Not really churns. Just pointing out some basic truths, in response to a particular poster who has made it his raison d'être to attempt to contradict everything I say, rather than sitting down and looking at the cold hard facts.
The "economists" want to give Canada no credit whatsoever for our massive investment in the oil and gas sector. They want to give the Canadian dollar no credit for the fact that commodities have risen out of their 20-25-year secular bear market (circa 1980-~2000) and are now in a secular bull market. They want you to believe that falling Canadian housing implies that the dollar is going to weaken (again, fairly ridiculous). They have too much faith in central bankers and central governments to unilaterally dictate the value of currency (if central bankers can devalue so easily, why has devaluation been such a spectacular failure in the USA?).
Just too many things that one particular poster can't explain about why he believes that the CAD$ belongs under parity for the significant term. Too many contradictions that he tries to explain away with short-term cyclical behaviour. A significant denial of the role that speculators play in short-term currency movements despite being shown official government reports implying huge speculative interest against the CAD$. And of course, when he can't come up with a coherent argument (Big Macs, , seriously????), all that is left is to resort to the ad hominem.