Sahar Massachi

Being on social media can feel a bit like living in a new kind of city. My job used to be to protect the city. I was a member of the Facebook Civic Integrity team. My coworkers and I researched and fixed integrity problems—abuses of the platform to spread hoaxes, hate speech, harassment, calls to violence, and so on. Over time, we became experts, thanks to all the people, hours, and data thrown at the problem. As in any community of experts, we all had at least slightly different ways of looking at the problem. For my part, I started to think like an urban planner.