1 Introduction

When facing a technically complex problem—i.e., a problem in which technical and scientific components are essentially interwoven with social ones—it is natural to turn to a scientist or to a technologist for advice. It seems entirely rational to think that their deep knowledge of the discipline (or disciplines) relevant to the given context offers the best hope of solving the problem that hinders our plans and therefore prevents us reaching the desired well-being.

We wholeheartedly agree with the view that it is entirely rational to consult scientists and technologists to solve problems that require competences far superior to those possessed by ordinary citizens.Footnote 1 We, therefore, take it for granted that in many circumstances scientific knowledge is a necessary condition for solving problems of a certain complexity. At the same time, however, we do not believe that it is a sufficient condition: even though one cannot be a scientific expert without being a scientist, being a scientist is not enough to be a good scientific expert.Footnote 2

The thesis that we want to put forward and defend in this article is precisely that being a scientist and being a scientific expert are by no means the same thing. More precisely, our thesis is that for a scientist to be a good scientific expert, she has to be endowed with intelligence, in the sense in which that notion is used by Dewey, a capacity that is not usually included among those scientific experts should have. The purpose of the present article is to clarify the nature of the intelligence required of scientists to play the role of scientific experts.

By focusing on that problem, we go against the grain of much of the existing literature in the field.Footnote 3 More importantly, we frame the question of scientific expertise in a way that is at odds with most of the current approaches. When seen from the perspective that we advocate, indeed, the issue of understanding the nature of scientific expertise does not boil down to the much-debated problem of understanding whether scientists and scientific experts know more, or are more successful in their predictions, or are more practically skilled, than novices. The point that we would like to make is that there are two questions, not just one, that philosophers of expertise should address: the first one deals with the conditions that define and constitute scientific competence; the second one deals with the conditions that define and constitute scientific expertise.Footnote 4 The traditional philosophical theories of expertise—the veritistic approach, the social-role account, the reputational analysis, and so onFootnote 5—attempt to answer the former question; we are concerned with the latter, instead.Footnote 6 The two questions should be kept separate.

A final preliminary remark. Scientific expertise can be analyzed from a plurality of perspectives—epistemological, sociological, psychological, legal, institutional, and so on. A full-fledged theory of expertise is clearly expected to provide a consistent account of how all those aspects merge and interact with one another. Nonetheless, such a theory is yet to come. The goal of this article is, therefore, more modest: we set out to develop an idealized, normative analysis of what a scientific expert should be, in order to adequately perform the task for which they are consulted. We will therefore allow ourselves a certain degree of abstraction: for instance, we won’t take into consideration the particular legislative framework regulating expert advice, though the kind of interaction permitted between scientific experts and laypeople is relevant to the understanding of the scope, limits and function of scientific expertise (Solomon, 2015, Chap. 2 and 3). We are aware that, as any abstraction, such an approach has some drawbacks; however, we hope that it helps bring to the fore some distinctive features of the phenomenon of scientific expertise that usually go unnoticed.

The article goes as follows. In the first paragraph, we briefly illustrate the main reasons in support of the distinction between scientists and scientific experts. In the second paragraph, we outline the philosophical framework in which we conceive of the notion of intelligence. In the third paragraph, we delve into the analysis of that concept, by relying on Dewey’s notion of a problematic situation. In the fourth paragraph, we discuss two objections that are likely to be raised against our proposal.

2 Scientists and scientific experts

There are plenty of cases in which scientific experts failed (Collins, 2014).Footnote 7 Following the radioactive fallout from the accident at the Chernobyl nuclear power plant in 1986, scientific experts overlooked many important details of the local situation, thereby imposing ineffective and economically harmful restrictions on Cumbrian sheep farmers (Wynne, 1996). When the first drugs to treat AIDS were discovered, in the 1980s, scientific experts used the rigorous experimental protocols required by statistical theory, neglecting the dramatic situation that had occurred, with thousands of deaths and the growing concern of the sick and of their family members (Epstein, 1996). The engineers who built an imposing dam in the Vajont valley in Italy in the 1960s relied on their undisputed engineering knowledge, ignoring the unsuspected geological fragility of the slopes of the valley (Barrotta and Montuschi, 2018a).

