants of a rural village in Liguria react to (i.e., “like”) and comment on the content appearing in their Facebook news feed, would possess objective expertise in something like “adding likes and comments on posts on Facebook” relative to the contrast class composed of the citizens of Bevena, although her competence regarding social networks ends pretty much there.

These considerations show that the balanced account narrows the notion of expertise to the point that we lose our grip on what is objective about an expert’s competence. To avoid this result and save both the functionalist spirit of his view and its context sensitivity, Quast should abandon the idea of making room for objective expertise and endorse an entirely comparative account. This is why, in a word, Quast cannot have his cake and eat it too.

Contact details:


Coady, David. 2012. What to Believe Now: Applying Epistemology to Contemporary Issues. Malden (MA): Wiley-Blackwell.

Croce, Michel. 2019. “On What It Takes to Be An Expert.” The Philosophical Quarterly 69(274): 1-21.

Fuller, Steve. Post-Truth: Knowledge as A Power Game. London: Anthem Press.

Goldman, Alvin. 2001. “Experts: Which Ones Should You Trust?” Philosophy and Phenomenological Research 63: 85-110.

Lynch, Michael. 2016. The Internet of Us: Knowing More and Understanding Less in The Age of Big Data. New York: Liveright Publishing Corporation.

Nichols, Tom. 2017. The Death of Expertise: The Campaign against Established Knowledge and Why It Matters. New York: Oxford University Press.

Quast, Christian. 2018. “Towards A Balanced Account of Expertise.” Social Epistemology 32(6): 397-419.

Vosoughi, Soroush; Deb Roy, and Sinan Aral. (2018). “The Spread of True and False News Online.” Science 359 (6380): 1146-1151.

[1] It may be helpful to note that this competence may boil down to different properties and dispositions depending on the specifics of the domain under consideration. For instance, the competence of an expert carpenter might involve a good deal of experience, practical skills, and know-how, whereas the competence of an expert in contemporary history might be mostly based on great instruction, analytical skills, and theoretical understanding of the extant literature and recent historical events.

[2] In the analysis of his wine-expert case, Quast points out that we might ascribe a default expertise to the wine consultant yet withdraw our attribution of expertise if she refuses to provide suitable explanations of her evaluation (407–8).

[3] As I have argued elsewhere (see Croce 2019, §§4–5), we have reasons to think the character virtues of an expert make them not only willing but also able to fulfill their service function within a community.

Author Information: Jeff Kochan, University of Konstanz,

Kochan, Jeff. “Suppressed Subjectivity and Truncated Tradition: A Reply to Pablo Schyfter.” Social Epistemology Review and Reply Collective 7, no. 12 (2018): 15-21.

The pdf of the article gives specific page references. Shortlink:

Image by Brandon Warren via Flickr / Creative Commons


This article responds to: Schyfter, Pablo. “Inaccurate Ambitions and Missing Methodologies: Thoughts on Jeff Kochan and the Sociology of Scientific Knowledge.” Social Epistemology Review and Reply Collective 7, no. 8 (2018): 8-14.

In his review of my book – Science as Social Existence: Heidegger and the Sociology of Scientific Knowledge – Raphael Sassower objects that I do not address issues of market capitalism, democracy, and the ‘industrial-academic-military complex’ (Sassower 2018, 31). To this, I responded: ‘These are not what my book is about’ (Kochan 2018, 40).

In a more recent review, Pablo Schyfter tries to turn this response around, and use it against me. Turnabout is fair play, I agree. Rebuffing my friendly, constructive criticism of the Edinburgh School’s celebrated and also often maligned ‘Strong Programme’ in the Sociology of Scientific Knowledge (SSK), Schyfter argues that I have failed to address what the Edinburgh School is actually about (Schyfter 2018, 9).

Suppressing the Subject

More specifically, Schyfter argues that I expect things from the Edinburgh School that they never intended to provide. For example, he takes what I call the ‘glass bulb’ model of subjectivity, characterises it as a ‘form of realism,’ and then argues that I have, in criticising the School’s lingering adherence to this model, failed to address their ‘actual intents’ (Schyfter 2018, 8, 9). According to Schyfter, the Edinburgh School did not have among its intentions the sorts of things I represent in the glass-bulb model – these are not, he says, what the School is about.

