Crypto would be extremely useful if it were wholeheartedly adopted by the government of a medium-sized country. The fundamentals of cryptocurrency are as good as the gold standard, maybe slightly better, and could be better than fiat; the problem is that no one pays their taxes in it so no one uses it as a real currency. Likewise, NFT’s could be used to implement property titles if a government ever agreed to enforce them. Then things like smart contracts and whatnot start to look a lot more interesting. The problem is that the entire crypto economy is a fake play-money ecosystem with no power over physical reality.