Some questions naturally follow from the acknowledgment of the repeated failings of scientists to solve the problems they are asked to tackle. Why are scientists and technologists so unsuccessful when it comes down to solving complex technical problems? What type of knowledge do they lack, if any? And how are we supposed to trust them if they so often fail?

Those facts are startling since they are likely to undermine our confidence in the division of cognitive labor on which Western contemporary societies depend. And yet, a satisfactory account of those poor epistemic performances is still to be found.

It is at this point that the distinction between scientists and scientific experts chimes in. It ultimately relies on the now widely acknowledged fact that the explanation or prediction of a particular event is never (i.e., with the remarkable exception of artificial circumstances) deducible from general laws and initial conditions. There are various lines of reasoning that lead to that conclusion, but here we can limit ourselves to presenting the argument offered by Hempel in one of his last works (Hempel, 1988).Footnote 8 That argument has the advantage of showing how this conclusion can be reached by relying on a very classical approach to the nature of theories and explanation.Footnote 9

According to the logical positivist tradition, the explanation and prediction of a certain event can be accounted for in terms of the so-called covering-law model. Thus, for example, the event “This iron bar will lengthen” is explained by deductively inferring it from a universal lawFootnote 10—such as “Heated iron bars lengthen”—and from a statement of the initial conditions—such as “This bar is made of iron” and “This bar is getting heated”.

Clearly, logical empiricists were well aware that laws and initial conditions alone are not sufficient to guarantee that the event stated in the explanandum will follow, even in the happy case when all the elements of the explanans are true. For example, to take an example from Coffa (1973), a mischievous child could hammer both ends of the bar while it is being heated, thereby preventing the bar from lengthening. Given such possibilities, we cannot say that, given the law and a certain proposition concerning the facts of the case (this bar is heated), we can deductively infer the description of a particular event (this bar will lengthen).

A possible, often-suggested way out from such difficulty is to introduce ceteris paribus clauses. As is well known, a ceteris paribus clause shields the inference by stating that no interference has occurred. For instance, it says that no relevant interference occurred on the metal bar while getting heated; consequently, we can conclude for the soundness of the inference that provides an explanation. Since all the propositions of the explanans are true—“Heated iron bars lengthen”, and “This iron bar is getting heated”—we are warranted to conclude that the event asserted in the explanandum will take place. In other words, ceteris paribus clauses allow to apply the general law to the particular circumstances under consideration.

It is interesting to note that it was Hempel himself who acknowledged how inappropriate it would be to conceive of the function of ceteris paribus clauses in that way. His point was that ceteris paribus clauses should not be endowed with the overall power to shield the theory from any possible disturbing factors. In other terms, the deductive relationship between the premises and the conclusion of an explanation cannot be saved by relying on ceteris paribus clauses. Here is what he wrote in this regard:

the idea of a ceteris paribus clause is itself vague and elusive [since it does not tell us] what other things, and equal to what […]. A [ceteris paribus clause] as here understood is not a clause that can be attached to a theory as a whole and vouchsafe its deductive potency by asserting that in all particular situations to which the theory is applied, disturbing factors are absent. Rather [the ceteris paribus clause] has to be conceived as a clause which pertains to some particular application of the given theory and which asserts that in the case at hand, no effective factors are present other than those explicitly taken into account (Hempel, 1988, 156–7 and 154; italics added).

What Hempel tells us is that in order to formulate a valid deductive argument we must have good reasons to believe that, during the application of our knowledge to the specific case under consideration, all the relevant factors have been correctly taken into account. It would be too rash to say that, if there are no disturbing factors, then our knowledge warrants the deduction of a phenomenon. The deductive model of explanation and prediction is different from hypothetical reasoning: the set of premises must actually explain or predict why a certain phenomenon has occurred “in the case at hand”.Footnote 11

The point that we would like to make is that it is possible to be highly competent in one field—to have a sound theoretical knowledge of the laws and principles of a scientific discipline and to perform well in itFootnote 12—without thereby being able to act as a good expert in the case under consideration. What an expert is required to accomplish is to solve the specific problem that originated reflection and inquiry, and this entails paying attention to and taking into account the uniqueness of the features of the situation.

