October 9, 2015 § 1 Comment
A line of characters flooded the screen, alternating as my friend shifted her position in my keyboard. My book report was pulled up in Microsoft Word, the cursor blinking frantically as it tried to keep up with my friend’s sabotage. I just laughed as I pushed her off, then entered my newest discovery into the keyboard, taught to us only a week before in 5th grade computer class:
I was fascinated by the concept of that combination of keys. I could make the most impulsive of edits, write the most ridiculous statement, and delete entire chunks of my paper without worrying about any long term consequences. If I didn’t like the result of my action, I could just push those two keys- Ctrl+Z- and everything would be as it should. A fresh start. Slate cleared. Back to whatever square I chose I wanted to resume work from. I didn’t have to worry about reconstructing any past reality or losing anything to time and effort, because with those two keys in my hand, I could take myself back to any foundation, given I had built the foundation before.
What a tool.
Hooked as I was on the thrill of “Edit-> Undo,” I was a little taken aback when I realized that this handy shortcut didn’t apply to social interactions. It was irrational, I know- but after a week of riding the high of Ctrl+Z, I had somehow assumed that the same rules that applied to my word processor could apply to real life. And when they didn’t, I was not so much alarmed as unsettled.
I always knew Ctrl+Z was a function of the digital realm. But nonetheless, when my confession of a crush to the boy I liked was met with a blank stare, I found my thumb and forefinger twitching, pushing at the keys that weren’t there:
I couldn’t edit this unfortunate moment out of my past, couldn’t insert myself back into an earlier version of my life’s document, the one where he didn’t avoid eye contact every time we passed in the hallway. Just like everything else in the real world, I was bound by time–that immutable, stubborn dimension that refuses to yield to all of human ingenuity, that force that turns into bold, permanent marker the marks that we’d rather be in pencil. There is always the possibility that you can cover up the Sharpie-mask it with the paint of reconciliation, or hide it underneath the tarp of loaded silence.
But no matter what you throw over it, the Sharpie always remains, bleeding through the medium to remind you that yes, this happened. You messed up. You will have always messed up this moment. There’s nothing you can do about it.
Science fiction’s answer to this kick in the brain, this blow of helplessness?
Novels like Timescape take our worst fears–that we might irreparably damage our world, whether that world be the world of individual humans or the literal world of humanity–and puts a bandaid over them, then tucks us into to say goodnight and tells us that everything is going to be okay, because somebody will fix it. Somebody will hit the undo button. The irreparable will become repairable, and we can throw away our tarnished slates and start again.
Time travel grants us control over the fourth dimension and releases us from the chains of time, thereby releasing us from our mistakes. We are fascinated by it because we so deeply want it to be true–to imagine that we can go back and make things right before they ever went wrong.
But at the same time, it’s these wrongs that make us who we are. All of those “character building moments” would be lost if we indulged in easily-accessible time travel-we would never learn anything, because there would be no significant consequences for our actions. Perhaps more importantly, all of the good, unintended consequences of mistakes would be lost. The world would stagnate, because all of the rich innovation that arises out of failure would be lost.
We can’t predict the long term consequences of our actions. Our mistakes can be our biggest triumphs.
However, as Timescape notes, sometimes our triumphs–chemical developments and more efficient methods of manufacturing–can be our biggest mistakes, leading to our downfall–the dismal world Benford describes. And it is this possibility–that we could, as a species, ruin the world–that is the most terrifying to us, because it means that we would tarnish every blank slate born into our mistakes.
Furthermore, it is this possibility that is terrifyingly real.
Gregory Benford might not have the means to time travel in real life, but his fingers are desperately twitching at Ctrl+Z anyway–and as a result of this twitching, typing out a great novel of warning. This book is Benford’s best version of a tachyon, a message to the present urging change and a greater consideration of the future–
because the future will soon become the present, and when it does, we can’t just hit