The stock market has had three major breakouts in the past century, which all gave way to massive bull markets. These breakouts coincided with major peaks in Gold and commodities.
The huge moves in Gold typically began after major peaks in the stock market, although the relationship is not perfect. The major breakouts in Gold were in 1972 and 2005. There have been other breakouts but those along with the current or coming breakout past $2,170 are the most significant.
Based on history this breakout in Gold will lead to a huge move beyond only a few years. The initial upside targets are $3,000 and $4,000.