When the economic situation breaks down (which manifests itself through the progression of the dollar), the value of gold increases. In the opposite, when it is doing well, the gold back.
Thus, between 2000 and 2012, USA have experienced various events that affected its economy: the attacks of September 11, 2011, the start of the tensions due to the debt sovereign and, of course, the subprime crisis. Faced with these problems, equity investors, for example, rely on shelters values. This is the case for gold.
However, the investment involves risk. For example, the gold did not rise despite the risk of bankruptcy of the United States in 2013. On the other hand, there are a few years a renewed interest in the stock market
Meanwhile, investors who do not like to wait can try to take advantage of the volatility of the BTC.
In terms of safety is better to give preference to gold, the asset has been for many years proves its immutability and value, and Bitcoin young and trust such as gold have not earned, but in terms of not just save money but also to increase them, Bitcoin in this regard leads .