It is crypto 1.0. And it can be overtaken. The problem is (and I have been involved - most often unsuccessfully) that building anything in this ecosystem requi

It is crypto 1.0. And it can be overtaken. The problem is (and I have been involved - most often unsuccessfully) that building anything in this ecosystem requires a lot of understanding of digital signatures, distributed system, economics, game theory, security & quality, trustless ecosystems, incentives, possibilities of players with big budgets (PoS - 51% bought by some government)/great developers (bots frontrunning hacking of ERC20 contracts)/criminals (you have strong encryption, but still can be blackmailed/beaten). Bitcoin is one of a few currencies that deliver what it promises. It doesn't promise a lot, but what it promises, it does. Others promise a lot but underdeliver and later abandon it. At this moment, I think Bitcoin delivers 100% of what I expect from it. Monero is potentially better, but underdelivers. Ethereum is potentially better, but underdelivers. Others are either just copycats or completely fail.