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
In terms of its price, the gap between Bitcoin's value and Gold's is now very wide. In addition to that, they also have many differences, because firstly Gold is not volatile like Bitcoin, secondly Gold does not have a blockchain concept.
Although, in other respects they are the same, like as time goes on, its value increases, it can also be used as a currency exchange, but when it comes to the opportunity to make a profit, Gold is very limited, unlike Bitcoin, even if you are a poor person you can own Bitcoin unlike gold you can't.