Consciousness vs Computation
Computation is a well-defined process; consciousness is the hard problem. Whether one suffices for the other is the most consequential open question in cognitive science.
Definitions
Consciousness
Subjective experience - the felt sense that 'there is something it is like' to be a system, encompassing qualia, self-awareness, and phenomenal binding.
Computation
Mechanistic transformation of inputs to outputs according to formal rules, substrate-independent and fully describable by a Turing machine.
Side-by-side analysis
| Dimension | Consciousness | Computation |
|---|---|---|
| Definition | Phenomenal experience | Functional input/output mapping |
| Measurement | First-person, indirect proxies | Third-person, fully observable |
| Substrate dependence | Debated | Substrate-independent (by definition) |
| Theories | GWT, IIT, HOT, Predictive Processing | Computational theory of mind |
Strengths
Consciousness
- The only thing we know directly
- Anchors meaning, ethics, and value
Computation
- Mathematically precise and testable
- Reproducible across substrates
Weaknesses
Consciousness
- No agreed-upon measurement
- Impossible to verify in other systems
Computation
- Does not on its own explain experience
Scientific evidence
Integrated Information Theory predicts consciousness from causal structure
- Tononi, BMC Neuroscience (2004)
Global Workspace Theory frames consciousness as broadcast integration
- Dehaene & Naccache (2001)
No empirical test currently distinguishes a conscious from an unconscious LLM
- Butlin et al. (2023), Consciousness in AI
Future outlook
The next decade will likely produce sharper functional markers of machine consciousness without resolving the underlying metaphysics - forcing policy decisions under deep uncertainty.
Related entities
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Human Intelligence vs Artificial General Intelligence
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Neurons vs Parameters
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Human Memory vs AI Memory
Human memory is reconstructive and emotional; AI memory is either parametric (baked into weights) or retrieval-based (looked up at inference). The trade-offs are opposite.
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