On the modern Internet, there is enormous pressure *against* an individual user's privacy. Advertisers, websites that show ads, and the ad tech platforms between them all have a monied interest in "targeting" ads. That is, showing the right ads, to the right people, at the right time. Targeting ads this way means people are more likely to click and buy something, and thus that the advertisers, websites, and ad tech platforms all make more money. Most ad targeting relies on "profiles" of Internet users: information about their interests, location, and spending habits.