Facebook's tech boss on how AI will transform how we interact

You can now hold neural nets in the palm of your hand. Last week, Facebook unveiled a tool called "style transfer" that applies visual effects to live phone video in real time. Making your clips look like an episode of The Simpsons or a Van Gogh painting may seem gimmicky, but the artificial intelligence required to do this would usually need to run on massive servers. Google squeezed a neural network into its Google Translate app last year. Now, Facebook has developed a deep learning system called Caffe2Go that is condensed enough to run directly in mobile apps on iOS and Android.