来自《耶鲁大学开放课程：基础物理 第12集 第12集》

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  but that's because we know in practice
  但这是因为你知道实际上
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  no one is going to bother to do that just to fool you.
  没有人会为了戏弄你费这么大力气
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  But if that did happen,
  可如果真的发生了
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  you won't know the difference.
  你是无法区别的
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  So, the reason we rule that out is we know
  我们排除这种可能的原因是因为我们知道
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  some extraneous things not connected to the laws of physics.
  某些与物理规律无关的其它事情
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  That's why we don't like to open the window
  那就是为什么我们不要打开窗
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  and look at the landscape because then we have a bias.
  去看窗外的风景 因为这样我们便会有偏见
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  Open the window and look at another train
  打开窗看见另一辆火车
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  and you just won't know.
  只是你不知道罢了
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  That is the principle of relativity,
  那是相对论的原理
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  that uniform motion between two observers,
  两个观测者之间进行匀速运动