The Facebook study’s publication evoked fierce debate as experts and the wider public finally began to reckon with Facebook’s—and the other internet companies’—unprecedented power to persuade, influence, and ultimately manufacture behavior. Harvard’s Jonathan Zittrain, a specialist in internet law, acknowledged that it was now possible to imagine Facebook quietly engineering an election, using means that its users could neither detect nor control.

Shoshana Zuboff, The Age of Surveillance Cap…, loc. 941