In my opinion, "stop emitting information if you want privacy" is just as weak an argument as "stop spying on me by remembering information that you perceive."

In my opinion, "stop emitting information if you want privacy" is just as weak an argument as "stop spying on me by remembering information that you perceive." There is a continuum between privacy and convenience, and a certain amount of privacy must be given up in order to actually get things done. Mass surveillance takes advantage of the necessity of leaking information in order to control people. Taking extreme measures just to get a little bit of privacy should not be necessary - you should have a "reasonable" amount of privacy by default. It is the intent and reasoning behind the collection of this information that is usually found to be objectionable, not the actual process of perceiving and remembering it. And the opposite applies here - just as a certain amount of information must be leaked in order to get things done, a certain amount of information must be spied upon in order to regulate things. It's all about balance.