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A comment on Paradox-free time travel is theoretically possible. Parent comment

Re:Paradox-free time travel is theoretically possible by tremon on Thursday January 21, 2021 @07:19AM (#25858120)
The conservation of energy only applies to a closed system. If we can "create" an apple at any given point in time, that only means that "the universe at a given point in time" isn't a closed system.
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