I don't view privacy as being limited to the scenario where information is only available to oneself. I may keep information to myself and if so that is fully private information. I may want to share information with you and have it be private to/between us. In both cases, I'm trying to control who knows the information and prevent anyone else from knowing it. To bound a secret so to speak. Unfortunately, information... including virtually any and every shred of information about our lives... has value and so others want it. My ability to keep something secret amongst parties of my choosing means others who are eager to monetize/use the information in some way won't be able to. Which is exactly what I want, but of course, is exactly what they don't want. So they will do their very best to in some way lure or coerce me into exposing that information to them. I see more and more commentary from government and commercial interests to the effect that the old definition of privacy, revolving around the ability to keep/bound a secret, is dead. It isn't that it is really dead, or ever will be. It is simply that they want to kill it. They want to force themselves into a position where they are always a party to the information. Sadly, they have a far greater affect on what comes to market than I and other consumers do.