Quote:
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Originally Posted by AntonioLao Within each null cone is a vertex representing an event (the now) separating the past and the future. The motion of this vertex in spacetime is a worldline. If a worldline closed in on itself, then it is the same as a light cone where time stops. |
We should hope and pray then Antonio,that aworldline does not close in
on itself!Instead of a nice day!It would be the last day?
regards michael.