Eek! Aliens are going to abduct me. Oh no! Skynet is going to take over the world!
There are a lot of wondrous things in the worlds of science fiction. We've seen technology from stories made real decades later and events happen just like they were written. Yet it doesn't make the horrors of sci-fi true. The fact that so many people fear these things could happen only says how well the authors did their jobs.
Are there aliens and would they abduct us? There are likely aliens, but the chances they are here are very slim. Plus would a greatly advanced race with amazing technology really resort to kidnapping and probing humans to learn about them? They would have scanners that could tell them everything they want to know, and they can observe us in our natural habitats. Nope, not creepy at all.
Will an asteroid hit Earth? Not at all likely. NASA says there are no near-Earth asteroids or comets, and their chances of identifying a big one that might cause worldwide damage early so something could be done to stop it are nearly 100%. But a Sharknado, now that's a different story!
Will AI evolve and take over the world? No. AI is only composed of what we put in it. If robots try to take over the world then someone programmed them that way. AI can never replace the ingenuity and perseverance of humans. Plus a few well placed EMP bombs will take care of the problem easily!
Dystopians are immensely popular be they primal or technologically advanced societies. If there is a worldwide disaster or war, would it be likely something like that could happen? Not really. These are pessimistic views of our future. People will want the society they lost and seek to rebuild it. No matter how dismal it looks sometimes, never underestimate the power of hope and compassion.
Let's hope we have more of a Star Trek future than a Hunger Games or an Idiocracy.
Do you have any fears that have stemmed from science fiction?