>>> It kind of reminds me of
 >>> Time's Arrow, which gave us aliens killing people for no reason that was
 >>> ever explained.
 >
 > CK> In Time's
 > CK> Arrow it was explained why they aliens were killing humans, I could
 > CK> plainly see that they were using the humans for a food source.
 >
 >Obviously humans were a source of food.  Why did they have to go into a
 >parallel dimension in order to feed?  Seems very impractical to me.  As
 >I said, Star Trek is at its best when we come to really understand the
 >"bad guys."  Often they don't turn out to be so bad.
Well it wasn't exactly a parallel dimension (depends on how you see it)
Maybe they think humans are tasty?
You've seen how people go out of their way for good food haven't you?
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