I invite you to try this. 1. Hold a piece of paper with some written words on it in front of you. Shake the paper horizontally and try to read the words. Can you? 2. Hold the same piece of paper steady in front of you. Turn your head sideways while trying to read the words. Can you? Our vision system is really amazing, isn't it? Source: BBC Prehistoric Autospy Episode 2. (14:30 minutes into the show)
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