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.
Yes, you have a point. I'll just elaborate about its price history for gold and bitcoin. Lets talk about bitcoin first. Bitcoins worth during 2009 was $0; it has no value during its first year of existence. During 2010, its worth was $1, and the highest price for that year was just $0.39. And during this year 2017, its price reaches to $18,747.12 as of the moment. It keeps on increasing (although there are times it decreases but it just recover after a week/s).
As for gold, Ill going talk about its price over the last 10 years. During 2007,its price worth $800 per ounce only. And as of now, the current price of gold as of December 15, 2017 is $1,259.70 per ounce. See the difference? It also keeps on increasing.
Now, why is it its better to hold gold and bitcoin? It is because you can really earn huge profit in that kind of investment. Gold can be your back up investment in case if something happens to bitcoins price (like it will drop half of its price).