Danny Boy 7 wrote...
@MarkDarrah: Butterfly effect!
Although I'm probably mistaken the butterfly effect is when a small event causes some great one somewhere else in the world for example a butterfly dying in America causes a tornado halfway across the world. So they may be talking about how "choices matter" but in a way that is much more apparent, so by killing/keeping someone alive way later in the game maybe an invasion is staged.
LOL Yes, the classic example, though, is not the butterfly dying, but flapping his wing, which could cause a distant tornado due to chaos theory. And... you know... they might have just seen a weird glitch on screen that... looked like a butterfly!

Humph, the vagueness continues...