Daniel Dennett

Daniel Clement Dennett III (March 28, 1942 – April 19, 2024) was an American philosopher and cognitive scientist. His research centered on the philosophy of mind, the philosophy of science, and the philosophy of biology, particularly as those fields relate to evolutionary biology and cognitive science.<ref>Beardsley, T. (1996) Profile: Daniel C. Dennett – Dennett's Dangerous Idea, Scientific American 274(2), 34–35.</ref>

Dennett was the co-director of the Center for Cognitive Studies and the Austin B. Fletcher Professor of Philosophy at Tufts University in Massachusetts.<ref name=":0">Template:CiteQ</ref> Dennett was a member of the editorial board for The Rutherford Journal<ref>Template:Cite web</ref> and a co-founder of The Clergy Project.<ref>Template:Cite web</ref>

A vocal atheist and secularist, Dennett has been described as "one of the most widely read and debated American philosophers".<ref name=kandell_04192024>Template:Cite news</ref> He was referred to as one of the "Four Horsemen" of New Atheism, along with Richard Dawkins, Sam Harris, and Christopher Hitchens.

Early life and education

Template:Atheism sidebar Daniel Clement Dennett III was born on March 28, 1942, in Boston, Massachusetts,<ref>Template:Cite web</ref> the son of Ruth Marjorie (née Leck; 1903–1971) and Daniel Clement Dennett Jr. (1910–1947).<ref>Template:Cite web</ref><ref>Template:Citation</ref><ref>Template:Cite web</ref>

Dennett spent part of his childhood in Lebanon,<ref name=":0" /> where, during World War II, his father, who had a PhD in Islamic studies from Harvard University, was a covert counter-intelligence agent with the Office of Strategic Services posing as a cultural attaché to the American Embassy in Beirut. His mother, an English major at Carleton College, went for a master's degree at the University of Minnesota before becoming an English teacher at the American Community School in Beirut.<ref name="Spydad">Template:Citation</ref> In 1947, his father was killed in a plane crash in Ethiopia.<ref>Template:Cite web</ref> Shortly after, his mother took him back to Massachusetts.<ref>Template:Cite news</ref> Dennett's sister is the investigative journalist Charlotte Dennett.<ref name="Spydad"/>

Dennett said that he was first introduced to the notion of philosophy while attending Camp Mowglis in Hebron, New Hampshire, at age 11, when a camp counselor said to him, "You know what you are, Daniel? You're a philosopher."<ref>Template:Cite web</ref>

Dennett graduated from Phillips Exeter Academy in 1959, and spent one year at Wesleyan University before receiving his BA degree in philosophy at Harvard University in 1963.<ref name=":0" /> There, he was a student of Willard Van Orman Quine.<ref name=":0" /> He had decided to transfer to Harvard after reading Quine's From a Logical Point of View and, thinking that Quine was wrong about some things, decided, as he said "as only a freshman could, that I had to go to Harvard and confront this man with my corrections to his errors!"<ref name="beenThinking">Template:Cite book</ref><ref name="natureObit" />

Academic career

In 1965, Dennett received his DPhil in philosophy at the University of Oxford, where he studied under Gilbert Ryle and was a member of Hertford College.<ref name="In-depth interview with Daniel Dennett">Template:Citation</ref><ref name=":0" /> His doctoral dissertation was entitled The Mind and the Brain: Introspective Description in the Light of Neurological Findings; Intentionality.<ref>Template:Cite thesis</ref>

From 1965 to 1971, Dennett taught at the University of California, Irvine, before moving to Tufts University where he taught for many decades.<ref name="kandell_04192024" /><ref name=":0" /> He also spent periods visiting at Harvard University and several other universities.<ref>Template:Cite web</ref> Dennett described himself as "an autodidact—or, more properly, the beneficiary of hundreds of hours of informal tutorials on all the fields that interest me, from some of the world's leading scientists".<ref name="what_I_want_to_be">Template:Citation</ref>

Throughout his career, he was an interdisciplinarian who argued for "breaking the silos of knowledge", and he collaborated widely with computer scientists, cognitive scientists, and biologists.<ref name="natureObit" />

Dennett was the recipient of a Fulbright Fellowship and two Guggenheim Fellowships.

