Agree, 2013-2015 are the bad years for gold, but the price didn't lose more than 50% in a year. Gold has lower volatility because it has been exist since a long time ago, hence it's hard to pump the price and hard to dump the price too.
that was arguably years of stability.
at least more stable than current economic condition, therefore gold isn't interesting asset to invest.
as from my understanding gold always have rally when there's something big coming up like crisis, war, and so on.
can see the correlation from the historical price chart and finding out what events happened at that time. hopefully it isn't a bad omen, but I'm ready to anticipate whatever gonna play out in the future.