This claim is clear enough. Yet, at the end of his review, Schyfter then muddies the waters. Rather than rejecting the efficacy of the glass-bulb model, as he had earlier, he now tries ‘expanding’ on it, suggesting that the Strong Programme is better seen as a ‘working light bulb’: ‘It may employ a glass-bulb, but cannot be reduced to it’ (Schyfter 2018, 14).

So is the glass-bulb model a legitimate resource for understanding the Edinburgh School, or is it not? Schyfter’s confused analysis leaves things uncertain. In any case, I agree with him that the Edinburgh School’s complete range of concerns cannot be reduced to those specific concerns I try to capture in the glass-bulb model.

The glass-bulb model is a model of subjectivity, and subjectivity is a central topic of Science as Social Existence. It is remarkable, then, that the word ‘subject’ and its cognates never appear in Schyfter’s review (apart from in one quote from me). One may furthermore wonder why Schyfter characterises the glass-bulb model as a ‘form of realism.’ No doubt, these two topics – subjectivity and realism – are importantly connected, but they are not the same. Schyfter has mixed them up, and, in doing so, he has suppressed subjectivity as a topic of discussion.

Different Kinds of Realism

Schyfter argues that I am ‘unfair’ in criticising the Edinburgh School for failing to properly address the issue of realism, because, he claims, ‘[t]heir work was not about ontology’ (Schyfter 2018, 9). As evidence for my unfairness, he quotes my reference to ‘the problem of how one can know that the external world exists’ (Schyfter 2018, 9; cf. Kochan 2017, 37). But the problem of how we can know something is not an ontological problem, it is an epistemological one, a problem of knowledge. Schyfter has mixed things up again.

Two paragraphs later, Schyfter then admits that the Edinburgh School ‘did not entirely ignore ontology’ (Schyfter 2018, 9). I agree. In fact, as I demonstrate in Chapter One, the Edinburgh School was keen to ontologically ground the belief that the ‘external world’ exists. Why? Because they see this as a fundamental premise of science, including their own social science.

I criticise this commitment to external-world realism, because it generates the epistemological problem of how one can know that the external world exists. And this epistemological problem, in turn, is vulnerable to sceptical attack. If the world is ‘external,’ the question will arise: external to what? The answer is: to the subject who seeks to know it.

The glass-bulb model reflects this ontological schema. The subject is sealed inside the bulb; the world is external to the bulb. The epistemological problem then arises of how the subject penetrates the glass barrier, makes contact with – knows – the world. This problem is invariably vulnerable to sceptical attack. One can avoid the problem, and the attack, by fully jettisoning the glass-bulb model. Crucially, this is not a rejection of realism per se, but only of a particular form of realism, namely, external-world realism.

Schyfter argues that the Edinburgh School accepts a basic premise, ‘held implicitly by people as they live their lives, that the world with which they interact exists’ (Schyfter 2018, 9). I agree; I accept it too. Yet he continues: ‘Kochan chastises this form of realism because it does not “establish the existence of the external world”’ (Schyfter 2018, 9).

That is not quite right. I agree that people, as they live their lives, accept that the world exists. But this is not external-world realism, and it is the latter view that I oppose. I ‘chastise’ the Edinburgh School for attempting to defend the latter view, when all they need to defend is the former. The everyday realist belief that the world exists is not vulnerable to sceptical attack, because it does not presuppose the glass-bulb model of subjectivity.

On this point, then, my criticism of the Edinburgh School is both friendly and constructive. It assuages their worries about sceptical attack – which I carefully document in Chapter One – without requiring them to give up their realism. But the transaction entails that they abandon their lingering commitment to the glass-bulb model, including their belief in an ‘external’ world, and instead adopt a phenomenological model of the subject as being-in-the-world.

