For me the real reason to hold gold and bitcoin is because the value of it is not stable, so it's have a big chance that the value of it will totally rise very high or will pump very high in the future, and i am confident that holding gold and bitcoin is very good strategy to make or earn many profit maybe x2 or x3.
I think bitcoin will give you that kind of profit because the price of gold is almost stable unlike with bitcoin the price is continuously changing to a much higher price. By just holding bitcoin for a couple of months you can have x2 or higher profit because as we can see with the history of the price of bitcoin, how much it went up for just a few months.