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It was my impression that in Schisms, the aliens resided in a separate universe (mulitverse idea, different vacuum crystalization, take your pick of psudo-theoretical explanations), and used subspace as a way to open a portal to "our" universe, and find it it the first place. Now, how exactly they managed to "seal" off our universe is anyone's guess - usual Star Trek techno-babble..
There was a merge tag to Hyperspace (science fiction), but no talk about it on either talk pages. If nobody discussed it, seems unlikely that anybody proposed a merge in the first place (save for the tagger). Secondly, the quote attributed to Geordi was incorrect, that was fixed, unless my version of Schisms differs from the broadcast version or something. S7evyn (talk) 06:37, 15 July 2009 (UTC)