Originally posted by Lowell Goudge 
did the brother die on pandora or earth?
On Earth, in some mugging, that's how Jake ended up substituting, in the first place.
Quote: if on earth, it could have been that jake was sent on the basis that it would be acceptable, also regardless, communication is normally 2 way, so you need to double the communication time perhaps or tripple it.
Well, communication would be more like the mail in days of sail than a conversation.
It never says whether or not they have any communication faster than light. But light's still faster than their ships, so they'd get a data-dump as soon as a radio signal could reach them. (It also doesn't say whether or not Earth has powerful enough transmitters or they have to wait for the ship to come within range, but they probably would.)
Quote: Let's just assume they have managed the time warp on communications like they did on star trek and accept the story.
It's fantacy, it does not need to meet our concepts of physical reality
Hee, well, if people are going for a modicum of 'hard sci fi,' it's not hard to arrange things so they'll satisfy most sci-fi fans.
I think the only point of real confusion is some not picking up on Jake's brother having died on Earth before the trip even began, and maybe a lot about the moviemakers leaivng out details most would find boring.
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