It's impossible to come up with a plausible idea as to what is going to happen and how it will play out in two decades from now. But this rough idea that all monetary value gravitates into bitcoin in 50 - 200 years does make some abstract sense as bitcoin meets a dozen criteria to be good money which gold (or any other asset) doesn't meet.
When I suggest 50 to 200 years for something to play out, I am providing a lot of latitude in my own thinking of gradually and then suddenly because sometimes changes happen slowly, and then all at once, and if we try to prepare for the direction that we think the puck is going rather than where the puck is, then we are likely going to be in a better position, even though we likely can mostly do ballpark type preparations for a variety of scenarios rather than getting too bogged down in specifics, so there is a bit of a BIG SO FUCKING WHAT? in regards to where bitcoin might be 50 to 200 years from now, since we have to be both enjoying our here and now and also preparing on shorter timelines, such as we do want to make sure that we are able to feed ourselves and any family (dependents) that we might have, and many times we are going to have a lot of intermediate goals in regards to where we want to be at time 1 month from now, 6 months from now, 1 year from now , 4 years from now, 10 years from now, etc etc etc., and so the further we go out the less that we might get into details, including that I better have enough money to pay my rent, utilities, food, transportation for this month and those are pretty specific numbers, and they become a bit more general the further than we go out in time, even though surely if I have built either life skills (working skills) and social capital, and various back up systems, I might not have to worry as much about some of the shorter term matters working themselves out, yet if I go through some relationship problems, or employment problems or even if I get hit by a bus, then I might have to consider if my various backup plans are sufficient enough to help to protect me (or to keep me in the game).
Personally, I don't see much if any role for gold in my own personal preparations, and sure there might be some people who are in places in which people are used to having gold and dealing with gold, so maybe they are going to be o..k to have some gold in their lives, but I personally consider gold to be completely unnecessary, absent maybe some Armageddon situation..and even then, in the place where I am at, I have difficulties understanding what good the gold might do me. I could buy a few ounces or kilos to store some where, just in case, but I am just considering it to be something that might not be very helpful...maybe in considering a situation in which bitcoin is also no longer valuable... internet is down every where? That would be a pretty bad situation, and I might not be young enough to last through something like that if it comes to fighting over resources, I don't have enough guns and bullets either, which might be helpful in terms of self protection during such times... I think I am getting too far astray with trying to consider
some value in terms of having gold as you suggest might be of some value in some scenarios that you have not quite specified what they might be.
I think you got me wrong somewhere. For the time being gold has value because people believe gold has value, so one property might be that its historic record concerning value preservation seems to be holding true into the future.
Now when it comes to use cases, I have never been looking into it scientifically like how important is gold in electronics or medicine. I have only superficially scratched a few sources, but I couldn't verify myself whether gold is indispensable because of its conductivity or for other characteristics or not. I just don't know. As far as I know it is used in all kinds of devices, but does it
have to be used?
If you google gold use cases, first thing that comes up is of course jewelry and since I don't give much about jewelry, I would never buy gold for that reason. In fact, I would never buy gold for any reason unless I think it would be a smart move because I anticipate the herd thinks for some reason it is a smart move. It would be more about playing the market than playing the asset.
Since I can't tell whether I am dependent on gold and whether my laptop or desktop would not be working without gold, I can't categorically say that gold sucks. But if someone now convinces me that gold is NOT an indispensable ingredient for electronics or other essential areas of life, then I would indeed say I couldn't care less about gold.
And as you said, if we get to a point where the Internet would be down globally, I think gold wouldn't get you very far either!
Because that probably means nuclear doomsday or something.
There is one uncertainty in my mind though, which I am simply technically not literate enough (and maybe nobody is) to assess, and that is whether bitcoin could one day undergo a hidden quantum-computing-like attack that brings it down. But from what I learned, if bitcoin can get attacked one day, the most pervasive encryption technologies used in critical infrastructure (airports, stations, banking, medical records...) could get attacked, which in turn again implies doomsday. So if technical developments are inbound that could threaten bitcoin's encryption technology, it could migrate to more sophisticated, adapted algorithms. That is what I work with and as mentioned before, bitcoin is not at risk in isolation because too many things run on encryption and then the whole world's infrastructure would have a problem, including bitcoin. Would I like to have a gold bar in my basement if that happens? Well, let me say, perhaps yes. I wouldn't complain if one is lying around then, but I would probably not actively hoard gold to prepare for these weird scenarios.