I can see where u are going with this, but y would a bank or other financial institutions, who arguably are the biggest investors, want to buy commodities now only to have to sell them later, as they don't want to take delivery on these futures contracts. Also, wat u are describing with the buying back of debt is very normal and is a way of decreasing the interest rate by buying back government bonds, money is being pumped into the system to ensure there is no deflation or stagnation of the economy. I also do not think countries will sabotage their own currencies to remain competitive in exports. Canada, for example, has seen an increase in the dollar relative to the US and the bank of Canada and the government will continue to do what is in the best interest of Canada rather than ensuring that the export market is good (i.e. Work primarily off the inflation rate). Although Canada does export alot of stuff, the BOC has not, to the best of my knowledge, taken any action to decrease the value of the Canadian currency. In fact, given higher than expected inflation in march, the bank will likely increase the interest rate which will further increase the value of the cdn dollar vs the US.
Yes there are many holes in the hyper inflation theory.
Personally I blame higher gas prices greed and product elasticity.