Why you shouldn't let the super-intelligent machines in 'Ex Machina' and 'The Avengers' freak you out

We've all seen the headlines. Tech giants like Bill Gates and Elon Musk have been quoted as saying artificial intelligence (AI) has the potential to "destroy us all" and that it's "humanity's biggest existential threat." The problem is many of these quotes are taken out of context. Most experts don't think we're on the brink of being overrun by AI robots (though these supermachine's appearances in recent movies like Ex Machina aren't helping) -- they're actually optimistic about the future of AI...