We've always known that computer networks would destroy the world. We just thought they'd get super-intelligent first. Instead, we got social networks, which act as a stupidity X-ray: You suddenly see through the intelligent people your friends pretend to be to the LOLing Farmville players underneath. Some smart people decided to study these networks, and found that they're a bigger threat to society than Skynet. At least the rise of those machines forced us to band together and do things.