Critical Thinking 又retake,上年忘記去考試的代價真是很重,不過這次的professor 教得很好,又有新得著,以下是其中一條謬論: If there is motion, one must pass a distance in a finite time. If one hv to pass a distance, he must pass half of this distance first. This half of distance hv it half of distance, this means a distance can be cut into infinite number of distance. However, one cannot do infinite number of motion in a finite time. Therefore, there is no motion at all.