Philosophical zombies
Philosophical Zombies
Also known as: P-zombies
Overview
Philosophical zombies are hypothetical beings that are physically and behaviourally identical to humans, but lack conscious experience. They talk, act, and even claim to feel pain, but there is "no one home"—no subjective awareness or qualia.
Purpose
Used in arguments (notably by David Chalmers) to challenge physicalism—the idea that all aspects of the mind can be explained by physical processes. If zombies are conceivable, then it’s possible that consciousness is something extra beyond the physical. This is one of the main supports for the Hard problem of consciousness.
Key Question
If a being could exist that is identical to you in every physical and functional way but has no inner experience, does this mean consciousness is non-physical?
Example
Imagine your identical twin, indistinguishable in every behaviour and reaction, but who feels nothing, experiences nothing—merely acting like they do.
Criticism
- Many philosophers (especially physicalists) argue that zombies are not truly possible, only logically conceivable, and that this does not entail metaphysical possibility.
- Others argue the idea is incoherent or depends on dualist assumptions.
- My own view (see Consciousness): the argument establishes only a limit on what we can currently imagine, not a limit on what is the case. An argument from what we can imagine is an argument from Personal Incredulity. If consciousness is what certain information processing feels like from the inside, then a being that did all of that processing would not be a zombie; the stipulation that it is one is the conclusion smuggled into the premise.
Source
Chalmers, D. (1996). The Conscious Mind: In Search of a Fundamental Theory.