Losonti Tokash wrote:I don't know. Why do people quote themselves in their signatures? Water being rare is less moronic than having ships that travel faster than light. It was just some half-assed throwaway line that would explain why they want Earth's water or whatever.
I believe the saying is that in fiction, the impossible is alright, but the improbable is unforgivable. We forgive FTL motors because there is no alien movie without aliens and having them get her is a convenience. Of course, you could easily make an alien invasion movie where the aliens don't have an FTL at all, which in fact makes the invasion happen because the aliens simply can't just pack up and leave. Some good fiction has been generated on that premise, "Footfall" for one, where the aliens in question didn't have much of a choice but attack, because their psychology didn't allow them compromise when they found their destination full of intelligent natives. A sufficiently talented writer can not only think of a good reason for the alien invasion but have it drive the story.
But no, water being rare in the universe is more moronic than ships travelling faster than light, because the FTL motor is clearly a handwave, while water being rare in the universe directly violates what we see on screen. Somehow you managed to miss the fact that, you know?
The solar system is part of the universe and not a unusual part of it. If water is incredibly rare in the universe, the Earth and many of the rocky bodies in the solar system wouldn't be soaking in it. In the trailer we see a normal modern Earth, not a bone dry desert hellhole (wait, check that, the movie about LA so we DO see a bone dry desert hellhole, but at least its next to an ocean). The sort of cosmology that would make water unlikely the form would also radically change the Earth in ways that certainly wouldn't allow a completely identical Earth to arise. Moreover, if water was so rare, chances are the aliens wouldn't need it, they be dependent on something that wasn't so rare (after all, all the things life is dependent on actually tend to be really, really common water, oxygen, etc). So let's go back to where we say that your suggestion was completely moronic and move on.
That's the thing, people here aren't suggesting that the movie is bad because the premise is retarded. They are saying that not only is the premise retarded, it's been done to death. The evil alien invaders coming to steal our water is a dead horse that for some reason movie writers love to beat out of sheer lack of imagination, just above the aliens wanting to steal our women and just believe the aliens want to eat us.