Failed Diversionary Tactics

It is important to note that the Edinburgh School does not reject scepticism outright. As long as the sceptic attacks absolutist knowledge of the external world, they are happy to go along. But once the sceptic argues that knowledge of the external world, as such, is impossible, they demur, for this threatens their realism. Instead, they combine realism with relativism. Yet, as I argue, as long as they also combine their relativism with the glass-bulb model, that is, as long as theirs is an external-world realism, they will remain vulnerable to sceptical attack.

Hence, I wrote that, in the context of their response to the external-world sceptic, the Edinburgh School’s distinction between absolute and relative knowledge ‘is somewhat beside the point’ (Kochan 2017, 48). In response, Schyfter criticises me for neglecting the importance of the Edinburgh School’s relativism (Schyfter 2018, 10). But I have done no such thing. In fact, I wholly endorse their relativism. I do suggest, however, that it be completely divorced from the troublesome vestiges of the glass-bulb model of subjectivity.

Schyfter uses the same tactic in response to this further claim of mine: ‘For the purposes of the present analysis, whether [conceptual] content is best explained in collectivist or individualist terms is beside the point’ (Kochan 2017, 79). For this, I am accused of failing to recognise the importance of the Edinburgh School’s commitment to a collectivist or social conception of knowledge (Schyfter 2018, 11).

The reader should not be deceived into thinking that the phrase ‘the present analysis’ refers to the book as a whole. In fact, it refers to that particular passage of Science as Social Existence wherein I discuss David Bloor’s claim that the subject can make ‘genuine reference to an external reality’ (Kochan 2017, 79; cf. Bloor 2001, 149). Bloor’s statement relies on the glass-bulb model. Whether the subjectivity in the bulb is construed in individualist terms or in collectivist terms, the troubles caused by the model will remain.

Hence, I cannot reasonably be charged with ignoring the importance of social knowledge for the Edinburgh School. Indeed, the previous but one sentence to the sentence on which Schyfter rests his case reads: ‘This sociological theory of the normativity and objectivity of conceptual content is a central pillar of SSK’ (Kochan 2017, 79). It is a central pillar of Science as Social Existence as well.

Existential Grounds for Scientific Experience

Let me shift now to Heidegger. Like previous critics of Heidegger, Schyfter is unhappy with Heidegger’s concept of the ‘mathematical projection of nature.’ Although I offer an extended defense and development of this concept, Schyfter nevertheless insists that it does ‘not offer a clear explanation of what occurs in the lived world of scientific work’ (Schyfter 2018, 11).

For Heidegger, ‘projection’ structures the subject’s understanding at an existential level. It thus serves as a condition of possibility for both practical and theoretical experience. Within the scope of this projection, practical understanding may ‘change over’ to theoretical understanding. This change-over in experience occurs when a subject holds back from immersed, practical involvement with things, and instead comes to experience those things at a distance, as observed objects to which propositional statements may then be referred.

The kind of existential projection specific to modern science, Heidegger called ‘mathematical.’ Within this mathematical projection, scientific understanding may likewise change over from practical immersion in a work-world (e.g., at a lab bench) to a theoretical, propositionally structured conception of that same world (e.g., in a lab report).

What critics like Schyfter fail to recognise is that the mathematical projection explicitly envelopes ‘the lived world of scientific work’ and tries to explain it (necessarily but not sufficiently) in terms of the existential conditions structuring that experience. This is different from – but compatible with – an ethnographic description of scientific life, which need not attend to the subjective structures that enable that life.

When such inattention is elevated to a methodological virtue, however, scientific subjectivity will be excluded from analysis. As we will see in a moment, this exclusion is manifest, on the sociology side, in the rejection of the Edinburgh School’s core principle of underdetermination.

In the mid-1930s, Heidegger expanded on his existential conception of science, introducing the term mathēsis in a discussion of the Scientific Revolution. Mathēsis has two features: metaphysical projection; and work experiences. These are reciprocally related, always occurring together in scientific activity. I view this as a reciprocal relation between the empirical and the metaphysical, between the practical and the theoretical, a reciprocal relation enabled, in necessary part, by the existential conditions of scientific subjectivity.

