[. . .] No, it does imply those mental capacities do not exist, because chemical reactions have never been observed to produce logical reasoning.
Apparently your argument is:
P1 If naturalism were true, chemical reactions would be the cause of mental capacities including logical reasoning.
P2 Chemical reactions have never been observed to produce logical reasoning.
C Therefore, if naturalism were true, mental capacities would not exist.
You must know that this isn't in any way a valid argument. Can you, in fact, produce a valid formal argument which reaches the conclusion "if naturalism were true, mental capacities would not exist"?
Moreover, if you are making the claim "if naturalism is true, then our judgments are unreliable," then you are assuming, for the sake of argument, that naturalism
is true. But if naturalism is true, then chemical reactions
are the cause of mental capacities including logical reasoning. So you simply cannot assume that those reactions can
not be the cause of mental capacities, because that would imply that naturalism was false, and you would be abandoning your own argument.
You do this constantly. I challenge the claim that "if naturalism is true, then our judgments are unreliable," and you abandon that claim in order to defend a different claim: that naturalism is false. At this point, I think it would be fair to assume you just are not interested in defending the claim that "if naturalism is true, then our judgments are unreliable," and you are only interested in defending the claim that naturalism could not be true. And if you are going to do that, you have to do better than "we haven't seen chemical reactions produce logical arguments," because "we have not seen it" doesn't mean it is not possible.
But you are also claiming that if naturalism is true you still ought to come to certain conclusions. Something based on physical states just are, they cant be oughts.
Apparently your argument is:
P1 If naturalism were true, all our thoughts about what we ought to do would be the products of physical states.
P2 Things that are the products of physical states can't be "oughts."
C Therefore, if naturalism were true, our thoughts about what we ought to do couldn't exist.
You must see that this conclusion does not follow from the premises. Do you have a better argument, in which the conclusion
does necessarily follow from the premises? Please try to present an actual formal argument.
I just did [present an argument] above.
What you presented above wasn't a valid argument. Maybe it contained the hint of one, but that's something you'd have to clarify.
How can things that just are, be oughts?
Mental states -- whether they are products of chemistry or products of a spirit -- are not, themselves, "oughts"; mental states can only be
about oughts (about whether some things ought to be done or ought not be done). Again you're making a category error.
Glad you concede that we have no evidence that such a thing can occur.
I conceded no such thing. I said "we don't know
how matter in the brain gives rise to a mind which is capable of rational insight." Do you not understand that "we don't know how this happens" is not the same as "we have no evidence that this happens"?
Recap:
ME
: You had said that logic didn't "cause" things but did "produce" them. I said I didn't understand the distinction, and I still don't. What is the difference between saying "logic produces conclusions" and saying "logic causes conclusions"?
YOU
: Logic produces rational insight into our thoughts.
ME
: You are still not addressing that question! What is the difference between saying "logic causes rational insight," which you reject, and "logic produces rational insight," which you accept? How do you produce something without being a cause of that thing?
YOU: [Just now]
Causality implies the false impression that just a series of causes and effect can produce rational insight, but we know from science that is extremely unlikely if not impossible. Logic produces conclusions, it doesnt cause them.
And I still don't know what "logic produces conclusions, it doesn't cause them" is supposed to mean. Let's drop it.