Philosophical views

Free will vs Determinism

While he was a confirmed compatibilist on free will, in "On Giving Libertarians What They Say They Want"—chapter 15 of his 1978 book Brainstorms<ref>Brainstorms: Philosophical Essays on Mind and Psychology, MIT Press (1981), pp. 286–99.</ref>—Dennett articulated the case for a two-stage model of decision making in contrast to libertarian views.

While other philosophers have developed two-stage models, including William James, Henri Poincaré, Arthur Compton, and Henry Margenau, Dennett defended this model for the following reasons:

Leading libertarian philosophers such as Robert Kane have rejected Dennett's model, specifically that random chance is directly involved in a decision, on the basis that they believe this eliminates the agent's motives and reasons, character and values, and feelings and desires. They claim that, if chance is the primary cause of decisions, then agents cannot be liable for resultant actions. Kane says:

Mind

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Dennett in 2008

Dennett was a proponent of materialism in the philosophy of mind. He argued that mental states, including consciousness, are entirely the result of physical processes in the brain. In his book Consciousness Explained (1991), Dennett presented his arguments for a materialist understanding of consciousness, rejecting Cartesian dualism in favor of a physicalist perspective.<ref name="Dennett1991">Template:Cite book</ref>

Dennett remarked in several places (such as "Self-portrait", in Brainchildren) that his overall philosophical project remained largely the same from his time at Oxford onwards. He was primarily concerned with providing a philosophy of mind that is grounded in empirical research. In his original dissertation, Content and Consciousness, he broke up the problem of explaining the mind into the need for a theory of content and for a theory of consciousness. His approach to this project also stayed true to this distinction. Just as Content and Consciousness has a bipartite structure, he similarly divided Brainstorms into two sections. He would later collect several essays on content in The Intentional Stance and synthesize his views on consciousness into a unified theory in Consciousness Explained. These volumes respectively form the most extensive development of his views.<ref>Template:Citation.</ref>

In chapter 5 of Consciousness Explained, Dennett described his multiple drafts model of consciousness. He stated that, "all varieties of perception—indeed all varieties of thought or mental activity—are accomplished in the brain by parallel, multitrack processes of interpretation and elaboration of sensory inputs. Information entering the nervous system is under continuous 'editorial revision.'" (p. 111). Later he asserts, "These yield, over the course of time, something rather like a narrative stream or sequence, which can be thought of as subject to continual editing by many processes distributed around the brain, ..." (p. 135, emphasis in the original).

In this work, Dennett's interest in the ability of evolution to explain some of the content-producing features of consciousness is already apparent, and this later became an integral part of his program. He stated his view is materialist and scientific, and he presents an argument against qualia; he argued that the concept of qualia is so confused that it cannot be put to any use or understood in any non-contradictory way, and therefore does not constitute a valid refutation of physicalism.

This view is rejected by neuroscientists Gerald Edelman, Antonio Damasio, Vilayanur Ramachandran, Giulio Tononi, and Rodolfo Llinás, all of whom state that qualia exist and that the desire to eliminate them is based on an erroneous interpretation on the part of some philosophers regarding what constitutes science.<ref>Damasio, A. (1999). The feeling of what happens. Harcourt Brace.</ref><ref>Edelman, G., Gally, J. & Baars, B. (2011). "Biology of consciousness". Frontiers In Psychology, 2, 4, 1–6.</ref><ref>Edelman, G. (1992). Bright air, brilliant fire. BasicBooks.</ref><ref>Edelman, G. (2003). "Naturalizing consciousness: A theoretical framework". Proceedings of the National Academy of Sciences, 100, 9, 5520–24.</ref><ref>Llinás, R. (2003). I of the Vortex. MIT Press, pp. 202–07.</ref><ref>Oizumi, M., Albantakis, L., & Tononi, G. (2014). From the phenomenology to the mechanisms of consciousness: Integrated information theory 3.0. PLOS Computational Biology, 10, e1003588.</ref><ref>Overgaard, M., Mogensen, J. & Kirkeby-Hinrup, A. (Eds.) (2021). Beyond neural correlates of consciousness. Routledge Taylor & Francis.</ref><ref>Ramachandran, V. & Hirstein, W. (1997). Three laws of qualia. What neurology tells us about the biological functions of consciousness, qualia and the self. Journal of Consciousness Studies, 4 (5–6), pp. 429–58.</ref><ref>Tononi, G., Boly, M., Massimini, M., & Koch, C. (2016). "Integrated information theory: From consciousness to its physical substrate". Nature Reviews Neuroscience, 17, 450–61.</ref>

