Kevin Maney of Newsweek writes:
Blockchain today might be like the internet in 1993: a decade from now, you’ll wonder how society ever functioned without it, even though most of us barely know what it is today.
Some fascinating blockchain sprouts are poking through these days, such as one company that lets anyone act as a bank teller and another that could tell you every person who has ever owned a particular diamond—a handy way to make sure you don’t wear a ring that helped finance the civil war in Sierra Leone. Still other blockchain concepts could challenge Uber and Facebook down the road.