There are two reasons. First, Bitcoin is a non-credit currency ten times stronger than gold. So unless Bitcoin is replaced. Otherwise he must surpass gold. Second, Bitcoin is close to being the ideal non-credit currency, and it is basically impossible to have another non-credit currency beyond Bitcoin. Combine these two points and Bitcoin is bound to surpass gold
These are the things to say I know Bitcoin has great community support and it has the potential to be the market King and it has many unique characteristics. In front of the Gold Bitcoin is just a newborn baby don't get offended but it's the reality Gold is being used since ancient times, Sometimes as currency sometimes as a Store of value. To reach the Lagace of Gold Bitcoin needs time at least a decade in view because currently the adoption rate is too low + there is a great war ongoing against the economic system.