Dennett's strategy mirrored his teacher Ryle's approach of redefining first-person phenomena in third-person terms, and denying the coherence of the concepts which this approach struggles with.

Dennett self-identified with a few terms: Template:Blockquote

In Consciousness Explained, he affirmed "I am a sort of 'teleofunctionalist', of course, perhaps the original teleofunctionalist". He went on to say, "I am ready to come out of the closet as some sort of verificationist." (pp. 460–61).

Dennett was credited<ref>Doherty, M. J. (2009). Theory of Mind: How Children Understand Others’ Thoughts and Feelings. Psychology Press.</ref> with inspiring false belief tasks used in developmental psychology. He noted that when four-year-olds watch the Punch and Judy puppet show, they laugh because they know that they know more about what's going on than one of the characters does:<ref>Dennett, D. C. (1978). Beliefs about Beliefs (commentary on Premack, et al.). Behavioral and Brain Sciences, 1, pp. 568-70.</ref>

Evolutionary debate

Much of Dennett's work from the 1990s onwards was concerned with fleshing out his previous ideas by addressing the same topics from an evolutionary standpoint, from what distinguishes human minds from animal minds (Kinds of Minds),<ref name=":0" /> to how free will is compatible with a naturalist view of the world (Freedom Evolves).<ref>Template:Cite journal</ref>

Dennett saw evolution by natural selection as an algorithmic process (though he spelt out that algorithms as simple as long division often incorporate a significant degree of randomness).<ref>Darwin's Dangerous Idea: Evolution and the Meanings of Life, Simon & Schuster, 1996, pp. 52–60, Template:ISBN.</ref> This idea is in conflict with the evolutionary philosophy of paleontologist Stephen Jay Gould, who preferred to stress the "pluralism" of evolution (i.e., its dependence on many crucial factors, of which natural selection is only one).Template:Cn

Dennett's views on evolution are identified as being strongly adaptationist, in line with his theory of the intentional stance, and the evolutionary views of biologist Richard Dawkins. In Darwin's Dangerous Idea, Dennett showed himself even more willing than Dawkins to defend adaptationism in print, devoting an entire chapter to a criticism of the ideas of Gould. This stems from Gould's long-running public debate with E. O. Wilson and other evolutionary biologists over human sociobiology and its descendant evolutionary psychology, which Gould and Richard Lewontin opposed, but which Dennett advocated, together with Dawkins and Steven Pinker.<ref>Although Dennett expressed criticism of human sociobiology, calling it a form of "greedy reductionism", he was generally sympathetic towards the explanations proposed by evolutionary psychology. Gould also is not one-sided, and writes: "Sociobiologists have broadened their range of selective stories by invoking concepts of inclusive fitness and kin selection to solve (successfully I think) the vexatious problem of altruism—previously the greatest stumbling block to a Darwinian theory of social behavior... Here sociobiology has had and will continue to have success. And here I wish it well. For it represents an extension of basic Darwinism to a realm where it should apply." Gould, 1980. "Sociobiology and the Theory of Natural Selection". Template:Webarchive. In G. W. Barlow and J. Silverberg, eds., Sociobiology: Beyond Nature/Nurture? Boulder CO: Westview Press, pp. 257–69.</ref> Gould argued that Dennett overstated his claims and misrepresented Gould's, to reinforce what Gould describes as Dennett's "Darwinian fundamentalism".<ref>Evolution: The Pleasures of Pluralism. Template:Webarchive – Stephen Jay Gould's review of Darwin's Dangerous Idea, June 26, 1997.</ref>

Dennett's theories have had a significant influence on the work of evolutionary psychologist Geoffrey Miller.Template:Cn

Religion and morality

Dennett was a vocal atheist and secularist, a member of the Secular Coalition for America advisory board,<ref>Template:Cite web</ref> and a member of the Committee for Skeptical Inquiry, as well as an outspoken supporter of the Brights movement. Dennett was referred to as one of the "Four Horsemen of New Atheism", along with Richard Dawkins, Sam Harris, and the late Christopher Hitchens.<ref>Template:Cite web</ref>

File:Solidarity message to ex-Muslims - Daniel Dennett.webm

Dennett sends a solidarity message to ex-Muslims convening in London in July 2017.

