Here’s an article on the future of payments. Not only is cash becoming obsolete, but the idea of a physical credit card is quickly becoming obsolete, replaced right now by mobile apps, and eventually by RFID implants and facial recognition. Somehow money that is just invisible transactions in the air seems less real to me. But then, credit cards seemed less real than cash just recently, and before that paper money seemed less real than gold and silver. Eventually, we will get used to this too an it will seem real. Of course, any form money is only as real as we collectively beiieve it to be.