Is how so stupid

In Germany, being on time is risky enough because your hosts will probably already be there waiting, wondering how on earth you could be so stupid.

在德国，准时赴约已经够危险的了，因为你的东道主可能已经在那里等了，好奇你怎么会这么笨。

The first time, and many others, I see the contradiction between human and nature, environmental pollution, energy deficiency. How stupid human are, and human is so small in the disaster.

第一次，和很多人一样，我看到的是人类和自然的矛盾，环境问题，资源问题，觉得人类是多么的愚蠢，在灾难面前是多么的渺小。

I often think it is too stupid to try to search for lost time, though I did it just like what I just said. so how can I explain it?

我常常认为去寻找已经消失的时光是愚蠢的，但是我却那样做了，正如我刚才所说的那样。那么我将怎样去解释它。