A slow tech movement

Social media played a big role in 2016, from President-Elect Donald Trump's tweeting to the spread of disinformation on the web to the constant rush of daily viral stories, both entertaining and anxiety-inducing. The power and addictiveness of social media now has some Silicon Valley insiders comparing the tech industry to big tobacco, fast food or even gambling, as in eager to sell people on a pleasure that could be dangerous for our psychological health. DnA talks to Bianca Bosker about her profile of Tristan Harris, former "product philosopher" at Google who is pushing for a "hippocratic oath" for software designers. Google's Rob Giampietro talks about ways in which the industry is designing tools to calm the online experience.