Email over blockchain: The best bad idea I’ve heard this year

It has become an established joke that blockchain is a technology in search of a problem to solve. Although this quip is deliberately provocative, designed to needle a thin-skinned community of enthusiasts, there is a measure of truth to it too.

Since the emergence of cryptocurrency, the first blockchain use case, entrepreneurs have come up with tens of alternative applications for the technology, which can be thought of as a time-stamped database of transactions distributed among the members of a network.