To take up one of (the many possible) examples mentioned above, the scientists hired by the UK Government to come up with a solution to the complex problems of the radioactive contamination from the fallout from the Chernobyl nuclear accident did not lack sound scientific competence. They knew very well the general laws that describe how caesium behaves in the different kinds of soil: for instance, they knew that in alkaline clay soils radiocaesium is quickly absorbed and then ‘locked up’ chemically and immobilized, which makes it unable to trickle into the vegetation. Accordingly, they predicted that a three-week ban would have been enough to restore the original situation, on the basis of empirical observations of the presence of alkaline clay soils in the area. Unfortunately, the scientists wrongly judged the chemical composition of the soil, and in doing so they “unwittingly transferred knowledge of the clay soils to acid peaty soil” (Wynne, 1992, 286). The reason for their failure as experts was therefore entirely due to their inability to grasp the specific features of the situation under consideration—a lack of attention and sensitivity that was reflected in their dismissive attitude towards the local knowledge of the Cumbrian farmers.

We draw a straightforward conclusion from those previous remarks. To be a good scientific expert, one has to be competent in her corresponding scientific field, and yet scientific competence is not enough. Something more is needed, and that is the capacity to apply scientific knowledge to the particular case at hand. Following Dewey’s lead, we call such a set of skills intelligence.Footnote 13

3 Intelligence and scientific expertise

In The Quest for Certainty (1929), Dewey defines intelligence as follows:

Intelligence on the other hand is associated with judgment; that is, with selection and arrangement of means to effect consequences and with choice of what we take as our ends. A man is intelligent not in virtue of having reason which grasps first and indemonstrable truths about fixed principles, in order to reason deductively from them to the particulars which they govern, but in virtue of his capacity to estimate the possibilities of a situation and to act in accordance with his estimate. In the large sense of the term, intelligence is as practical as reason is theoretical (LW4, 170).

Leaving aside Dewey’s reference to the notion of reason, which is part of his criticism of the traditional conception of philosophy as an activity concerned with the apprehension of a priori truths, and which is, therefore, not relevant for our purposes, the point of that definition is that ‘intelligence’ purports to pinpoint the capacity to cope with a specific situation, to perceive its possibilities and to deploy the means that are likely to attain the chosen end. It is in this sense that Dewey says that intelligence is practical; far from implying its lack of epistemic value, Dewey maintains that intelligence has much to do with the assessment of the facts of the case, as well as with the assessment of the general knowledge that is used as a set of means to lead the situation to its desired conclusion. The pragmatist notion of intelligence on which we aim to build our theory of scientific expertise revolves precisely around the epistemic irreducibility of the particular circumstances to the general knowledge, and the epistemic ‘precariousness’ that follows from such irreducibility.

In order to take a further step and provide a more detailed account of what intelligence is, we analyze that concept in the theoretical framework provided by Dewey’s logic of inquiry.Footnote 14 First of all, let’s start by recalling Dewey’s definition of inquiry, as formulated in his Logic: Theory of Inquiry (1938). Inquiry is there said to be “the controlled or directed transformation of an indeterminate situation into one that is so determinate in its constituent distinctions and relations as to convert the elements of the original situation into a unified whole” (Dewey, 1938, 108–9).

Dewey’s notion of inquiry is at odds with the contemporary epistemological approaches, for a plurality of reasons.Footnote 15 Some of them are direct consequences of Dewey’s rejection of the traditional pragmatist assumption that inquiry is a process aimed at dispelling a state of doubt by generating a state of belief. Dewey believed the language of doubt and belief to be irremediably compromised by psychologism; on the contrary, he held that the process of inquiry is objective in that it has to do with the modification and transformation of the external conditions that make up the problematic situation. According to Dewey, an inquiry cannot merely consist in the revision of a set of private beliefs: it has to bring about some changes in the situation that caused the inquiry to arise.

