他认为将人类送上火星会让我们学到很多东西，比如人类在一个大不相同的环境中生存的能力。
He thinks sending people to Mars will allow us to learn a lot of things—for example, the ability of humans to live in a very different environment.
但如果你有些要卖的东西，不同类型的网站设计则作用大不相同。
But if you have something to sell, site design can make all the difference.
Nick的观点是，传统的经商模式是通过给人卖东西来获得回报，提供网络内容有一样的地方，却又大不相同。
Nick's point is that the traditional way around this is to try to earn income from selling people stuff related to but distinct from the content being presented.
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