Head to head
Dennett’s Illusionism vs Russellian Monism
Dennett’s Illusionism and Russellian Monism, compared field by field from their entries in the Atlas.
At a glance
- Dennett’s Illusionism belongs to the Materialism family in Kuhn's Landscape of Consciousness, Russellian Monism to Neutral Monism.
- Dennett’s Illusionism treats consciousness as emergent; Russellian Monism treats it as fundamental.
- On AI consciousness, Dennett’s Illusionism says “Possible” and Russellian Monism says “Likely”.
- On life after death, Dennett’s Illusionism says “No” and Russellian Monism says “Conditional”.
- On meaning and purpose, Dennett’s Illusionism says “Humanistic only” and Russellian Monism says “Uncertain”.
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The claim
In brief
Dennett’s IllusionismDaniel Dennett argues that qualia, conceived as intrinsic, ineffable, private, and immediately known properties of experience, do not exist; they are philosophers’ inventions. Experience is real, but it is not what it seems from the inside: the brain’s unconscious processes produce a benign ‘user illusion’, and there is nothing to consciousness beyond the functions and dispositions involved.
Russellian MonismRussellian Monism posits that the physical world, described by physics only in terms of structure and relations, has an intrinsic nature (quiddities) that is phenomenal or proto-phenomenal. This approach integrates consciousness into the fundamental reality while avoiding the traditional problems of dualism and reductive materialism.
What consciousness is
Dennett’s IllusionismConsciousness is the functional activity of the brain, which presents itself to us as a user illusion. ‘There are no qualia.’
Russellian MonismConsciousness (or proto-consciousness) is the intrinsic, categorical nature or property ('quiddities' or 'inscrutables') underlying the relational structure of physical reality described by physics.
Big questions
Can AI be conscious?Differ
Dennett’s IllusionismPossibleSince consciousness is nothing beyond functions and dispositions, a machine with the right functional organization could have it; Dennett does not take this up here.
Russellian MonismLikelyIf consciousness is intrinsic to matter/energy, and the combination problem can be technologically harnessed, then artificial systems built from physical substrates should achieve consciousness.
Dennett’s IllusionismNoSince consciousness is a product of the brain’s processes, it ends when they end.
Russellian MonismConditionalSurvival is unlikely for the individual conscious aggregate unless the combination mechanism is preserved or the theory aligns with a cosmic monist view, as individual consciousness (the macroscopic combination) would likely dissolve upon biological death.
Dennett’s IllusionismNo position
Russellian MonismLikelyA single-stuff reality should permit virtual immortality, provided advanced technology can manipulate and harness the micropsychic properties to accurately reproduce the macroscopic conscious aggregate digitally.
Dennett’s IllusionismHumanistic onlyDennett’s materialism, and his place among the New Atheists, leave no room for cosmic purpose.
Russellian MonismUncertainMonisms generally allow for ultimate meaning/purpose/value. If RM takes a priority monist form with evolving consciousness, cosmic purpose may be implied.
Nature of mind
Ontology
Dennett’s IllusionismPhysicalism (illusionist)
Russellian MonismNeutral Monism or Physical Monism or Phenomenal Monism (variant dependent); fundamentally Monistic.
Mind and body
Dennett’s IllusionismConsciousness is wholly a product of the brain’s unconscious processes. Dennett rejects any inner, non-physical domain of felt properties.
Russellian MonismMind and physical world are deeply intertwined, with mental properties constituting the intrinsic nature of fundamental physical entities (the categorical bases of physical dispositions).
Fundamental or emergent
Dennett’s IllusionismEmergent
Russellian MonismPrimitive (at the fundamental level of reality, as phenomenal or proto-phenomenal properties of micro-entities).
Qualia
Dennett’s IllusionismThere are no qualia in the traditional sense. Dennett calls the supposed intrinsic, ineffable, private properties ‘nothing but philosophers’ inventions’.
Russellian MonismQualia correspond to the phenomenal properties (or their precursors) that constitute the intrinsic nature of fundamental matter.
How it works
Mechanism
Dennett’s IllusionismThe user illusion. As a computer’s desktop icons stand in for complex underlying processes, the brain presents itself to us in a simplified form we mistake for an inner world of qualities.
Russellian MonismThe key principle is the existence of unobserved, intrinsic categorical properties ('quiddities') of matter that are phenomenal, thereby grounding consciousness in fundamental reality without expanding the physical ontology of relations.
Where it is
Dennett’s IllusionismIn the brain’s unconscious processes, with no inner theater.
Russellian MonismLocated in the intrinsic properties of fundamental micro-level physical entities or potentially instantiated by the universe as a whole (priority monism).
What it does
Dennett’s IllusionismThe user illusion is benign: it lets us manage ourselves without access to the brain’s underlying complexity.
Russellian MonismAvoids the causal exclusion problem of dualism by embedding consciousness into the fundamental properties of the physical world, meaning consciousness underlies physical reality itself.
Evidence and criticism
Testability
Dennett’s IllusionismConceptually testable
Russellian MonismSpeculative/Conceptual. Its fundamental claims regarding intrinsic properties are generally beyond empirical access or mathematical modeling.
Tests so far
Dennett’s IllusionismNot stated
Russellian MonismNot stated
Criticisms
Dennett’s IllusionismDennett is often read as denying that experience exists, and critics reply that an illusion of experience would itself be an experience. Dennett resisted the eliminativist label, though many philosophers apply it to his rejection of qualia.
Russellian MonismThe primary challenge is the combination problem, which is critical: explaining how microphysical properties combine to form complex, integrated macro-level consciousness. If Panprotopsychism is assumed, it faces the problem of deriving consciousness (qualia) from proto-phenomenal properties.
Sources
Key sources
Dennett’s Illusionism
- Consciousness Explained, Daniel Dennett
- I've Been Thinking, Daniel Dennett (2023)
- Dennett’s Illusionism (Landscape of Consciousness), Daniel Dennett (1992)
Russellian Monism
- What is Russellian Monism?, T. Alter and Y. Nagasawa (2012)
- Russellian Monism, T. Alter and D. Pereboom (2019)
- Panpsychism and Panprotopsychism, D. Chalmers (2016)