Here's another. Why oh why does every second alien have a name full of apostrophes? What's wrong with John? "G'day Bill, I'm John, from Alpha Centauri." And do they have inter-galactic 'English As A Second Language' evening classes?

Actually, you've gotta admit, sci-fi aliens are generally pretty lame!

Do like Cylons (Six.. say no more; Cavil was suitably wry) and Daleks. Exterminate!

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If something is in me which can be called religious then it is the unbounded admiration for the structure of the world so far as our science can reveal it... of the manifestations of the profoundest reason and the most radiant beauty, which are only accessible to our reason in their most elementary forms...
Albert Einstein