I never posted my gold bear market chart with the $780 target, so here it is. I cannot update this because I no longer use this particular charting service.
I regarded the $730 high in 2006, the $1030 high in 2008 and especially the $680 low in late 2008 as key points to try to draw median lines of some kind. I noticed a pattern where the impulsive move up to $1920 is a larger version of the impulsive move to $1030 from 2008. On the score there is a possible target of $780 for gold, depending on the time-frame since the target line is sloping.
My estimate for this low was perhaps in 2015 and here we are. This chart was drawn in early 2014: