For a mathematician, the obvious is just as much of a challenge as the obscure. Each has to have a number put upon it. Because once there is a number, we can all feel the issue has been solved and defined.
I therefore had the iPad temporarily expunged from my inner hard drive when I discovered that a group of mathematicians, from no less a university than La Sapienza in Rome, have created an equation that defines the speed and power with which gossip spreads through the Web's crack-filled veins.
You might think that they ought merely to have … Read more