hi doma,
i'll take some convincing that us gdp and unemployment figures are not tolerably accurate, and more importantly, are not generated using consistent methods by people that are reasonably independent and trustworthy.
so long as these things are true, we can get a decent sense of what is going on. at a minimum in relative terms but more likely, in actual ones.
eg your hyperinflation didn't happen along the timeline you asserted it would. commodities fluctuate as usual but the sum of all the components of the inflation calculation yielded the numbers they always yield. so not only are the facts fairly knowable, your theory was a failure. same with your theory about government debt which depended on compounding that ain't so.
moving goalposts is a game for wavoids. at some point you have to acknowledge the flaws in your methods rather than blaming the evidence and pretending your economics isn't sunk.