The two novels took different approaches to time dilation: that effect that relatively has on time when one approaches the speed of light. Anderson’s book examined the extremes, reaching out for the end of time, the end of the universe, the end of all things–all within a single human lifespan. Haldeman’s novel took the personal approach, looking at the effect of time dilation on a few individuals, over a much small time scale.
I was more effected by The Forever War than by Tau Zero. The notion that time slows down as a person approaches the speed of light fascinated me. I remembered a commercial for Omni magazine which described the twins paradox. All of that stuck with me, and I remembering wondering if a parent traveled close enough to the speed of light, might not their children grow older than them while they were away?
The thought eventually led me to write a story called “Flipping the Switch” that deals with that very paradox. Although I first started writing the story in late 2008 or early 2009, it wasn’t published until 2013, when it appeared in the original anthology Beyond the Sun, edited by Bryan Thomas Schmidt.
And then, a week ago, I finally got around to seeing Interstellar. While I am not generally a fan of science fiction movies (something that people have a hard time believing, since I write science fiction), I really enjoyed Interstellar. I was the best science fiction movie I’ve seen since Contact. I watched the movie, and then, later that same evening, I watched it again. I know that some people complained that, despite the best efforts, some of the science was not accurate. Others complained that the dialog was poorly written. I enjoyed it all. Most of all, I enjoyed seeing the paradox that I envisioned in my story come to life in a well-executed conclusion. Indeed, the ending of Interstellar reminded me, in some ways, of the ending of Isaac Asimov’s “The Bicentennial Man.”
I also loved the vision of robots in Interstellar. The AIs of that world reminded me of the AIs that populate Jack McDevitt’s Alex Benedict novels. Their versatility was impressive, but I also enjoyed the personalization: you could define humor, honesty, and other elements to your taste.
Contact was a more cerebral movie than Interstellar, but Interstellar made me feel like I was traveling to alien worlds. It is a movie that I know I will enjoy watching again from time to time.