I just watched a video by Andreas M. Antonopoulos on youtube, called “The Killer App: Engineering the Properties of Money.” In technology, entrepreneurs are always searching for the “killer app”, the program/application that will popularize whatever technology that the company is developing. He’s also written a couple books, Mastering Bitcoin and The Internet of Money.
I just got my own ethereum (approaching bitcoin in popularity, the up and coming cryptocurrency) miner working as a proof of concept on an old PC: