grandfather paradox
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Grandfather paradoxTRANSCRIPT
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GRANDFATHER PARADOX : A PARADOX???
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Novikov self-consistency principle
Whatever is done in the past can never alter the future in any mannerParallel universes /Alternate timelines
Every decision you make has a consequence
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NOVIKOV SELF-CONSISTENCY PRINCIPLEIf an event exists that would give rise to a paradox, or to any "change" to the past whatsoever, then the probability of that event is zero
According to this hypothesis, the only possible timelines are those which are entirely self-consistent
Anything a time traveler does in the past must have been part of history all along
The time traveller can never do anything to prevent the trip back in time from being made since this would represent an inconsistency.
In layman's terms, this is often called determinism. It conflicts with the notion of free-will.
If time travel is possible, then actions are determined by history.
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