For me, it is a currency/technology that did not promise the world, but is gradually dominating it. Countries with great economic power are already making their reserves, much progress has been made so far and many others will be achieved. Unlike many currencies that promised a lot and delivered nothing.
You are right, so many coins did made promises a lot but achieved none of it so far. Many coins are a big disappointemt, where people had hopes in such coins but no progress was done.
Yes. In the end, everyone will realize how sophisticated the system in bitcoin is, and that also makes this asset the most in demand, even countries are starting to be interested in making bitcoin a reserve asset. If we look at Bitcoin, it has a very cool advantage compared to other cryptocurrencies including fiat currencies. This is largely due to the technology that bitcoin has and of course its fixed supply.
The main advantage of Bitcoin is its ability to limit new boundaries. Because the amount of Bitcoin cannot be manipulated, nor does it exist, It is not controlled by an entity, no matter how strong the entity is in terms of damaging the bitcoin network. This is what makes bitcoin superior to other cryptocurrencies whose supply can change even in fiat form like that. Bitcoin still survives today, one form of bitcoin is indeed a promising asset for the future, many bitcoins are rumored to be dead or so on, but bitcoin remains strong today, even for the future.