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March 28, 2007

David: Reflex

“It takes time for light to travel from the stoplight to my eyes,” the driver thought. “It takes another small but nonzero portion of time for the image to travel along my optic nerves into my brain. There is a slight delay as my occipital lobe processes that information, and another as the results are sent to the parts of my brain responsible for decision-making.”

“An interval passes while a signal travels from my motor cortex, down my spine, and into the muscles of my leg. The muscles do not contract instantly.”

“Therefore, I haven’t hit the brakes in time.”

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