What is important is not the price of goods and services expressed in dollars, but expressed in hard commodities. For example, if you look at the value of the stock market in dollars it seems to be, after a fashion, maintaining its value.
However, Google the term "Dow in gold dollars" (aka "DIG$"), and your eyes will be opened! .. In fact, here it is - this shows how the value of the DOW has changed in terms of something of constant value:
