"They" can't track all of "us."
There would simply be too much information to be sifted through. If you think of all the info about you on the net, all your searches, all your credit card transactions, all your cell phone info, there is simply too much information.
What they can do is dig it all up if for some reason they get interested in you. It is creepy that after the fact, folks can dig up the last three days worth of a criminal's activity on video and surveillance cams, and reconstruct their whole life for some time back.
I've heard rumors of near the end of the Soviet Union, storage areas full of tapes and other data that had been collected but which had never gone through. "They" simply didn't have the ability to watch all of "us" then, and They don't now.
There is a critical mass problem here, and computers and modern data storage don't fix that problem. If anything, they increase the amount of data on each and every person exponentially, making the amount of material of interest that much harder to sift through.
Or get off the computer, go cash, and ditch the phone. But I wouldn't guess you'ld be that much more invisible.




