电视手表之类的伟大构想有时需要等上几十年才能变为现实,高昂的成本使这些构想仅仅是一个构想而已。当商业模式最终变得可行时,我们还要等到供应商定义好标准、并创建一种使用户易懂好用的界面之后才能最终付诸实施。例如,今天你虽然能用手机来收发电子邮件,但在多数情况下,手机界面使用起来非常困难,因此人们一般只在紧急情况下才用它来收发邮件。 Great ideas such as TV watches sometimes take decades to become a reality, and the high costs make these ideas a mere conception. When the business model finally becomes feasible, we have to wait until vendors define standards and create an interface that is user-friendly and easy to use. For example, although you can use your mobile phone to send and receive e-mail today, in most cases, it is very difficult to use the mobile phone interface, so people usually use it to send and receive e-mail only in case of emergency.