Too Long; Didn't Read
Public anonymity is dead. While that phrase, “public anonymity” may sound like an oxymoron, let me explain: You can no longer walk along a street, visit a store, or attend an event without the possibility that someone — a government entity, a storeowner, or a tech giant — knows that <em>you</em> are there and can track everywhere else you’ve been, simply by your physical appearance.