An optimist's guide to a future run by machines

If you're worried about the future and where technology might lead us, 2017 didn't help. The warnings kept rolling in about potential job losses from automation and machine learning. More than 375 million of us will need to completely change occupations to avoid being replaced by robots, a recent report estimated. Meanwhile, artificial intelligence keeps getting smarter: The world got its first robot citizen, another robot learned to do backflips, and DeepMind's AI has mastered chess. It doesn't need to be so frightening, says Tim O'Reilly, the founder and chief executive of O'Reilly Media.