The gold market is huge compared to the bitcoin market. The gold is a good asset that we know it since thousands of years, maybe the price of the gold fluctuates with some tens of dollars on a year. The bitcoin market is at its beginnings, bitcoin is a new currency and not many people knows it. I have read some months ago, in this forum that bitcoin price was bigger than the gold price this year, and that its volatility was less than the gold volatility. This makes bitcoin a very good asset that could replace gold.