GE Morton wrote: ↑September 12th, 2020, 8:05 pm
If we understand "identity" in Leibniz's sense --- two things are identical IFF they differ in no distinguishable properties, then phenomenal experience and brain processes are obviously not identical. The Place/Smart identity thesis confuses the "is" of composition (lightning is a stream of electrons) with the "is" of identity (the Morning Star is the Evening Star).
I explained this to you already. Brain/mind identity is just the same as morning star/evening star identity. The apparent differences are due to spatiotemporal reference point differences.
With the morning star and evening star, it's due to observing it in the morning versus in the evening, and in different cardinal directions in the sky. So there are temporal, spatial and contextual differences a la different spatiotemporal reference points.
With brain/mind, it's due to observing it from a spatiotemporal reference point of "otherness"--that is, observing it from a third-person point of view, versus observing it from the spatiotemporal reference point of
being it--that is, observing it from a first-person point of view.
The differences are differences of perspective or spatiotemporal reference point.
Brains are never going to seem just like minds from a third-person perspective, and minds are never going to seem just like brains from a first-person perspective, because the
perspectives are never going to seem identical.
That's just like the morning star is never going to seem like the evening star from a "seeing it in the morning, looking to the east" perspective, and the evening star is never going to seem like the morning star from a "seeing it in the evening, looking to the west" perspective, because those
perspectives are never going to seem identical.
With the morning star/evening star, we can realize that we're seeing Venus, and from a third person perspective (which of course is all we can have of Venus--we can't literally BE Venus) Venus seems like Venus, but brains/minds are unique in that they're the only thing possible for which the different perspectives in question are observing it third-person versus
being it, and those two perspectives aren't reconcilable in the same way because of this. Hence why brain/mind identity is a unique case for this issue.