Blockchain has one genius product: cryptocurrencies. They totally have a use, by technology enthusiasts, people with deep distrust of governments, and last but

Blockchain has one genius product: cryptocurrencies. They totally have a use, by technology enthusiasts, people with deep distrust of governments, and last but not least, criminals. You can’t have a trustless, decentralised currency using other technologies at present. As for other applications, yeah they are all made up so far. And anticipating any other comments, the world could easily do without cryptocurrencies.