In one of the most erudite, intelligent, and insightful conversations on the Bond bull/bear debate, David Rosenberg and Jim Grant go all out at each other, trading blows in this "Great Debate" which is a must see by all. As we pointed out yesterday, Grant is very bearish on bonds, and in a self-made prospectus has decided to downgrade the US, since the rating agencies, which have long been thoroughly incompetent, corrupt and afraid to disturb the status quo, will not do so until it is too late. Jim's point is simple: you can't resolve massive debt with more debt, and says Treasuries, which he calls "certificates of confiscation" are a surefire way to lose one's money. He points to the record supply of US Treasuries, makes fun of the SEC (who doesn't), and in a stunning move, cautions the Fed Chairman, whose ongoing dollar debasement, was once considered treason by the US. His conclusion: "watch your back, Ben Bernanke. Cycles turn" could not have come at a more opportune time. As a contrarian, Rosenberg discusses the McKinsey report looking at sovereign debt, and the Reinhart and Rogoff studies on debt default and highlights that there is a major disconnect between theoretical applications of sovereign default models and practice: in essence the US is still deleveraging as private debt is decreasing and public debt is surging but to a slower degree. In essence, David claims, the second largest monthly debt issuance in March of $333 billion is merely a side effect of ongoing deleveraging, which is a leading and/or coincident indicator of deflation: an environment in which the long bond thrives (Japan is a good reference point).