More relevantly to the present purposes, Dewey maintained that an inquiry is the solution of a new problem. Properly speaking, when the inquirer already knows how to handle the situation, the latter cannot be said to be genuinely problematic, no matter how much attention or reflection is needed to solve it. For a situation to be genuinely problematic, no habitual mode of action should be available to the inquirer: the solution to the problem has to be built up from scratch by taking into consideration the distinguishing features of the situation.Footnote 16

Clearly, no inquiry would be possible if the inquirer could not rely on a pre-established body of knowledge. However, the indispensable role of scientific laws and generalizations should not conceal their limits. When we abandon the abstraction and idealization that make it possible to formulate scientific laws, and use them to make predictions for the future or to figure out possible courses of action, we enter a different world, one in which we are compelled to pay attention to all the contingent and precarious aspects of the problematic situation.Footnote 17 If those aspects are overlooked, the predicted outcome is likely not to occur. If that is the case, then, we can conclude that the specificity of the situation has not been successfully addressed: the inquiry is unsatisfactory because of the inquirer’s poor epistemic performance. The inquirer lacked the epistemic qualities that were needed to properly handle the problem at stake; she lacked the capacity to carry out an accurate and methodical arrangement of the details into an inquiry. According to the terminology that we have adopted, she lacked intelligence.

Two relevant philosophical consequences can be drawn from those remarks. Firstly, as it should now be clear, Dewey’s logic of inquiry does not purport to offer rules for mechanically deriving new hypotheses. Rather, it aims to clarify the processes that a scientifically educated agent must carry out if they want to get to the solution to the problems that called out inquiry. The solution to complex problems is not subject to mechanical procedures, but nevertheless it is subject to precepts that are acquired and refined through education in reflective and intelligent behavior. Dewey himself does not fail to underline this aspect of his logic in relation to education. In How We Think, for instance, he writes: “caution, carefulness, thoroughness, definiteness, exactness, orderliness, methodic arrangements are […] the traits by which we mark off the logical form from what is random and casual on one side, from what is academic and formal on the other […] intellectual end of education is entirely and only logical in this sense; namely, the formation of careful, alert, and thorough habits of thinking” (Dewey, 1910, 225; italics in the original). To a certain extent, it can even be argued that Dewey’s logic boils down to the analysis of how to gain an epistemic standpoint that makes the inquirer intelligent.Footnote 18

Secondly, even though we have repeatedly stressed that intelligence is an epistemic notion, it would be wrong to draw the conclusion that it has no ethical content whatsoever. The problematic situations that scientific experts are called to handle are usually loaded with moral contents, and, as Dewey never gets tired of pointing out, every inquiry is made up of actions that have practical consequences in the sense of making changes to the existing conditions (Dewey, 1938, 175–6). Scientific experts must therefore evaluate the consequences of the actions they recommend in situations that are always unique and potentially laden with moral consequences.Footnote 19 The key insight here is that there is no clear-cut distinction between what has moral content and what has not—that distinction, together with the one between pure and applied science, spins in the void. Anything can become public if its consequences affect the members of a community in a significant way.Footnote 20

4 Indeterminate and problematic situations

The studies in philosophy of science from which we started left us with a negative result: knowledge of “universals” is not enough to successfully apply scientific laws in order to predict and explain phenomena. Intelligence is also needed, the lack of which had unequivocal moral implications, as shown in the case-studies sketched above. In the last paragraph, we argued that Dewey’s theory of inquiry clarifies what intelligence consists of. Far from being concerned with the logical relationships between hypotheses and empirical evidence, such logic is concerned with the way one can hope to reach the solution of problems, whose character is at the same time epistemic and moral.

