Bitcoin, on the other hand, has a fixed supply. However, the circulating supply is decreasing due to forgotten seeds or passwords, mistaken transactions, dead owners, and so on. And so if the value assigned to gold will eventually be assigned to Bitcoin, and the rest of humanity will treat Bitcoin the way they treat gold, I would think that Bitcoin is going to become more precious than gold in the future.
There are advantages on both investments. If you want tangible asset, go for gold but if you want to risk some of your investments, buy some bitcoin. For me, if I have the resources, I'll get both. Remember the saying - never put all your eggs in one basket. So I guess, this is one instance where you can apply it - where to put your investments. I can't tell which one will be worth more in the future, but as much as possible, I want to have gold in my portfolio. This has proven by centuries already. You can never go wrong with gold.