In Darwin's Dangerous Idea, Dennett wrote that evolution can account for the origin of morality. He rejected the idea that morality being natural to us implies that we should take a skeptical position regarding ethics, noting that what is fallacious in the naturalistic fallacy is not to support values per se, but rather to rush from facts to values.Template:Cn

In his 2006 book, Breaking the Spell: Religion as a Natural Phenomenon, Dennett attempted to account for religious belief naturalistically, explaining possible evolutionary reasons for the phenomenon of religious adherence. In this book he declared himself to be "a bright", and defended the term.Template:Cn

He did research into clerics who are secretly atheists and how they rationalize their works. He found what he called a "don't ask, don't tell" conspiracy because believers did not want to hear of loss of faith. This made unbelieving preachers feel isolated, but they did not want to lose their jobs and church-supplied lodgings. Generally, they consoled themselves with the belief that they were doing good in their pastoral roles by providing comfort and required ritual.<ref name="Dennett2010">[1] Template:Webarchive, "Preachers Who Are Not Believers," Evolutionary Psychology, Vol. 8, Issue 1, March 2010, pp. 122–50, Template:ISSN.</ref> The research, with Linda LaScola, was further extended to include other denominations and non-Christian clerics.<ref>Podcast: interview with Daniel Dennett. Further developments of the research: pastors, priests, and an Imam who are closet atheists. Template:Webarchive.</ref> The research and stories Dennett and LaScola accumulated during this project were published in their 2013 co-authored book, Caught in the Pulpit: Leaving Belief Behind.<ref>Template:Cite news</ref>

Memetics, postmodernism and deepity

Dennett wrote about and advocated the notion of memetics as a philosophically useful tool, his last work on this topic being his "Brains, Computers, and Minds", a three-part presentation through Harvard's MBB 2009 Distinguished Lecture Series.Template:Cn

Dennett was critical of postmodernism, having said: Template:Blockquote

Dennett adopted and somewhat redefined the term "deepity", originally coined by Miriam Weizenbaum.<ref>Dennett, Daniel. Intuition Pumps and Other Tools for Thinking. W. W. Norton & Company, 2013 p. 56.Template:ISBN?</ref> Dennett used "deepity" for a statement that is apparently profound, but is actually trivial on one level and meaningless on another. Generally, a deepity has two (or more) meanings: one that is true but trivial, and another that sounds profound and would be important if true, but is actually false or meaningless. Examples are "Que será será!", "Beauty is only skin deep!", "The power of intention can transform your life."<ref>Template:Cite web</ref> The term has been cited many times.

Artificial intelligence

While approving of the increase in efficiency that humans reap by using resources such as expert systems in medicine or GPS in navigation, Dennett saw a danger in machines performing an ever-increasing proportion of basic tasks in perception, memory, and algorithmic computation because people may tend to anthropomorphize such systems and attribute intellectual powers to them that they do not possess.<ref>From Bacteria to Bach and Back: The Evolution of Minds, Daniel C. Dennett 2017 Penguin p. 402.</ref> He believed the relevant danger from artificial intelligence (AI) is that people will misunderstand the nature of basically "parasitic" AI systems, rather than employing them constructively to challenge and develop the human user's powers of comprehension.<ref>From Bacteria to Bach and Back: The Evolution of Minds, Daniel C. Dennett 2017 Penguin pp. 402–3.Template:ISBN?</ref>

In the 1990s, Dennett collaborated with a group of computer scientists at MIT to attempt to develop a humanoid, conscious robot, named "Cog".<ref name="boag">Template:Cite web</ref><ref name="natureObit" /> The project did not produce a conscious robot, but Dennett argued that in principle it could have.<ref name="boag"/>

