Seven billion who need to be kept happy, and docile, until the end. How do you do that? What's the best way to calm down a scared kid, get them to go… - Neal Stephenson

My name is Melisande Stokes and this is my story. I am writing in July 1851 (Common Era, or—let's face it—Anno Domini)...London, England. But I am not a native of this place or time. In fact, I am quite desperate to get out of here...when I'm done writing this Diachronicle, I am going to take it to the very discreet private offices of the Fugger Bank...not to be opened for more than one hundred and sixty years. The Fuggers, above all people in this world, understand the dangers of Diachronic Shear.

Shut up about Leibniz for a moment, Rudy, because look here: You — Rudy — and I are on a train, as it were, sitting in the dining car, having a nice conversation, and that train is being pulled along at a terrific clip by certain locomotives named The Bertrand Russell and Riemann and Euler and others. And our friend Lawrence is running alongside the train, trying to keep up with us — it’s not that we’re smarter than he is, necessarily, but that he’s a farmer who didn’t get a ticket. And I, Rudy, am simply reaching out through the open window here, trying to pull him onto the fucking train with us so that the three of us can have a nice little chat about mathematics without having to listen to him panting and gasping for breath the whole way.

“I made it into Wikipedia,” sang Erszebet. “I’ll bet none of my enemies ever made it into Wikipedia.”