A few years ago – in the early days of Blockchain – a lot of people were taken with the idea of a multifunctional chain on which all transactions could be handled. After Ethereum was launched in 2014, its advocates were talking themselves hoarse about the transformative opportunities the platform introduced. Decentralized applications, they predicted, along with all sorts of value transfers would be executed exclusively on Ethereum from that point on, and no other networks would ever be needed.