Go, the old man said. You know the score. This is how it is: everything’s random, nothing’s fixed unless we want it to be, and even then the system isn’t as stable as we think it is. So go. Go. Go, he said, and, of course, hearing something like that, Cameron went. What else could he do, once he had his freedom, but abandon his native universe and try a different one? Notice that I didn’t say a better one, just a different one. Or two or three or five different ones. It was a gamble, certainly. He might lose everything that mattered to him, and gain nothing worth having. But what of it? Every day is full of gambles like that: you stake your life whenever you open a door. You never know what’s heading your way, not ever, and still you choose to play the game. How can a man be expected to become all he’s capable of becoming if he spends his whole life pacing up and down the same courtyard? Go. Make your voyages. Time forks, again and again and again. New universes split off at each instant of decision. Left turn, right turn, honk your horn, jump the traffic light, hit your gas, hit your brake, every action spawns whole galaxies of possibility. We move through a soup of infinities. If repressing a sneeze generates an alternative continuum, what, then, are the consequences of the truly major acts, the assassinations and inseminations, the conversions, the renunciations? Go. And as you travel, mull these thoughts constantly. Part of the game is discerning the precipitating factors that shaped the worlds you visit. What’s the story here? Dirt roads, donkey-carts, hand-sewn clothes. No Industrial Revolution, is that it? The steam-engine man—what was his name, Savery, Newcomen Watt?—smothered in his cradle? No mines, no factories, no assembly lines, no dark satanic mills. That must be it. The air is so pure here: you can tell by that, it’s a simpler era. Very good, Cameron. You see the patterns swiftly. But now try somewhere else. Your own self has rejected you here; besides, this place has no Elizabeth. Close your eyes. Summon the lightning.