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Please explain as if I am a 6 year old; why is time travel theoretically impossible?

User Andreasgk
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2 Answers

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Time travel would create paradoxes and history could be altered, resulting in something called the "butterfly effect". This means that even the smallest of changes can result in a HUGE difference. If you traveled back in time, you would interact with people and things. This would alter history, creating massive ripples in time. The movie "Back to the Future" and the new Harry Potter book have great examples of this. Hope I answered your question!
User Abhishek R
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3 votes
Why exactly do you mean
User Chriselle
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