Time travel the main concept of the most science fiction movies but the direction of flow of time tell us that time travel in a particular direction i.e from past to the present to the future. But whether it is possible that we can travel opposite to this can we go back in time and recreate the history.
Actually there are two scenario which tell us about the nature of past. According to the first the past which is written can never be changed whatever you do where ever you go but the past which is written cannot be changed , but the second scenario tell that past can be written and we can recreate history but when ever we do any changes in past we create an alternate universe every time we do changes alternate universe in formed and we return to future we came back in original universe.
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Music credit- Whitesand music–https://www.youtube.com/channel/UCe96JG5gdgSRtmqStx0isXA
video credit – Pixabay, NASA
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