via SeekingAlpha - Gold: Too Far To Turn Back?
"4. As gold provides no internal return, its price is inversely correlated with real interest rates (more precisely, real yields). As can be seen on the chart below, the current level of 10-year real yields would justify gold prices at 2000 USD."

Note that this particular demonstration of negative real interest rates does not use shadowstats, so there's really no exaggeration at all.
source: http://seekingalpha.com/article/907801-gold-too-far-to-turn-back
-F6