(N.B. I am not a security expert. I’ve implemented a handful of reasonable measures to prevent cross-site tracking and limit data collection about my preferences and actions online.) Surveillance capitalism is a real and destructive force in contemporary economics, politics and culture. Whatever utopian visions that Silicon Valley may have had about the transformative power of ubiquitous network technologies have been overwhelmed by the pernicious and opaque forces that profit from amplifying divisions between people.