As given in his penultimate book, From Bacteria to Bach and Back, Dennett's views were contrary to those of Nick Bostrom.<ref>From Bacteria to Bach and Back: The Evolution of Minds, Daniel C. Dennett 2017 Penguin p. 400.Template:ISBN?</ref> Although acknowledging that it is "possible in principle" to create AI with human-like comprehension and agency, Dennett maintained that the difficulties of any such "strong AI" project would be orders of magnitude greater than those raising concerns have realized.<ref>From Bacteria to Bach and Back: The Evolution of Minds, Daniel C. Dennett 2017 Penguin pp. 164–5, 399–400.</ref> Dennett believed, as of the book's publication in 2017, that the prospect of superintelligence (AI massively exceeding the cognitive performance of humans in all domains) was at least 50 years away, and of far less pressing significance than other problems the world faces.<ref>From Bacteria to Bach and Back: The Evolution of Minds, Daniel C. Dennett 2017 Penguin pp. 399–400.</ref>

Realism

Dennett was known for his nuanced stance on realism. While he supported scientific realism, advocating that entities and phenomena posited by scientific theories exist independently of our perceptions, he leant towards instrumentalism concerning certain theoretical entities, valuing their explanatory and predictive utility, as showing in his discussion of real patterns.<ref name="Dennett, D. C. 1991">Dennett, D. C. (1991). Real Patterns. The Journal of Philosophy, 88(1), 27-51.</ref> Dennett's pragmatic realism underlines the entanglement of language, consciousness, and reality. He posited that our discourse about reality is mediated by our cognitive and linguistic capacities, marking a departure from Naïve realism.<ref>Dennett, D. C. (1991). Consciousness Explained. Little, Brown and Co.</ref>

Realism and instrumentalism

Dennett's philosophical stance on realism was intricately connected to his views on instrumentalism and the theory of real patterns.<ref name="Dennett, D. C. 1991"/> He drew a distinction between illata, which are genuine theoretical entities like electrons, and abstracta, which are "calculation bound entities or logical constructs" such as centers of gravity and the equator, placing beliefs and the like among the latter. One of Dennett's principal arguments was an instrumentalistic construal of intentional attributions, asserting that such attributions are environment-relative.<ref>Template:Cite journal</ref>

In discussing intentional states, Dennett posited that they should not be thought of as resembling theoretical entities, but rather as logical constructs, avoiding the pitfalls of intentional realism without lapsing into pure instrumentalism or even eliminativism.<ref>Template:Cite journal</ref> His instrumentalism and anti-realism were crucial aspects of his view on intentionality, emphasizing the centrality and indispensability of the intentional stance to our conceptual scheme.<ref>Template:Cite web</ref>

Recognition

Dennett was the recipient of a Fellowship at the Center for Advanced Study in the Behavioral Sciences.<ref>Template:Cite web</ref> He was a Fellow of the Committee for Skeptical Inquiry and a Humanist Laureate of the International Academy of Humanism.<ref>Template:Cite web</ref> He was named 2004 Humanist of the Year by the American Humanist Association.<ref>Template:Cite web</ref><ref name=":0" /> In 2006, Dennett received the Golden Plate Award of the American Academy of Achievement.<ref>Template:Cite web</ref> He became a Fellow of the American Association for the Advancement of Science in 2009.<ref name=":0" />

In February 2010, he was named to the Freedom From Religion Foundation's Honorary Board of distinguished achievers.<ref>Template:Cite web</ref> In 2012, he was awarded the Erasmus Prize, an annual award for a person who has made an exceptional contribution to European culture, society or social science, "for his ability to translate the cultural significance of science and technology to a broad audience".<ref>Template:Cite web</ref><ref name=":0" /> In 2018, he was awarded an honorary doctorate (Dr.h.c.) by the Radboud University in Nijmegen, Netherlands, for his contributions to and influence on cross-disciplinary science.<ref>Template:Cite web</ref>

