Sensors - Authentication

Future scenario:
It's the year of 2025. Ben wakes up at 6.30 in the morning and grabs his mobile device. He puts his pointer finger on the authentication sensor which reads his fingerprint. The device tells him that he's logged in as an authenticated world citizen and welcomes him back online. From now on all his online communication is signed with his world citizen id. Ben presses the built-in money button and sends the 1000 world coins he owes his brother. Ben's brother is also online and quickly expresses his gratitude that he finally got his money back. Ben switches to incognito mode and comments in a forum that he'll be late to that damn A.A meeting. Then he goes to the shuttle just outside his house which takes him to his work place. The fee is automatically paid by his device.
A good friend of mine (Odd Möller) came up with the idea of an authentication sensor.