Cloudmoney

读书评论:
  • kalos
    01-04
    读了outline cash vs cashlessthe reason why the cash should exist today why cashless could be fashionableIs necessary totally replaced cash into digital currencyhow can we improve the payment system including privacy and safetycash比喻成horse cart 和bicyclecashless比喻car到底是horse cart had replaced with car or should bicycle and car be available today