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Then explain why it could be done...black holes don't:) Human science deals with past and results from trial and error. Traveling in the past will some day happen and then we have the whole butterfly...

Do we know if the planet is struck by a meteor and destroyed in 100 years, no and kinda yes. So how do you visit something that may or may not exist. Just one of many reasons...
Is the human race...

Time travel may be possible some day but only backwards, not to the future.

Now that is funny:)