What the chart shows is what I linked about historic gold prices. Gold prices have been rising since 2004, there was a dip and recovery between 2012 to 2015, and the price and price variation have tapered off.
All of which shows Armstrong's forecasts about what would, was, and did happen were absurdly, obviously wrong.
Which is why he no longer refers to them while claiming he's predicted all major world events since the 1980s.