Andrew R Stewart 

Having followed this thread off and on it seems to me that Yan is the only one who is disrespecting the other with his insulting references to Stuart's abilities. This is, of course, independent to the discussion or the logic used. It's too bad that some feel the need to describe their debating opponent with such characterizations, just like our current political state here in the USA. At some point one gets tired of reading this type of interaction. Andy (who in his long ago debate class learned to never attack the other's character, just their logic and facts)