> That way, you control your data, and you control who you share it with. Well, you already control who you share it with, as you're the one initiating connect

> That way, you control your data, and you control who you share it with. Well, you already control who you share it with, as you're the one initiating connections to sites like Facebook. It just happens people give a lot away to browse sites these days (admittedly exactly what they're giving away remains quite opaque). Unfortunately even if we did move to one-platform-one-person, the question of data control remains as murky as ever. Suppose you are hosting a party so you send your street address to your friends so they know where to show up. Then they play a fun quiz game that tells them their Harry Potter patronus based on the street address of their friends (that means you). Suddenly some anonymous quiz maker (let's call them Oxford Synthetica) has access to your street address and at least one of your friends' info through no direct fault of your own.