Bitcoin as money is by far superior than gold, since with gold you can transact only hand to hand, while Bitcoin allows you to transact with the whole world and do it almost instantly
Thats the monetary velocity component to economic worth, especially relevant to bitcoin since it has no base worth or real wider use then transmitting value. Gold does have a wider use and though its slower, its more stable in value. Bitcoin isnt superior, its just got different strengths to it and I would want some of both in any successful trading economy.
Gold has a global element to it as it has been used for so long and is valued, used and traded by almost every country of the world. Its universally held in reserve as an asset by all the major central banks, with any upset to FIAT you can bet gold will go up as it is used more. Gold is absolutely unique and bitcoin is not, it can be surpassed.
Bitcoin of course will also go up as of when its used more and is considered more reliable comparatively to FIAT. If you are confident that process is ongoing then you represent the monetary avant garde and will either profit or suffer the error of your ways but theres no doubt a long way to go yet. Neither solid metal or digital asset has come anywhere close to being tested with the weight dollar carries every day now
Bitcoin can replace fiat but its much less likely to replace something unique