The conventional wisdom around the responsibilities of platforms like Facebook, Google, and Amazon has evolved greatly. 1995-2010 saw the era of “rights,” in which the prevailing view was one of intermediaries’ abstention from shaping the flow of users’ contributions. 

From then until now there’s been a new framework, “public health,” emphasizing the harms that can result from unchecked online activity, just as AI techniques promise new ways to scale platforms’ monitoring and intervention in the activities they facilitate.

What’s next? We'll explore.