So we live in a world where much of the progress that new technology permits is embodied in products that must be given away for free. A somewhat haphazard sub-set of potential products can, with the right business model, be profitable – say, through advertising or by selling the information that they passively collect from users.
因此我们生活在这么一个世界上：新技术所承载的进步附着于一些免费的产品之上。一个潜在产品某种程度上任意的一部分，只要采取了正确的商业模式，就可以赚钱——比如说出售从用户那里顺便收集的信息或是拿来做广告。。