I see what you say…, but perhaps I am still missing something:
Given that you talk about “the grey matter” I tend to think that with the phrase “The same matter” you mean just “the same kind of matter” (so, the “banana-magnet” example does not apply easily). Still, If that was the case, then I would tell you that two different parts of the brain could be causally associated to the same parts of the body in such a way that in certain circumstances there could be a conflict of energies proceeding from those different parts of the brain -so to say-, each one pushing the body to act in a different manner. It seems that this kind of things really happen. The brain is not a simple entity.
Certainly the brain can work on the same body part differently, like the heart, a valve might be getting signals to work normally where a muscle section is fighting to work normally (perhaps this is more of a lack of signal).
I don’t know if I could say the brain can tell, say a valve, to work normally and not, at the same time. (Or perhaps it can send the message and not complete the task, like that example above, or the message is stuck in the outbox)
The brain is amazing. The brain is working my heart, lungs, and fingers right now, while also calculating what I’m seeing and helping me develop thought, based on my current experience (reading your post), all at the same time.
At the same time I just got a hunger message from my brain (it’s close to lunch, and I am bad about not eating breakfast), I had, and have right now, the ability to ignore that message.
It’s really an honest question, I want to hear support that carrying out this act to ignore is something that can be answered in light of a ‘material only’ reality. If I was a ‘material is only’ person, I would need this answer to be such.
The common (and always) answer is ‘we haven’t figured that out yet’. There has to be a better answer and I’m most willing to listen.
It seems the puzzle is going left and right at the same time. It seems there has to be 2 things moving.
Take care,
Mike