Predicting A Future Free Of Dollar Bills

See the original posting on TechCrunch

Fingertip in the future Picture the scene. It’s 2020. You’re at the checkout in a convenience store with a carton of milk. But you’ve got no cash and you’ve left your cards at home. No problem. You scan your right index finger; the green light flashes. Purchase approved and you leave. Easy. Is this a realistic vision of the future, or are we only ever likely to see such scenes in science… Read More