Skip to main content

Understanding Ignorance

In this post, Professor and Chair of Philosophy at Gettysburg College, Daniel DeNicola, introduces his just-released book, Understanding Ignorance: The Surprising Impact of What We Do Not Know (MIT, August 2017). He writes on a range of ethical and epistemic issues, usually related to education. His new book grew from an earlier work, Learning to Flourish: A Philosophical Exploration of Liberal Education (Continuum/Bloomsbury, 2012).



Ignorance, it seems, is trending. Political ignorance has become some so severe that the democratic ideal of an informed citizenry seems quaint. Willful ignorance is the social diagnosis of the moment: critics found to be implicated in prejudice, privilege, ideology, and information cocoons. Ignorance is used both as accusation and excuse. In the broadest sense, it is a ineluctable feature of the human condition.

And yet, philosophers have ignored ignorance. While occupied with the sources and structure of knowledge, epistemologists for centuries have dismissed ignorance as simply the negation of the proposition, “S knows that p.”

Within the last two decades, however, scholarship on various aspects of ignorance has popped up in several disciplines. My book, Understanding Ignorance, draws on these multi-disciplinary works and presents what is likely the first comprehensive, philosophical treatment of ignorance—comprehensive, in that it addresses conceptual, epistemological, ethical, and social dimensions.

My explication is organized by four spatial metaphors: ignorance as a place or state, as boundary, as limit, and as horizon. Among the topics discussed are the relation of ignorance and innocence, the technique of mapping our ignorance, and our intellectual tools for ignorance management. I also offer a critique of “the virtues of ignorance” as proposed by various writers.

I conclude that ignorance has significant philosophical import and a structure perhaps more complex than that of knowledge. (After all, if genuine knowledge requires, say, four conditions, then the failure to meet any one or any combination describes a different form of ignorance.) I argue that we have many ways of constructing our own (and others’) ignorance, both deliberately and inadvertently—a few of which are morally permissible, even obligatory.





Although Understanding Ignorance is intended to be accessible to a non-specialist readership, it builds a critique targeted against traditional analytic epistemology: it has been focused on propositional knowledge and the “context of justification,” ignoring other forms of knowing and the “context of discovery”; it has concentrated on the individual knower in solo acts of cognition, ignoring the dynamics of epistemic communities; and has been disinterested in many values issues that arise from the acquisition, content, purpose, and context of knowing and not-knowing.


In reaction, I embrace virtue epistemology, along with insights from social and feminist epistemology—with a richer treatment of ignorance. Thus, I advocate a re-centering of the field on the interaction of knowledge and ignorance.

Popular posts from this blog

Delusions in the DSM 5

This post is by Lisa Bortolotti. How has the definition of delusions changed in the DSM 5? Here are some first impressions. In the DSM-IV (Glossary) delusions were defined as follows: Delusion. A false belief based on incorrect inference about external reality that is firmly sustained despite what almost everyone else believes and despite what constitutes incontrovertible and obvious proof or evidence to the contrary. The belief is not one ordinarily accepted by other members of the person's culture or subculture (e.g., it is not an article of religious faith). When a false belief involves a value judgment, it is regarded as a delusion only when the judgment is so extreme as to defy credibility.

Motivated Reasoning in Science

Today's post is by Josh May (University of Alabama, Birmingham). In this post, he talks about one of his papers published in Synthese and entitled " Bias in Science ". Josh May Much discussion of the replication crisis in science has focused on the social sciences, particularly psychology. A common narrative is that the social sciences are particularly susceptible to powerful biases, such as moral and political ideology. I argue instead for a parity thesis: all areas of science are subject to bias, through the general psychological mechanism of motivated reasoning . This provides a unified framework for understanding how values influence the entire scientific enterprise. The scientific process involves numerous decisions that can be influenced by one's values--including moral, political, and prudential values--which manifest as goals or motivations. A researcher wants badly, say, to publish in a prestigious journal in order to either advance her career or maintain ...

Models of Madness

In today's post John Read  (in the picture above) presents the recent book he co-authored with Jacqui Dillon , titled Models of Madness: Psychological, Social and Biological Approaches to Psychosis. My name is John Read. After 20 years working as a Clinical Psychologist and manager of mental health services in the UK and the USA, mostly with people experiencing psychosis, I joined the University of Auckland, New Zealand, in 1994. There I published over 100 papers in research journals, primarily on the relationship between adverse life events (e.g., child abuse/neglect, poverty etc.) and psychosis. I also research the negative effects of bio-genetic causal explanations on prejudice, and the role of the pharmaceutical industry in mental health. In February I moved to Melbourne and I now work at Swinburne University of Technology.  I am on the on the Executive Committee of the International Society for Psychological and Social Approaches to Psychosis and am the Editor...