By narrowly construing privacy to be almost exclusively about end-to-end encryption that would prevent a would-be eavesdropper from intercepting communications, he manages to avoid having to think about Facebook’s weaknesses and missteps. Privacy is not just about keeping secrets. It’s also about how flows of information shape us as individuals and as a society. What we say to whom and why is a function of context. Social networks change that context, and in so doing they change the nature of privacy, in ways that are both good and bad.
Russian propagandists used Facebook to sway the 2016 American election, perhaps decisively. Myanmarese military leaders used Facebook to incite an anti-Rohingya genocide. These are consequences of the ways in which Facebook has diminished privacy. They are not the result of failures of encryption.
“Privacy,” Zuckerberg writes, “gives people the freedom to be themselves.” This is true, but it is also incomplete. The self evolves over time. Privacy is important not simply because it allows us to be, but because it gives us space to become. As Georgetown University law professor Julie Cohen has written: “Conditions of diminished privacy also impair the capacity to innovate … Innovation requires room to tinker, and therefore thrives most fully in an environment that values and preserves spaces for tinkering.” If Facebook is constantly sending you push notifications, it diminishes the mental space you have available for tinkering and coming up with your own ideas. If Facebook bombards the gullible with misinformation, this too is an invasion of privacy. What has happened to privacy in the last couple of decades, and how to value it properly, are questions that are apparently beyond Zuckerberg’s ken.