With this material at hand, we now turn to a toy model of scientific expertise. Let’s assume that a group of scientific experts is consulted to find the best way to provide a community with electricity; we initially leave the composition of the group unspecified—the reason will be clear in a moment. Footnote 21 Apparently, the task that scientific experts are asked to carry out is to compare, contrast and choose among the different ways in which energy can be produced—thermoelectric power plants, hydroelectric power plants, renewable-energy power plants, and even nuclear power plants. Suppose that, at the end of their inquiry, they came to the conclusion that the best way to produce the required energy would be by building a dam with a certain shape and in a certain place. The question we need to address is: what does an inquiry should look like to solve the problem of energy production and provision in a satisfactory way?

It seems clear that an inquiry that pays attention only to the geomorphology of the place—for example, the flow of the local river and its path, the possible places where to build the dam, the geological features of the land around the reservoir—or to the energy requirements of the community would not be adequate. Indeed, it does not take too much reflection to see that building a dam has important consequences on the community, at many different levels. So, for instance, scientific experts should examine the aesthetic impact of the dam, its economic benefits compared to, say, the destruction of the farmland, and so on. Or, to make another example, they should take into account the most relevant damages that the construction may cause to the local wildlife: it is a well-known problem that dams generally release colder waters coming from the bottom of the artificial basin, thus potentially endangering the reproduction of the fish species that are most sensitive to water temperature. The group of scientific experts would, therefore, be asked to figure out a possible solution to that problem, perhaps suggesting the purchase of devices that combine the coldest water from the bottom with the warmest water on the surface.

The point that our toy model is supposed to highlight is that, in such cases, technological, physical and value issues are closely intertwined, constituting the uniqueness of the situation that scientific experts should handle. It is precisely for this reason that we hold that scientific competence is not a sufficient condition for a person to be a scientific expert. It is not enough for the experts in our fictional scenario to be competent in their specific fields of research (for example, by having the theoretical knowledge necessary for the construction of dams, or the ecological knowledge of the behavior of the species living in that area), since the situation under scrutiny is made up not only of physical facts, but also of social values (aesthetic, economic, ecological). Evidence of this fact is that we feel that any decision that failed to take into account the plurality of aspects that are specific to the situation would be highly unsatisfactory: a project that would just address the technical engineering issues related to the building of the dam without paying any attention to its value consequences would be utterly incomplete.

Intelligence as we understand it consists in the capacity to grasp the internal complexity and uniqueness of the problematic situation under scrutiny and to find the best course of action that succeeds in satisfying its demands. Intelligent are those agents who are capable of discovering and correctly evaluating the demands of the situation. In this sense, intelligence amounts to a certain sensitivity to facts: intelligent scientific experts see the network of possible consequences that are already there in the situation, provided that the agent has acquired the capacity to search for them.

The connection between intelligence and perception is best captured by the distinction that Dewey draws between indeterminate and problematic situation (Brown, 2012). In his Logic, Dewey explicitly maintains that the problematic situation originates from a pre-existing indeterminate situation, which is called ‘indeterminate’ because no activity of inquiry has been carried out on its contents yet. The definition of the problem with which one has to deal is the most important step in the inquiry, as aptly expressed by the dictum that “a problem well put is half-solved”. As Dewey remarks:

To find out what the problem and problems are which a problematic situation presents to be inquired into, is to be well along in inquiry. To mistake the problem involved is to cause subsequent inquiry to be irrelevant or to go astray. Without a problem, there is blind groping in the dark. The way in which the problem is conceived decides what specific suggestions are entertained and which are dismissed; what data are selected and which rejected; it is the criterion for relevancy and irrelevancy of hypotheses and conceptual structures. On the other hand, to set up a problem that does not grow out of an actual situation is to start on a course of dead work, nonetheless dead because the work is “busy work” (Dewey, 1938, 108; italics in the original).

It is because of intelligence that the inquirer—or group of inquirers, as in the case under consideration—succeeds in understanding what the problem is “which a problematic situation presents to be inquired to”. Things are there; objective conditions are there; nonetheless, it is the epistemic disposition of the inquirer that allows them to stand out and constitute a genuine problem, thus paving the way to a successful conclusion of the inquiry. If intelligence is lacking, some courses of action will be tried out anyway, but they won’t lead to a satisfactory resolution of the situation.

