By Rochelle Gurstein @TheBaffler.com, for July 2018 print issue.  (Gurstein is the author of The Repeal of Reticence: America’s Cultural and Legal Struggles over Free Speech, Obscenity, Sexual Liberation, and Modern Art.)

WHAT DO WE LOSE WHEN WE LOSE OUR PRIVACY? This question has become increasingly difficult to answer, living as we do in a society that offers boundless opportunities for men and women to expose themselves (in all dimensions of that word) as never before, to commit what are essentially self-invasions of privacy. Although this is a new phenomenon, it has become as ubiquitous as it is quotidian, and for that reason, it is perhaps one of the most telling signs of our time. To get a sense of the sheer range of unconscious exhibitionism, we need only think of the popularity of reality TV shows, addiction-recovery memoirs, and cancer diaries. Then there are the banal but even more conspicuous varieties, like soaring, all-glass luxury apartment buildings and hotels in which inhabitants display themselves in all phases of their private lives to the casual glance of thousands of city walkers below. Or the incessant sound of people talking loudly—sometimes gossiping, sometimes crying—on their cell phones, broadcasting to total strangers the intimate details of their lives.

And, of course, there are now unprecedented opportunities for violating one’s own privacy, furnished by the technology of the internet [....]

Given our widespread obliviousness to the current situation, we might be better served by asking: What did people used to believe they lost when they lost their privacy? Surprisingly, it turns out that a large number of people began to speak of privacy in a self-conscious way only toward the end of the nineteenth century [....]