What is consciousness?

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The raw 'what-it's-like' feel of an experience — the redness of red, the sting of pain.

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There is something it is like to be you, from the inside — an inside feel a rock lacks.

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You could know every brain fact about a bat and still not know what it's LIKE to be one — physics leaves out the feel.

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Mary knows all the physics of colour but still learns something on first seeing red — so the feel is a fact physics left out.

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Complete physical knowledge still leaves out the inside feel — Nagel and Jackson's shared move.

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She gains a new ability (to recognise red), not a new fact — so there may be no real gap.

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Outside facts (brain, wavelengths) never seem to add up to the first-person feel of the experience.

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Third-person = the outside facts anyone can measure. First-person = the inside feel only the experiencer has.

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Following rules to output Chinese without understanding it — processing symbols isn't understanding.

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Indian view: awareness is the basic 'witness' behind all experience, not something built from matter.

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Acting smart (behaviour) is not the same as feeling (experience) — the heart of the debate.