Let’s go back, then, to our toy model. As we said, the task for which scientific experts were consulted was to figure out the best way to supply a community with electricity. In Deweyan terms, this is the indeterminate situation which lies upstream of inquiry. The first step that scientific experts have to take is to turn the indeterminate situation into a problematic situation, which implies acknowledging that the original aim, “Find a way to supply the community with electricity”, involves potentially conflicting goals and values. Thoroughly understanding the values at stake in the particular situation is a task that requires technical and scientific knowledge, as well as a considerable dose of intelligence to see which of the objective conditions of the situation may be of interest to the citizens. It is not merely a potential conflict between economic and environmental reasons. The same purpose of protecting the environment should be better specified, given the context in which one has to deliberate. Values are often very broadly conceived, and one of the tasks of scientific experts is to try and better clarify such values in light of the specific situation.Footnote 22 There are those who consider wildlife protection as good in itself; others are concerned with saving tourism, which could support green economic development; others prize a production of electricity that mainly protects the quality of the air; and so on. All these ends are intertwined in different ways with the reasons of the economy and are potentially in conflict with them.

If scientific experts are intelligent, they come to realize that the problem they are asked to address is much more complex than was initially supposed: intelligence is the condition that makes it possible to successfully apply the body of existing scientific knowledge, firstly, to the definition and, secondly, to the solution of the problematic situation. The goal of the process of inquiry is, therefore, to bring to the fore, formulate and take into account the unique complexity of the problem at stake. Incidentally, it is for this reason that the composition of the group of scientific experts cannot be established in advance: it is open to change as the definition of the problem unfolds during the inquiry. The choice of which experts are relevant to the inquiry and the definition of the problem are really two faces of the same coin.Footnote 23

5 Means-end relationships and the role of scientific experts

In this final section, we would like to address a couple of objections that are likely to be raised against the notion of intelligence put forward herein. Indeed, it might be argued that we are putting too much burden on the experts’ shoulders, asking them to solve problems that are, first and foremost, public and political. Or, seen from a different perspective, it might be held that we are implicitly recommending a technocratic solution to public problems, which is at odds with the ways in which those problems are—or should be—dealt with in democratic societies. We believe that those two objections, which are strictly intertwined, rest on a serious misunderstanding of our views.

Let’s start with the second objection, according to which ours is a technocratic approach to social problems. The reason why an objection along this line may look convincing is that much of the debate in the field of scientific expertise centers upon a clear-cut distinction between means and ends: it is commonly believed that, while the former are to be singled out by the experts, the latter are chosen by the members of the community through the channels of the political machinery. Consequently, it seems straightforward to conclude that deferring to the scientific experts on values-related issues amounts to taking such issues away from the citizens’ control, thus paving the way to a powerful form of technocracy.Footnote 24

As pragmatists, we reject the clear-cut distinction between means and ends, together with the assumption that the goal of inquiry is given exogenously. On the contrary, we believe that means and ends are co-determined within the process of inquiry. Once again, we follow Dewey closely on this point, who in his Theory of Valuation firstly formulates the thesis that, in deliberative processes, means and ends are in principle inseparable:

The standing objection against [my] view of valuation is that it applies only to things as means, while propositions that are genuine valuation apply to things as ends. [...] But it may be noted here that ends are appraised in the same evaluations in which things as means are weighed. For example, an end suggests itself. But, when things are weighed as means toward that end, it is found that it will take too much time or too great an expenditure of energy to achieve it, or that, if it were attained, it would bring with it certain accompanying inconveniences and the promise of future troubles. It is then appraised and rejected as a “bad” end (Dewey, 1939, 212).

