Isn't this assumption actually arguing AGAINST human exceptionalism? I feel like there are only two options to what consciousness can be explained by (the idea coming from another HN comment sometime/somewhere that I have forgotten, so I can't claim originality)
1. Consciousness ultimately arises out of a physical process, albeit incredibly complicated, but could be computed given a sufficiently powerful computer, or
2. The concept of a human soul is true, or
3. There is no third way, pick one of the above.
For human consciousness to be "exceptional"... we would have to have some undefiniable "other" quality that could never be explained by science and is therefore necessarily supernatural?