You assume I didn't think about the validity of his point? You presume too much. I thought about it, and saw the flaw in his reasoning. He can be creative, but that doesn't necessary means his "creative thinking" is rationally valid. Its good you can find correlations between different sets of data, but he has mistaken the correlation for causation.
I agree, but please note that "capable of being wrong" means that you are able to accept that you're wrong and keep going until you get it right. It doesn't mean its ok for you to be wrong and to stick with the wrong idea/concept.