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FTL (faster than light travel) cannot be slow by definition


* Even if aliens do theoretically exist, in settings where the population is [[CorralledCosmos confined]] to a single star system (or handful) and there is no (or very slow) FTL, neither humanity nor the aliens would be in any position to encounter the other.

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* Even if aliens do theoretically exist, in settings where the population is [[CorralledCosmos confined]] to a single star system (or handful) and there is no (or very slow) FTL, neither humanity nor the aliens would be in any position to encounter the other.
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** The manga series ''Manga/CrossboneGundam Ghost'' finally features alien life in the original UC timeline, though merely a form of (extremely dangerous) bacteria that evolved on one of Saturn's moons.

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** The manga series ''Manga/CrossboneGundam ''Manga/MobileSuitCrossboneGundam Ghost'' finally features alien life in the original UC timeline, though merely a form of (extremely dangerous) bacteria that evolved on one of Saturn's moons.

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