how the dow gold ratio played out in the inflation 70s

DIA
GOLD
GLD

charting the ratio of dow to gold. dow above, gold below. Look how purchasing power eroded. The dow in nominal dollars went sideways for a decade, while gold rose over 20 times. the dow went from "costing 26 ounces at one point to "costing" only ounce at the peak of golds spike.