There is very close correlation between the printing of...

There is very close correlation between the printing of currency, aka QE, and price inflation.

But thanks to Hedonics, Substitution, Geometric Weighting and Seasonal Adjustments the official inflation figures are completely meaningless and don’t show the real inflation experienced by you, the consumer.

Governments pretend there is no inflation, but in reality you know there is substantial price inflation, as is therefore for the mining sector.
Add in the lower grades, taxes, compliance costs and the picture is one reflected in the cash cost/oz.