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Murphy's Law originated during World War II, when Edward A. Murphy Jr., an American engineer, was working on a project to measure the rate of change of acceleration, known as "jerk," in a rocket sled. During the testing, Murphy noticed that a technician had incorrectly wired a sensor, which led to a faulty reading. When Murphy pointed out the error, he said, "If there are multiple ways to do something, and one of those ways will result in disaster, then somebody will do it that way."

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