unimaginably fast. No one had ever heard of the Syrian Electronic Army a year before they were hijacking famous websites, injecting world-class malicious code into opposition computers and demonstrating a digital attack fluency. 21° Of course the charming side of such a shift is evident too: Walk the Vatican with an historian in your ear, master sourdough in a weekend. There’s something not a little miraculous in the way the networked tools to recombine DNA or hack computer code or design viral software are getting both more sophisticated and simpler. If earlier eras put epoch-making implements into human hands - the knife! the train! - our age is now placing new, mind-shaping forces within instant reach. In a networked world, economic or military power doesn’t come just from controlling territory or information alone. It comes, more and more, from this matery of the temporal. Securing territory today does not, alone, solve many problems of safety. Control of information, of topologies and finally of time - this is what matters most. Such temporal security will be elusive; always in need of defense. The arrival of airpower in World War Two, for instance, shifted battles from two to three dimensions. “Only large states are able to resist three-dimensional envelopment,” the historian Nicholas Spykman wrote in 1942.21! Even today, “Air Superiority” is the precondition of nearly any American war. If we can dominate you from above, nearly anything seems possible. But networks add a fourth dimension. “Time Superiority.” Can you move faster than your enemy? Can you bog them down? Or are you a victim of fourth-dimensional envelopment. Control of time - yours, your enemies - this will decide your strength. 6. Back in the fall of 1988, at about the same moment that Danny Hillis and his team were busy peddling their amazing Connection Machine - and trying to smash every world computing speed record they could find - another device appeared in the world of massively parallel s