Electronic books are beamed directly to handheld devices, without the need for bookshops, travel, and the pulp and paper of physical books. Education is increasingly online as well, and will soon enable students everywhere to receive first-rate instruction at almost a zero “marginal” cost for enrolling another student.
如今，银行业务也可以通过电话实现，越来越多的医疗诊断也是如此。电子书出现在各式各样的手持设备中，你不再需要跑到书店去，制作图书也不再需要用纸浆。教育也越来越在线化了，很快，各地的学生就能以几乎为零的（增加学生人数的）“边际成本”获得一流的教学服务。