Then I'm going to come back to finally concluding with problems that we see.

然后我会回头总结,当前存在的一些问题

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But there is this sort of sense of uncertainty that you see in someone like Descartes, who finally just goes back to basics and says, "I think, therefore I am."

你可以在那个年代从某些人身上,看到一种怀疑的精神,比如笛卡尔,他最终逐本溯源提出"我思故我在"

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And finally, see if I can track an IP address.

最后，我们看下是否可以跟踪IP地址。

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