Personal life

In 1962, Dennett married Susan Bell.<ref>Template:Cite web</ref> They lived in North Andover, Massachusetts, and had a daughter, a son, and six grandchildren.<ref name=kandell_04192024/><ref>Template:Cite web</ref> He was an avid sailor<ref>Template:Cite news</ref> who loved sailing Xanthippe, his 13-meter sailboat. He also played many musical instruments and sang at glee clubs.<ref name="natureObit">Template:Cite journal</ref>

Dennett died of interstitial lung disease at Maine Medical Center on April 19, 2024, at the age of 82.<ref name="kandell_04192024" /><ref>Template:Cite web</ref>

Selected works

• Brainstorms: Philosophical Essays on Mind and Psychology (MIT Press 1981) (Template:ISBN)
• Elbow Room: The Varieties of Free Will Worth Wanting (MIT Press 1984) – on free will and determinism (Template:ISBN)
• Content and Consciousness (Routledge & Kegan Paul Books Ltd; 2nd ed. 1986) (Template:ISBN)
• Template:Citation (First published 1987)
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• Darwin's Dangerous Idea: Evolution and the Meanings of Life (Simon & Schuster; reprint edition 1996) (Template:ISBN)
• Kinds of Minds: Towards an Understanding of Consciousness (Basic Books 1997) (Template:ISBN)
• Brainchildren: Essays on Designing Minds (Representation and Mind) (MIT Press 1998) (Template:ISBN) – A Collection of Essays 1984–1996
• Template:Cite book
• Freedom Evolves (Viking Press 2003) (Template:ISBN)
• Sweet Dreams: Philosophical Obstacles to a Science of Consciousness (MIT Press 2005) (Template:ISBN)
• Breaking the Spell: Religion as a Natural Phenomenon (Penguin Group 2006) (Template:ISBN).
• Neuroscience and Philosophy: Brain, Mind, and Language (Columbia University Press 2007) (Template:ISBN), co-authored with Max Bennett, Peter Hacker, and John Searle
• Science and Religion: Are They Compatible? (Oxford University Press 2010) (Template:ISBN), co-authored with Alvin Plantinga
• Intuition Pumps and Other Tools for Thinking (W. W. Norton & Company 2013) (Template:ISBN)
• Caught in the Pulpit: Leaving Belief Behind (Pitchstone Publishing – 2013) (Template:ISBN) co-authored with Linda LaScola
• Inside Jokes: Using Humor to Reverse-Engineer the Mind (MIT Press – 2011) (Template:ISBN), co-authored with Matthew M. Hurley and Reginald B. Adams Jr.
• From Bacteria to Bach and Back: The Evolution of Minds (W. W. Norton & Company – 2017) (Template:ISBN)
• I've Been Thinking (Allen Lane 2023) (Template:ISBN)

See also

• The Atheism Tapes
• Cartesian materialism
• Cognitive biology
• Evolutionary psychology of religion
• Jean Nicod Prize

Further reading

• Brockman, John (1995). The Third Culture. New York: Simon & Schuster. Template:ISBN (Discusses Dennett and others)
• Brook, Andrew and Don Ross (eds.) (2000). Daniel Dennett. New York: Cambridge University Press. Template:ISBN
• Dennett, Daniel C. (1997). "True Believers: The Intentional Strategy and Why it Works" in John Haugeland, Mind Design II: Philosophy, Psychology, Artificial Intelligence. Massachusetts: Massachusetts Institute of Technology. Template:ISBN (reprint of 1981 publication).
• Elton, Matthew (2003). Dennett: Reconciling Science and Our Self-Conception. Cambridge, UK Polity Press. Template:ISBN
• Hacker, P. M. S. and M. R. Bennett (2003). Philosophical Foundations of Neuroscience. Oxford, and Malden, Mass: Blackwell Template:ISBN (Has an appendix devoted to a strong critique of Dennett's philosophy of mind)
• Ross, Don, Andrew Brook and David Thompson (eds.) (2000). Dennett's Philosophy: A Comprehensive Assessment Cambridge, Massachusetts: MIT Press. Template:ISBN
• Symons, John (2000). On Dennett. Belmont, CA: Wadsworth. Template:ISBN

External links

• Daniel Dennett at Tufts University
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• Searchable bibliography of Dennett's works
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