The privacy commons is shrinking fast.
Eventually, it will work. You’ll be able to wear a camera that will automatically recognize someone walking towards you, and a microphone that will automatically tell you who that person is and maybe something about them. None of the technologies required to make this work are hard, it’s just a matter of getting the error rate down low enough for it to be a useful system.
Tom Cruise – Minority Report. Billboards see you coming, check your bank account, and try to sell you stuff you can afford.