[smcphile]

> Sentience has a subjective quality to it, but it’s not clear it has any power.

As I said, I don’t know. I agree it’s not clear.

The first book I read on the subject, many years ago, was “Body and Mind”, by Keith Campbell. The book outlines various positions taken on the mind problem. I still have the book. Your position appears to be a version of epiphenominalism.

I found the book helpful as a short overview of the subject. For example, in chapter two the book describes the mind-body problem as four propositions that form an inconsistent tetrad. Any three are mutually consistent and can all be true. But any three together imply that the fourth is false.

The four propositions are: (1) The human body is a material thing. (2) The human mind is a spiritual thing. (3) Mind and body interact. (4) Spirit and matter do not interact.

The author describes a “spiritual object” as “one that does not have all the qualities of matter; it lacks at least some of: mass, volume, velocity, solidity”. (Some qualities of matter are allowed, just not all.)