Murder. Yes we are still talking about time-travel. Does life continue forever? Reversing time? Impossible. Agreeing with time by creating something to remain forever...? Many people's earliest memory is some kind of discipline, from being naughty. But before this however lies the subconscious. Forgotten memories. Memories that would not be there had they not been passed through. One cannot rewind time if time had not been passed through.
Example, "A transformer cannot return to it's original form." Once it has changed, it stays as it is. You cannot change the past.
Is that true though Gawdzilla Sama? A knife can be used to cut different things which makes it a different knife, which can then be folded.
...when a bullet is fired from a gun the marks on the bullet are as individual as fingerprints. A knife must leave just as individual marks, making it a different knife with each cut.
Ah, but you are forgetting that many people remember ice cream, and this "dairy connection" underlies everything in our mental makeup. Without this connection we would be nothing but brains in jars; virtualized bacteria with prehensile paradigms rooting for the minerals underlying all our dogmas. And no one wants to virtualize contagion, so it's a good thing that discipline is not subject to the Alcubierre phrenology.
If it was possible to travel back to a point in time would that also make it possible (in "theory") to travel to all the points in one's existence in a continuous stream? And then follow the stream upstream back to one's starting point.... I understand reputable scientists do say that "time travel" is hypothetically possible with a "machine" the size of Trump's arse ** (not the scenario I have outlined above) but might it be that any hypothetical time travel would only occur at the expense of complete entropy of any matter involved(ie only indistinguishable objects could "get through") **actually more like the size of the solar system if I recall correctly.
Each cut (even paper) blunts the blade in a different way, making it a different blade with each slice.