Many people who read and write science fiction believe that through the last few decades science fiction has actually prepared society for future technological advances. The idea, some say, is that in science fiction all the pitfalls, moral uncertainties, and roads best not traveled can be discovered and worked out in the pages of entertaining fiction, rather than bitter experience.
So why won’t this generation learn? If science fiction has taught us one thing, it’s that if you have the ability to go into the past in order to change events and make the world a better place… don’t do it! You’re just gonna fuck it up.