Bah, that requires eye hacking (GITS ). Now I understand your point better, and its same with Brave New World, Nineteen Eighty Four, Twelve Monkies. (I prefer Blade Runner.)

This kind of following is already running rampant in logistics. Watch logistics related development and you know where we're heading, too. Mifare RFID cards, transportation systems requiring electronic cards, bank passes, road pricing, barcode, and so on.

It is one side of the coin of the digital age...

We used to pay in gold. Then it became other materials. And depositing at a central place. Then the central place lended your money to others. And bank notes appear. Now its all digits, with banks lending all too happily to whoever they can trick. No wonder we're bankrupt...

Most people just don't realize nor understand (yet)...