Head to head
Emergence vs Sam Harris
Emergence (Principle of Consciousness) and S. Harris’s Mystery of Consciousness, compared field by field from their entries in the Atlas.
At a glance
- Emergence belongs to the Materialism family in Kuhn's Landscape of Consciousness, Sam Harris to Challenge.
- On AI consciousness, Emergence says “Conditional” and Sam Harris says “No”.
- On life after death, Emergence says “Conditional” and Sam Harris says “No”.
- On mind uploading, Emergence says “Conditional” and Sam Harris says “No”.
- On meaning and purpose, Emergence says “Uncertain” and Sam Harris says “Humanistic only”.
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The claim
In brief
EmergenceEmergence is the philosophical claim that qualitatively new properties, such as consciousness or psychological states, arise from underlying physical properties governed entirely by physical laws. It is distinguished primarily into weak emergence, which is reducible in principle, and strong emergence, which is fundamentally non-reducible and may necessitate new physical laws.
Sam HarrisThis perspective, offered as a challenge rather than a prescriptive theory, frames consciousness as an unbridgeable mystery that cannot be solved by purely physical means. Harris argues that physical descriptions are 'mute' regarding subjective experience; the only thing attesting to sentience is consciousness itself, creating a fundamental explanatory gap. He remains pessimistic that science can dispel this mystery.
What consciousness is
EmergenceConsciousness is identified as a qualitatively novel property or psychological state arising from physical properties. This concept defines the relationship between mind and matter based on reducibility or non-reducibility to fundamental physics.
Sam HarrisConsciousness is identified as subjectivity or sentience, which is fundamentally mysterious and unexplainable by purely physical processes.
Big questions
Can AI be conscious?Differ
EmergenceConditionalIf consciousness is weakly emergent, AI consciousness is certain given sufficient complexity. If strongly emergent, AI consciousness is still possible if non-physical properties emerge from non-biological physical complexity, depending on the meta-psychophysical laws involved.
Sam HarrisNoIf consciousness is irreducible subjectivity missing from physical descriptions, then advanced computation (AI, which is purely physical complexity) will fail to generate genuine sentience.
EmergenceConditionalWeak emergence, being close to Materialism, precludes survival. Strong emergence, particularly in the form of Emergent Dualism, could theoretically generate a nonphysical substance (mind/soul) dependent on, but not strictly identical to, the physical brain, allowing for potential independent existence after death, although this is speculative.
Sam HarrisNoAs a naturalist, Harris implicitly aligns with the view that consciousness is tied to the physical organism, meaning its termination results in permanent non-existence, despite the mystery of its nature while alive.
EmergenceConditionalIf consciousness is weakly emergent, duplicating the physical states would duplicate the mental states (likely). If strongly emergent, the non-reducible properties and possible downward causation would need to be perfectly captured and recreated in the new medium, posing significant, perhaps insurmountable, technical and conceptual challenges.
Sam HarrisNoIf consciousness cannot be explained by purely physical processes, then duplication or uploading of the physical substrate will fail to capture or recreate the essential subjective self.
EmergenceUncertainEmergence, especially strong emergence combined with concepts like top-down causation, offers a framework where higher-level properties like consciousness and its associated values could possess genuine causal power, potentially supporting cosmic purpose or meaning, depending on the resulting ontology.
Sam HarrisHumanistic onlyThe mystery does not imply cosmic purpose, but Harris advocates finding personal truths through introspection, aligning with self-discovered (naturalized) spirituality and meaning.
Nature of mind
Ontology
EmergenceHighly variable/Contested. Weak Emergence supports reductive Physicalism. Strong Emergence often implies Non-Reductive Physicalism or a need to expand the conception of nature, potentially requiring new fundamental laws (Naturalistic Dualism or Property Dualism).
Sam HarrisSkeptical/Mysterianism (Justified: The view asserts the philosophical intractability and unbridgeable nature of the mind-body problem, aligning with core tenets of mysterianism, though without adopting a specific alternative ontology.)
Mind and body
EmergenceEmergentist. The mind arises from the body (complex physical systems). The nature of the relationship depends on the type of emergence: Weak suggests reduction in principle; Strong suggests non-reducibility even in principle, often involving downward causation.
Sam HarrisUnbridgeable Gap / Non-reductive Correlation (Justified: Harris asserts that while physical processes correlate with consciousness, no analysis of these processes can logically yield a picture of consciousness, leaving an unbridgeable gap.)
Fundamental or emergent
EmergenceEmergent
Sam HarrisMystery (Justified: Harris declines to fully endorse emergence, stating that while consciousness may be the lawful product of unconscious processing, he does not find that sentence meaningful in explaining sentience.)
Qualia
EmergenceQualia are the novel, qualitatively new properties (e.g., sensory qualities) that arise from the physical system. Strong emergence views consciousness (and thus qualia) as the clearest case of a strongly emergent phenomenon, fundamentally irreducible to underlying physical facts.
Sam HarrisQualia (what it is 'like something' to be) are the phenomenon that physical events are 'mute' about, thus creating the unbridgeable mystery.
How it works
Mechanism
EmergenceThe principle is the claim that novel, qualitatively distinct properties arise at higher levels of complexity, which is often contrasted with the reductive assumptions of mainstream science.
Sam HarrisNone (Justified: The core premise is the failure of all current and foreseeable physical/mechanistic principles to explain subjectivity.)
Where it is
EmergenceTypically localized in complex biological systems (e.g., brains), although strong emergence proponents may argue that AI consciousness is possible if sufficient physical complexity is achieved, regardless of substrate.
Sam HarrisUnknown/Mysterious (Justified: While consciousness correlates with the brain, the theory explicitly rejects confining the explanation of consciousness to physical location or distribution because the physical world yields no evidence of consciousness.)
What it does
EmergenceVaries. Weak emergence aligns with standard physical causation. Strong emergence often posits top-down causation, where emergent higher hierarchical levels exert causal force on lower levels, giving the emergent property causal powers.
Sam HarrisUnknown/Irreducible (Justified: Causal power is not explained by unconscious complexity. The presence of sentience is an ultimate mystery rather than a functional adaptation that can be described reductively.)
Evidence and criticism
Testability
EmergenceSpeculative and philosophically contentious. Weak emergence is scientifically aligned in principle. Strong emergence is difficult to test empirically because it posits phenomena are non-deducible from fundamental science.
Sam HarrisConceptually Untestable (Justified: If the gap is unbridgeable, as Harris claims, the mystery cannot be dispelled by empirical science as currently practiced.)
Tests so far
EmergenceNot stated
Sam HarrisNone (Justified: The framework is a diagnosis of science's failure to address the hard problem and does not propose empirical tests for the mystery itself.)
Criticisms
EmergenceIt is criticized by reductive physicalists (like Eliminative Materialists) as having little explanatory value, being superfluous, or acting as a 'restatement of a miracle' that fails to explain *how* unconscious complexity yields consciousness. Strong emergence specifically challenges the causal closure of the physical world.
Sam HarrisIt functions primarily as a critique against reductionism and scientific optimism regarding consciousness, classifying the issue as an ultimate mystery, which reductionists reject as pessimism (mysterianism).
Sources
Key sources
Emergence
- The Re-emergence of Emergence: the Emergentist Hypothesis from Science to Religion, P. Clayton and P. Davies (2008)
- Strong and weak emergence, D. Chalmers (2008)
- Why reductionism does not work, G.F.R. Ellis (2019)
Sam Harris
- The mystery of consciousness (Part I & II), Sam Harris (2011)
- Explorations in Consciousness: Death Psychedelics and Mystical Experience (2023)