Computing power has grown exponentially. So has the human network. But the brain of Homo sapiens remains pretty much the same organ that evolved in the heads of African hunter-gatherers 200,000 years ago. And that brain has a tendency to swing in its mood, from greed to fear and from love to hate.

The reality may be that by joining us all together and deluging us with data, the Netlords have ushered in a new Age of Volatility, in which our primeval emotions are combined and amplified as never before.