[There was just too much talking, to explain everything to us rather than let the puzzle reveal itself.] Hmm... reminds me of Star Wars. The original trilogy showed, the prequels talked a lot, but really showed nothing. I agree; show, don't tell!

And the inconsistency between optimism of humans surviving vs. this being their last chance? He also said that this was the first Earth colony. If it's the first, there must have been more afterwards, right? And then, what about Mars? Lots of trouble here with history.