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ost_uid0]Exactly, but what set those events in motion? Harry should just have died, after which he couldn't grow older to save himself. The fact that this didn't occur, indicates a predestination paradox.
Another predestination paradox, according to 7of9, is the movie "First Contact". The borg disrupt first contact on earth, which leads the starship Enterprise (with Picard) to help Cograine with his warp-flight. So, the federation thanks its existance to the borg.
There's also a joke about predestination paradoxes made by doctor Bashir in Trials and Tribble-ulations.
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