Welcome to the first Big Idea of 2016! And while the title of Eric James Stone’s novel promises that it will be Unforgettable, Stone asks an opposing question: If you wanted to make a character who was destined to be forgotten, how would you do it, science fictionally speaking?
ERIC JAMES STONE:
When I came up with the idea of a hero who couldn’t be remembered after he was gone, I needed an explanation for what caused that effect.
I’ve had several stories published in Analog Science Fiction & Fact, a market that offers mainly hard science fiction, so I can come up with scientifically rigorous explanations for various story elements. But Unforgettable was not intended to be hard science fiction — it was really more of a superhero novel, albeit with a rather weird superpower.
I toyed with a biological explanation involving pheromones, but eventually decided to use quantum physics. I’ve always been fascinated by some of the weirder aspects of quantum mechanics, like superposition and wave function collapse. My wife is a high school physics teacher. Before we met for our first date, I told her she would recognize me because I would be wearing a tee-shirt with a physics joke on it. She said, “OK, but if it isn’t funny, I’m leaving.” The tee-shirt showed a wanted poster with a picture of a cat, and it read “Wanted: Dead & Alive — Schrödinger’s Cat.” (Fortunately, she found that funny enough that she didn’t leave.)
I figure most readers of this blog are familiar with the Schrödinger’s Cat thought experiment (or are capable of looking it up on Wikipedia), so I won’t detail it here. Suffice to say that before the experimenter opens the box, the cat exists in a superposition of aliveness and deadness. After the experimenter opens the box, the probability wave function collapses, and the experimenter sees either a dead cat or a live (and probably very annoyed) cat.
However — and this is where we go beyond the original thought experiment — outside the lab is the experimenter’s colleague. From the colleague’s point of view, the cat’s aliveness is still in superposition, but the experimenter’s mind could also be said to exist in a superposition of two possibilities: having seen a dead cat and having seen a live cat.
All of that is still within the realm of current theoretical physics. But to provide a theoretical basis for my hero’s superpower, I needed to take it one step further. I wondered, what if there were some sort of glitch, and the wave function for the experimenter’s mind collapsed to the version where the cat is dead, while the wave function for the cat itself collapsed to the version where the cat is alive?
Nat Morgan, the hero of my novel Unforgettable, is the personification of such a glitch: he exists in a superposition of being there and not being there, and once he’s gone the wave functions of the minds of everyone he’s met always collapse to the version in which he wasn’t there.
Once I had my theoretical explanation in place, I proceeded to work out the implications of Nat’s superpower. Figuring out the rules for what happened when he interacted with people helped me to develop scenes that showcased the rules, so the reader would come to understand them.