Earlier today we presented an extended case by Caixin's Andy Xie, who is now confident that a massive 40% devaluation of the Yen is imminent and inevitable (with dire consequences for regional trading partners), as the opportunity cost, now that the Japanese economy is no longer competitive in the New Normal world (read trade surplus) of delaying what every other central banks has been doing so well (just observe the nominal surge in risk assets at 8 am this morning when Bernanke made it clear more real dilution is coming, as predicted here just yesterday), is the 3 decade long overdue pop in the JGB bond market. Yet as Xie notes, either of these two bubbles popping - the JPY or the JGB - is fraught with danger as both will confirm that three decades of central planning have failed. What is worse, Japan would then become a case study for failed central planning (yes, redundant), everywhere, but nowhere more than in the US. Which in turn, would not be a surprise to most, or at least to those who don't chase dead end momentum trends and heatmapped assets in simplistic hopes of finding a greater fool 1 millisecond into the future. It also would not be a surprise to anyone who sees the following chart from John Lohman which shows the gradual failure of central planning since the second global depression started in 2007 (and offset to date by $7 trillion in central bank private-to-public risk offset), during which time the BOJ has been forced to load up its balance sheet with substantially more assets than its GDP has grown by. Alas, this trend will accelerate which is why with time the exponential chart of central bank balance sheet expansion will only get more "exponential" until it finally pops, bringing with it an end to the truly last bubble. We can only hope we are somewhere far away when that happens.