This is a currency/store-of-value, reductio ad absurdum joke by Barry Ritholtz, but you have to know the background. People who think that gold is the only REAL money like to run charts pricing various assets (often stocks) expressed not in dollars but in gold. (More precisely, the dollar/gold conversion price.) Of course this looks goofy/Alice-in-Wonderlandy next to the nominal charts, which is the intended effect.
Ritholtz takes a step further into the 14th dimension by saying, bah, SILVER is the only real money. Next to silver, gold (which keeps setting record highs) is trash. And he has the chart to prove it. The point, of course, is that pricing everything in gold is kind of loony.
Barry concludes: