Rise of the machines: has technology evolved beyond our control?

Technology is starting to behave in intelligent and unpredictable ways that even its creators don't understand. As machines increasingly shape global events, how can we regain control?

The voice-activated gadget in the corner of your bedroom suddenly laughs maniacally, and sends a recording of your pillow talk to a colleague. The clip of Peppa Pig your toddler is watching on YouTube unexpectedly descends into bloodletting and death. The social network you use to keep in touch with old school friends turns out to be influencing elections and fomenting coups.

Related: YouTube to clamp down on disturbing kids' videos such as dark Peppa Pig