Podcast brief
Dennett's Rejection of Qualia and the Self
Four speakers work through the closing chapters of Daniel Dennett's Consciousness Explained, on qualia, the self, and Nagel's bat.
A Stoa brief of an episode from The Partially Examined Life
Ep. 400: Dennett Rejects Qualia (Part One)
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The brief
This conversation works through the final chapters of Daniel Dennett's Consciousness Explained, tracking his rejection of qualia and his deflationary account of the self. The discussion opens by distinguishing Ned Block's access consciousness, information available to drive behavior and report, from phenomenal consciousness, the further "lights being on" quality of experience that critics say Dennett's model leaves unexplained.
From there the group traces Dennett's claim that qualia is a modern descendant of Locke's secondary qualities, properties like color that belong to subjective experience rather than to objects themselves. Dennett argues that this picture only makes sense if there is a Cartesian theater where such qualities get displayed, and since he has already rejected that theater, qualia loses its footing. The group tests this using Dennett's color discrimination argument, which treats comparing colors as functionally the same kind of operation a sensor could perform. One speaker presses the others to name a feature of color experience not captured by discrimination, memory, and report, and no one supplies one, though the challenge is not treated as settled.
A real tension runs through the episode. One speaker worries that this dispositional picture collapses into behaviorism, leaving no room for anything felt from the inside, while others reply that Dennett is not denying seemings, only denying that a seeming requires an inner mental screen. A live demonstration, glancing at a blue object and reporting its color, is used to probe this directly, without full agreement on what it shows.
The same deflationary move applies to the self, which Dennett treats as a "center of narrative gravity": an abstraction like a center of gravity, not a literal witness, available only to creatures capable of constructing a narrative about themselves. The conversation closes on chapter 14, where Dennett flatly denies Nagel's claim that no amount of third-person knowledge could tell us what it is like to be a bat. The group splits on whether this dissolves the hard problem or dodges it, a split worth sitting with rather than resolving too quickly.
Strongest arguments
Access consciousness versus phenomenal consciousness
2:49One speaker introduces Ned Block's distinction between access consciousness, where information is available to drive behavior and report, and phenomenal consciousness, the further quality of experience. The group debates whether Dennett's multiple drafts model, which treats consciousness as information becoming globally accessible, captures anything beyond access consciousness.
Qualia as an heir to secondary qualities
7:05One speaker explains that Dennett traces qualia back to Locke's distinction between primary qualities like size and shape and secondary qualities like color, located in subjective experience rather than in objects. Dennett argues that once the various names philosophers use for qualia are stripped away, the notion depends on a Cartesian theater he has already rejected.
The color discrimination argument
15:45Dennett argues, as reconstructed by the group, that comparing colors, whether side by side or in the mind's eye, is functionally the same kind of discrimination a sensor could perform. One speaker presses the others to name a feature of color experience not captured by discrimination, comparison, memory, or verbal report, and none is supplied, though one speaker insists this does not resolve the question.
Worry that Dennett collapses into behaviorism
20:51One speaker worries that Dennett's talk of dispositional and discriminatory states sounds like behaviorism, denying anything it is like from the inside beyond how a creature is disposed to react. That speaker agrees the hard problem does not exist but is nervous that no room is left for a felt quality of experience, for instance what it is like to be a bat or a fish.
The self as a center of narrative gravity
27:19The group presents Dennett's view that the self is not a witness or homunculus but an abstraction, comparable to a center of gravity, that organizes and explains behavior without being a literal thing. Only a creature with sufficient narrative and linguistic capacity can construct such a self, which is why Dennett denies that cockroaches have one.
Does Dennett deny seeming itself, or only the Cartesian theater version of it
31:40One speaker raises the worry that Dennett's position looks self-contradictory if it denies that anything seems any way at all, since a seeming with no content is not a coherent denial. Others argue Dennett is not denying seemings as such but denying that a seeming requires an inner mental screen, so that seeming pink just is a certain discriminatory or judgmental activity.
