Very good Article that is inspiring in a positive way. I believe that in the near future there will be no more fiat currency but only digital currency. As i live in China, I see it happen already as there's many places where you can only pay by mobile through wechat or alipay. This is also more secure and prevents robbing like in the old days.
And... there is more control by government to lock you out if you are a dissident who poses a threat to their control :/ Bad shit yo... convenience and comfort comes with a price, a heavy price on freedom.