Sure. Google "inflation adjusted price of gold since 1980". Or view https://b-i.forbesimg.com/rickferri/files/2013/04/GoldFig22....

The giant saddle does seem to support the idea that gold is hard to value.

Then the next search phrase to look up is "inflation adjusted price of gold since 2011". It's not a pretty chart. I would not use the words "steady upward trend" to describe it. "Steady downward trend", maybe.