no matter what the economics of bitcoin are in the future, no matter anything, it can never happen that the value of 1 bitcoin is that large. so anything else you have to say about that is just inconsequential. keep in mind there's also a possibility that bitcoin doesn't go anywhere that it just stays where it is right now or goes lower.
unlike gold, which for some reason you mention and i don't know why, bitcoin can have competitors. competitors that could come along and take marketshare away from it. so i'd say in 100 years, it's far more likely that gold retains its value than bitcoin does. but that's just my opinion. in 1000 years, gold for sure.
And who, in general, says that Bitcoin will exist in a few years? Where does such a probable scenario come from? Just want it and that's it? Well, that really won't be enough. I am considering the option in which something different and unique will come to replace the blockchain technology, meeting the requirements of that time. Why do I think like that? All because the technological process does not stand still and is developing by leaps and bounds. The computer direction is also improving, which is capable of changing the course of history. Yes, it sounds loud, but we should all look at the modern world and understand this.