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In this adventure, we might employ the butterfly effect as a metaphorical bridge between tomorrow and today. The term derives from a short sci-fi story by Ray Bradbury in which a hunter from 2055 travels into the past on a prehistoric safari, accidentally kills a butterfly, and returns to find his present has been changed in subtle yet meaningful ways. The phrase was given new life by Edward Lorenz, a mathematician and meteorologist who pioneered chaos theory by discovering how sensitive dependence on initial conditions shapes weather patterns. He’s credited with the aphorism that the flap of a butterfly’s wings in Brazil could set off a tornado in Texas.[

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