Noted: The idea of selling access to our most personal information is not such a departure in an era in which we already implicitly “monetize our privacy in many ways”—for example, by effectively exchanging our browsing and search behaviors for access to “free” websites, notes Alta Charo, a bioethicist at the University of Wisconsin Law School in Madison. In contrast to such largely hidden exchanges, emerging blockchain-based platforms could provide people “potentially more opportunities to have very specific control over what’s given out and in what specific form.”