Science fiction is about speculation and the topic it has speculated on most is space travel. What if science fiction is wrong? What if it turns out that humans aren’t suited for living in space or colonizing other worlds? What if homo sapiens need to live on Earth? How will such knowledge affect your philosophy?
Decades ago I realized that science fiction was my substitute for religion. I didn’t believe in God, heaven, or an afterlife, but I did believe in humanity spreading across the galaxy. I don’t know why that brought meaning to my life, but it did. I grew up reading and watching science fiction during the Project Mercury, Gemini and Apollo year of the 1960s. As I covered in my last essay at Worlds Without End, “A Distance Too Far,” new research is showing the biological limitations of humans living in space. Space scientists hope to overcome those limitations but what if they can’t? What if humanity is condemned to living on Earth until we go extinct? What if we have to watch robots and AI machines live out our Star Trek dreams?
I assume most science fiction fans will react the same way the faithful react when they encounter an atheist. It’s really hard to give up a core value which gives our minds meaning. I have no idea how adaptable humans are to space but I’m wondering what it will mean if we can’t. If you’re a hardcore science fiction fan could you give up your faith in the final frontier?
What happens to us when we no longer believe in getting to heaven or other planets? Will we find meaning living vicariously through the eyes of our robots who leave Earth and become immortal among the stars? What kind of science fiction will be written in fifty years if we have tried to colonize Mars and failed? If we discover galactic radiation fries our brains and it requires 1-G to reproduce normally – will we give up on human space travel?
Or think about this. What if we do colonize Mars and adapt but discover everyone hates living there? There are thousands of people who would volunteer for a one-way mission to Mars. Have you ever wondered why? What motivates people to want to live on a barren rock, that’s bathed in solar and galactic radiation, that’s colder than anyplace on Earth, and its atmosphere is unbreathable? Is it a powerful fantasy implanted in childhood like theology? Is it a deep drive to spread our genes to new worlds? Or is it a psychological desire to escape an unhappy life here?
What if we discover that many of the hopes of science fiction won’t come true for us? Think a moment about our other science fiction dreams. What if we can only push our bodies so far before longevity research peters out and we realize immortality is impossible? What if we can’t download our minds into machines or clones? What happens when we discover that being homo sapiens comes with limits that can’t be surpassed? I’m sure we’re far from discovering those limits but what if someday we know those limits with certainty?
Science fiction has always given us hope for unlimited potential. Yet, reality suggests we’ll eventually bang into the glass walls of our aquarium. I wonder what science fiction will speculate on then.