I don't get why people are even wasting the time talking about this.
Social media can be a global productivity time suck.
Yes.
At least rationally concerned.
Forget the SI references just yet... here's a great, albeit long, read. (It's two parts, and this is part 2.)
http://waitbutwhy.com/2015/01/artificial-intelligence-revolution-2.html
Part of me believes that there are natural boundaries and limitations that we have not foreseen yet. The way that people in the 1890s were panicking about what cities were going to do with all the exponentially growing mounds of horse poop with the explosion of horse ownership in the city streets. But you never can tell.