Schyfter criticises my claim that, for Heidegger, the Scientific Revolution was not about a sudden interest in facts, measurement, or experiment, where no such interest had previously existed. For him, this is ‘excessively broad,’ ‘does not reflect the workings of scientific practice,’ and is ‘belittling of empirical study’ (Schyfter 2018, 12). This might be true if Heidegger had offered a theory-centred account of science. But he did not. Heidegger argued that what was decisive in the Scientific Revolution was, as I put it, ‘not that facts, experiments, calculation and measurement are deployed, but how and to what end they are deployed’ (Kochan 2017, 233).

According to Heidegger, in the 17th c. the reciprocal relation between metaphysical projection and work experience was mathematicised. As the projection became more narrowly specified – i.e., axiomatised – the manner in which things were experienced and worked with also became narrower. In turn, the more accustomed subjects became to experiencing and working with things within this mathematical frame, the more resolutely mathematical the projection became. Mathēsis is a kind of positive feedback loop at the existential level.

Giving Heidegger Empirical Feet

This is all very abstract. That is why I suggested that ‘[a]dditional material from the history of science will allow us to develop and refine Heidegger’s account of modern science in a way which he did not’ (Kochan 2017, 235). This empirical refinement and development takes up almost all of Chapters 5 and 6, wherein I consider: studies of diagnostic method by Renaissance physician-professors at the University of Padua, up until their appointment of Galileo in 1591; the influence of artisanal and mercantile culture on the development of early-modern scientific methods, with a focus on metallurgy; and the dispute between Robert Boyle and Francis Line in the mid-17th c. over the experimentally based explanation of suction.

As Paolo Palladino recognises in his review of Science as Social Existence, this last empirical case study offers a different account of events than was given by Steven Shapin and Simon Schaffer in their classic 1985 book Leviathan and the Air-Pump, which influentially applied Edinburgh School methods to the history of science (Palladino 2018, 42). I demonstrate that Heidegger’s account is compatible with this sociological account, and that it also offers different concepts leading to a new interpretation.

Finally, at the end of Chapter 6, I demonstrate the compatibility of Heidegger’s account of modern science with Bloor’s concept of ‘social imagery,’ not just further developing and refining Heidegger’s account of modern science, but also helping to more precisely define the scope of application of Bloor’s valuable methodological concept. Perhaps this does not amount to very much in the big picture, but it is surely more than a mere ‘semantic reformulation of Heidegger’s ideas,’ as Schyfter suggests (Schyfter 2018, 13).

Given all of this, I am left a bit baffled by Schyfter’s claims that I ‘belittle’ empirical methods, that I ‘do[] not present any analysis of SSK methodologies,’ and that I am guilty of ‘a general disregard for scientific practice’ (Schyfter 2018, 12, 11).

Saving an Edinburgh School Method

Let me pursue the point with another example. A key methodological claim of the Edinburgh School is that scientific theory is underdetermined by empirical data. In order to properly explain theory, one must recognise that empirical observation is an interpretative act, necessarily (but not sufficiently) guided by social norms.

I discuss this in Chapter 3, in the context of Bloor’s and Bruno Latour’s debate over another empirical case study from the history of science, the contradictory interpretations given by Robert Millikan and Felix Ehrenhaft of the natural phenomena we now call ‘electrons.’

According to Bloor, because Millikan and Ehrenhaft both observed the same natural phenomena, the divergence between their respective claims – that electrons do and do not exist – must be explained by reference to something more than those phenomena. This ‘something more’ is the divergence in the respective social conditions guiding Millikan and Ehrenhaft’s interpretations of the data (Kochan 2017, 124-5; see also Kochan 2010, 130-33). Electron theory is underdetermined by the raw data of experience. Social phenomena, or ‘social imagery,’ must also play a role in any explanation of how the controversy was settled.