The reason is that what Dewey usually calls an end-in-view—namely, the goal that the agent wants to pursue before starting the inquiry; in our toy model, the goal of supplying a community with electricity—has many unexpected consequences. Given a certain situation, the dull and unintelligent search for an end is more likely to create new and more urgent problems rather than a situation in which all the conflicting tendencies are eventually reconciled. If the group of experts of our model, who were consulted to solve the problem of electricity supply, interpreted that goal as exogenous and defined once for all, they would have to set themselves the task of finding the most efficient means to achieve that goal, no matter what its achievement could bring about. An inquiry that solves a problem at the cost of causing many others is certainly not what a successful inquiry looks like.

Facts and values are not severed as the philosophical tradition take them to be (Putnam, 2002). Scientific experts are faced with the various facts and values that characterize a unique, problematic situation. Their task is that of analyzing and better defining them in order to clarify their possible consequences within the particular situation at stake, with the aim of achieving a new unified situation in which conflicting tendencies cease. By searching for empirical facts and technical solutions, the process of inquiry brings to the fore and makes explicit the network of possible connections between different values. That does not entail that value-decisions are deferred to scientific experts; that entirely depends on the institutional setting in which public inquiries are carried out. Throughout an inquiry, the relations of dependence between means and ends are discovered and clearly formulated: who is in charge of the final decision is a wholly different question. Again, the notion of intelligence we attribute to scientific experts is distinctively epistemic; we do not hold that scientific experts are better, or more entitled, than citizens at deciding on a course of action. In the view we advocate, inquiry is to be conceived of as a process of conceptual clarification carried out by scientific experts along with the members of the community, who are responsible for the final decision.

We can now briefly turn our attention to the other objection, according to which our intelligence-centered account of scientific expertise forces scientific experts to participate in political discussion and debates. Here, a distinction has to be made between epistemic intelligence and political intelligence. A politically intelligent person is often the one who succeeds in showing how the different parties would benefit from accepting a compromise, which could avoid greater harm to them all. On the contrary, the task of an intelligent scientific expert consists precisely in trying to avoid that kind of compromises as much as possible. In fact, the more successful the scientific expert is, the fewer negotiations and compromises are needed. In the field of public policies, the aim of scientific experts is to find technical solutions that meet the needs of all the stakeholders involved in the problematic situation.Footnote 25 In our toy model, the group of scientific experts came to the conclusion of building a dam in a certain way and in a certain place because that solution could minimize the need for compromises among the stakeholders.Footnote 26 Clearly, this is not always possible; and yet good experts must try to get as close as possible to such ideal.Footnote 27 It is only when the scientific experts fail to accomplish the harmonious reconstruction of all the conflicting tendencies of the problematic situation that the need for political negotiation arises.

6 Conclusions

In this article, we have tried to develop a pragmatist-inspired notion of intelligence through which the phenomenon of scientific expertise could be understood. Our thesis is that scientific competence is a necessary but not sufficient condition for scientific expertise; intelligence should also be added.

Within that framework of analysis, we could reach some results that may prove interesting. First of all, we have provided a constructive explanation of why scientists so often make mistakes when they are called to act as scientific experts. One of the merits of our explanation is that it does not lead to sceptical conclusions about scientific knowledge; another one is that it precisely locates the reasons for the experts’ failure in their lack of intelligence; yet another one is that it provides an empirical thesis about where to intervene to improve the epistemic performances of those who are called to act as scientific experts.Footnote 28

In addition, we have outlined the general form of the scientific experts’ failures. Lack of intelligence can be defined as the incapacity to grasp the uniqueness and specificity of the conditions that define the problematic situation under consideration. Such an incapacity may be due to a lack of intellectual humility (which leads, for instance, to downplay the epistemic importance of local knowledge), lack of carefulness (which prevents the realization of how much the particular conditions differ from the idealized ones described by theoretical knowledge), lack of sensitivity (which leads to underestimate or completely overlook the moral consequences of technical decisions). In all these cases, what is lacking is the ability to perceive the real shape of the situation scientific experts are facing.

Finally, we have highlighted the main differences between the epistemic intelligence that is a necessary condition for scientific expertise and the kind of intelligence that is often specific to political activity. In doing so, any attempt to reduce the former to the latter is stunted, thus vindicating the autonomy of expert judgment.