The article says clearly that they are trying to figure out a stored value card. If they do, the only chilling part is if the means of exchanging it was somehow

The article says clearly that they are trying to figure out a stored value card. If they do, the only chilling part is if the means of exchanging it was somehow unobtainable. It's worth remembering that cash is no clear panacea. Germany's inflation made it unworkable. Some countries have arbitrarily changed currency. Its value is based on agreement. A true e-currency would have different problems. It would not necessarily be bad.