Perhaps the most evil things in the world are not natural phenomenon like volcanoes, crazed lions, or flesh eating bacteria. Maybe they’re man-made: like nuclear weapons, gas guzzling cars, and selfie sticks. And perhaps, the most evil of all mankind’s crazy schemes to get one-up on one another are those that, in their own sinister manner, are self-aware.
We are some years off yet, but it will not be long until artificial intelligence will surpass the skills of human imagination and ingenuity. And then, who knows? Will they be friend or foe? They might well just get on with curing diseases and exploring the universe on our behalf. For budding sci-fi writers, though the choice is clear- and countless villains have been made out of rogue computer systems. Listed here is some of our favourites, ranked very scientifically, to give you the most evil AIs in books, video games, and film.