]How a TV and car works can be demonstrated. [/B]
All he has to do is demonstrate the physical processes that generate the human "will".
If the human "will" is indeed physical then that shouldn't be too difficult. So far all I'm hearing are blind assumptions about the brain.
Oh? You understand TV, electricity?
Nobody understands everything about how a TV works. We just know how to make it work largely based simply on empitical knowledge. Like driving a car without a clue to how a car really works.
Nobody knows everything about how a brain works either. If you think neuro research is so easy, you go do some. (your blind assumption is that it must be easy)
Into that lack of present knowledge you insert
your "blind assumption" that there is (you dont say might be, or you think, you say there IS, a fact not in evidence) something nonphysical.
Statements of fact not in evidence get into the thin ice of false witnessing, dont you think?
You are trying to work the "cant prove it isnt so" angle still.
There could be something nonphysical but in the total complete and utter lack of the slightest scrap of evidence, it remains
only a possibility that could possibly be demonstrated as fact.
But you say its a fact..dont you?
What is it that makes you comfortable stating as true facts that are not in evidence? Seriously, is there anything in your sense of ethics, morality, t-ruthfulness or your religion that argues against doing that?