you can prove that you are not using an outward representation of conscious thought by consciously thinking.
I can prove it to myself, and
you can prove it to yourself - but neither one of us can prove it to the
other.
I
know I can think. I know I'm using conscious thought. How do I know that
you are? How do
you know that I am?
Do you understand the problem, here? Just
saying "I'm using conscious thought" doesn't prove it, because I could program a computer to say that. You could be just a computer, as far as I know. As far as
you know,
I am.
If a machine does have conscious thought, it is unable to manifest it into action, and thus it is meaningles as it has no pupose.
The fact that no computers appear to have conscious thought
yet is not proof that they never will.