Machines aren't self-critical
Consciousness should be construed in terms of the ability for self-critical thinking—which requires a concept of truth. Because machines lack an adequate concept of truth, as Webb admits, they can't think critically in the way the humans can.
Webb focuses on Gödel sentences as a criterion of consciousness.

But consciousness should be construed in terms of the ability for self-critical thinking.

Self-critical thinking requires a concept of truth.

Because machines lack an adequate concept of truth, as Webb admits, they can't think critically in the way the humans can.

A machine's inability to recognise the truth of Gödel sentences is just a symptom of its inability to think self-critically.

John Lucas (1971).
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Are thinking computers mathematically possible? [7] »Are thinking computers mathematically possible? [7]
No: computers are limited by Gödel's theorems »No: computers are limited by Gödel's theorems
Gödel shows machines can't be fully conscious »Gödel shows machines can't be fully conscious
Lucas' interpretation allows conscious machines »Lucas' interpretation allows conscious machines
Machines aren't self-critical
John Lucas »John Lucas
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