Humans don't like the idea of not being at the top of the food chain; having something we've created taking power over us isn't exactly ideal. It's why folks like Tesla mastermind Elon Musk and noted astrophysicist Stephen Hawking are so determined to warn us of the terrifying implications that could culminate in a Skynet situation where the robots and algorithms stop listening to us. Google is keen to keep this sort of thing from happening, as well, and has published a paper (PDF) detailing the work its Deep Mind team is doing to ensure there's a kill switch in place to prevent a robocalypse situation.