One day, bitcoin could grow 1000x or it could crash to zero, not the case with gold. Long-term, gold would have a more stable value, but bitcoin would have a far better upside potential. Greater risk, greater reward. I choose Bitcoin.
Still, gold may offer the owner of the investment without the risk of losing their savings at any time and for various reasons. Therefore bitcoin can be kept only for earnings, although a possible increase in the price of bitcoin too attractive.