Maybe this is making a slightly different point (i.e. the usage of immutable physical features as "passwords", which I agree is largely useless), I think we're just entering a post-privacy era. Being around 40, I willingly fed the machine (Facebook) with hundreds of pictures during university, and had I not, my friends would have more than made up for it. It's absolutely possible to photograph every person you pass by every day, and Facebook most certainly has the keys to identify most all of the people. That dystopian combination means that unless you're welling to move to a largely uninhabited place, each of our whereabouts can be largely resolved with technology available _today_ at a completely reasonable cost.

Not only that, almost everyone on this forum walks around with a device that shares their identity and location with unscrupulous companies (cell phone carriers) whose data is available en masse to the government. (N.B. I have an iPhone and appreciate and even _trust_ all the privacy work put into it; however, the cell phone tower thwarts location tracking, and participation in social networks thwarts face tracking.)

I've long thought that rather than try to limit the information about us, we ought to _flood_ the Internet with information about us. Make the data available untrustworthy.

Or, accept it. So long as it remains in the hands of corporations and not solely the government, it guts both ways — a senator can no longer be publicly opposed to same-sex equality legislation while engaging in a homosexual relationship themselves.

AI seems to be pushing us down the former road.