A live experiment on seeing blue
40:46One speaker runs a real time demonstration, asking another to glance at a blue object and report its color, to test whether ordinary color perception involves comparing the object to a remembered swatch or simply issuing a judgment that it is blue. The group uses this to probe whether seeming requires anything beyond direct discrimination, with one speaker resisting the setup and another concluding that qualia claims add nothing discrimination plus judgment does not already capture.
Nagel's bat and what third person knowledge can tell us
49:21Turning to chapter 14, the group discusses Dennett's claim that although we cannot become a bat, we can know a great deal about bat consciousness through researchable facts about its perceptual and behavioral systems, using the analogy of recovering what it was like to hear Bach's cantatas in Leipzig. Dennett flatly denies Nagel's claim that no amount of third-person knowledge could tell us what it is like to be a bat, arguing that whatever remains inaccessible is a distinction that makes no difference.
Disagreements
Whether color is the right test case for qualia
18:17Part of the group works through Dennett's color discrimination argument as adequate to explain color experience, while one speaker worries that color may be a poorly chosen example and proposes pain, mental exhaustion, or valence states as better tests of what qualia advocates mean by felt experience.
Whether Dennett denies seeming altogether
31:40Some speakers maintain that Dennett accepts that there are seemings and only denies that seeming requires a Cartesian mental screen, so that seeming just is a form of discriminatory activity from a first person vantage point. Others push back that this reading is hard to square with passages where Dennett appears to deny that there is any picturing or mental space at all, leaving the group visibly unresolved.
Dennett versus Nagel on what third-person facts can tell us
46:43The group presents Dennett's flat denial of Nagel's claim that no amount of third-person knowledge could reveal what it is like to be a bat, arguing that whatever remains beyond third-person facts is a distinction without a difference. One speaker voices sympathy for the opposing intuition, associated with Nagel, Block, and Chalmers, that firsthand echolocation experience could never be captured this way no matter how much third-person data one has.
Philosophers and works discussed
- Daniel Dennett
- Thomas Nagel
- Consciousness Explained By Daniel C. Dennett.
Questions this episode answers
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What is the difference between access consciousness and phenomenal consciousness?
2:49Access consciousness is when information is available to an organism to drive behavior, be reported, and be recalled later. Phenomenal consciousness, associated with Ned Block, is the further quality of experience that critics say access consciousness does not capture.
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Why does Dennett think qualia is just a version of Locke's secondary qualities?
7:05Dennett argues that qualia, under its various names, recapitulates Locke's secondary qualities, properties like color attributed to subjective experience rather than to objects. He holds that this picture depends on a Cartesian theater where such qualities would be displayed, a model he has already rejected.
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What is Dennett's center of narrative gravity theory of the self?
27:19Dennett treats the self not as a literal witness or homunculus but as an abstraction, comparable to a center of gravity, that organizes and explains a creature's behavior. Only a creature with sufficient narrative and linguistic capacity can construct such a self, which is why Dennett denies that simple organisms like cockroaches have one.
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Does Dennett deny that there is something it is like to see color?
31:40Dennett is presented as accepting that there seem to be qualia, but denying that this seeming requires an inner Cartesian screen or mental picture. On this reading, seeming pink just is a form of discriminatory or judgmental brain activity, though some in the group worry this still amounts to denying seeming altogether.
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How does Dennett respond to Nagel's argument about what it is like to be a bat?
49:21Dennett flatly denies Nagel's claim that no amount of third-person knowledge could tell us what it is like to be a bat, arguing that researchable facts about a bat's perceptual and behavioral systems can get us a great deal of the way there, using the analogy of reconstructing what it was like to hear Bach's cantatas in Leipzig. He concludes that whatever remains inaccessible makes no theoretically important difference.
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What does it mean to say consciousness comes in degrees for Dennett?
5:01Dennett is described as holding that consciousness is not all-or-nothing but comes in degrees, so that a thermostat is conscious in the lowest possible sense by registering temperature, and organisms like cockroaches have more, building up through self-stimulating loops of dumb sub-conscious components to full human consciousness.