From the start, we saw that with the passage of each year, new technology is introduced and the old one is demolished or replaced. BTC is considered the Top digital coins/currency but I think it will be soon replaced by some new technology.
New technologies do come into existence and old one do wear away, but in the crypto world, only old technologies/projects that does not keep up with maintenance of their projects gets affected and get loss, and new technology takes over it. As for bitcoin, it has laid its standards and generally known in the crypto space by those in and out of the system. It has gained its popularity and leads in the price of the crypto market, where every altcoin is affected by it's price. If we look at the other side, gold, it has been over the years, were generations upon generations gas come and gone, its value is still upheld and its respect is still intact. Bitcoin holds the crypto market, and will remain over the years. New and upcoming generations will see, learn and use this technology.