Quote:
Originally Posted by reprise85
does something actually exist if it's unknowable and unobservable
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a fair point, but technically we do time travel and are all doing so right now. We even know that matter traveling faster in physical space moves slower through time, so we have some theoretical influence over it already. My understanding is that science cannot yet answer why backwards time travel
is not possible, i.e. no one knows why we only experience it in one direction.