I think you have a misconception here, my dear madman.
With your reasoning you could look at a train passing by and no one in the train would be able to bounce a pingpongball on a bat, which for the person in the train would just go straight up and down, whereas for someone outside the train it would go in a "zigzag".

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Optimism does not change the laws of physics. (T'Pol)
A good scientist has freed himself of concepts and keeps his mind open to what is. (Dao De Jing 27)
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Martin ( http://www.geocities.com/DrMartinV )