Gold is a natural resources that is valuable as an asset that has been from the time of creation while Bitcoin is less than two decades old. If Bitcoin which is very new can be compared to gold that means that if Bitcoin continues with it's momentum it can surpass gold in the future. Bitcoin has some advantages over gold like in terms of security, gold is a physical asset that has the risk of carrying around because of theft while Bitcoin is a digital asset which carries no risk of theft, except through loss of wallet seed phrase. Plus Bitcoin is scarce because of it's limited supply while if gold is found in excess it's value can decrease.