Latour rejects underdetermination as ‘absurd’ (Kochan 2017, 126). This is part of his more general dismissal of the Edinburgh School, based on his exploitation of vulnerabilities in their lingering adherence to the glass-bulb model of subjectivity. I suggest that the Edinburgh School, by fully replacing the glass-bulb model with Heidegger’s model of the subject as being-in-the-world, can deflect Latour’s challenge, thus saving underdetermination as a methodological tool.

This would also allow the Edinburgh School to preserve subjectivity as a methodological resource for sociological explanation. Like Heidegger’s metaphysical projection, the Edinburgh School’s social imagery plays a necessary (but not a sufficient) role in guiding the subject’s interpretation of natural phenomena.

The ‘Tradition’ of SSK – Open or Closed?

Earlier, I mentioned the curious fact that Schyfter never uses the word ‘subject’ or its cognates. It is also curious that he neglects my discussion of the Bloor-Latour debate and never mentions underdetermination. In Chapter 7 of Science as Social Existence, I argue that Latour, in his attack on the Edinburgh School, seeks to suppress subjectivity as a topic for sociological analysis (Kochan 2017, 353-54, and, for methodological implications, 379-80; see also Kochan 2015).

More recently, in my response to Sassower, I noted the ongoing neglect of the history of disciplinary contestation within the field of science studies (Kochan 2018, 40). I believe that the present exchange with Schyfter nicely exemplifies that internal contestation, and I thank him for helping me to more fully demonstrate the point.

Let me tally up. Schyfter is silent on the topic of subjectivity. He is silent on the Bloor-Latour debate. He is silent on the methodological importance of underdetermination. And he tries to divert attention from his silence with specious accusations that, in Science as Social Existence, I belittle empirical research, that I disregard scientific practice, that I fail to recognise the importance of social accounts of knowledge, and that I generally do not take seriously Edinburgh School methodology.

Schyfter is eager to exclude me from what he calls the ‘tradition’ of SSK (Schyfter 2018, 13). He seems to view tradition as a cleanly bounded and internally cohesive set of ideas and doings. By contrast, in Science as Social Existence, I treat tradition as a historically fluid range of intersubjectively sustained existential possibilities, some inevitably vying against others for a place of cultural prominence (Kochan 2017, 156, 204f, 223, 370f). Within this ambiguously bounded and inherently fricative picture, I can count Schyfter as a member of my tradition.


My thanks to David Bloor and Martin Kusch for sharing with me their thoughts on Schyfter’s review. The views expressed here are my own.

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Bloor, David (2001). ‘What Is a Social Construct?’ Facta Philosophica 3: 141-56.

Kochan, Jeff (2018). ‘On the Sociology of Subjectivity: A Reply to Raphael Sassower.’ Social Epistemology Review and Reply Collective 7(5): 39-41.

Kochan, Jeff (2017). Science as Social Existence: Heidegger and the Sociology of Scientific Knowledge (Cambridge: Open Book Publishers).

Kochan, Jeff (2015). ‘Putting a Spin on Circulating Reference, or How to Rediscover the Scientific Subject.’ Studies in History and Philosophy of Science 49:103-107.

Kochan, Jeff (2010). ‘Contrastive Explanation and the “Strong Programme” in the Sociology of Scientific Knowledge.’ Social Studies of Science 40(1): 127-44.

Palladino, Paolo (2018). ‘Heidegger Today: On Jeff Kochan’s Science and Social Existence.’ Social Epistemology Review and Reply Collective 7(8): 41-46.

Sassower, Raphael (2018). ‘Heidegger and the Sociologists: A Forced Marriage?’ Social Epistemology Review and Reply Collective 7(5): 30-32.

Schyfter, Pablo (2018). ‘Inaccurate Ambitions and Missing Methodologies: Thoughts on Jeff Kochan and the Sociology of Scientific Knowledge.’ Social Epistemology Review and Reply Collective 7(8): 8-14.

Shapin, Steven and Simon Schaffer (1985). Leviathan and the Air-Pump: Hobbes, Boyle, and the Experimental Life (Princeton: Princeton University Press).